{"title":"Shimano Groupsets","description":"\u003cp\u003e\u003cspan\u003eShop Shimano groupsets at The Bike Lab for road and gravel bikes. From 105, Ultegra and Dura-Ace to GRX, explore options for your next build or upgrade, whether you prefer smooth tarmac or routes off the beaten track.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs a mechanic, I value components that are straightforward to maintain as well as enjoyable to ride. Serviceability matters to me just as much as performance, especially on a bike you rely on week after week.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUnsure which Shimano groupset fits your bike? \u003ca href=\"https:\/\/thebikelab.org\/pages\/contact\" title=\"Get in touch\"\u003eGet in touch\u003c\/a\u003e with your bike’s make, model, year and current setup, and I’ll help you check compatibility before ordering. Available for UK delivery.\u003c\/p\u003e\n\u003ch2\u003eShop Shimano by discipline\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"\/collections\/shimano-groupsets-1\"\u003eShimano road groupsets\u003c\/a\u003e  |  \u003ca href=\"\/collections\/shimano-gravel-groupsets\"\u003eShimano gravel groupsets\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"shimano-dura-ace-r9270-12-speed-disc-groupset-di2-electronic-road-bike-groupset","title":"Shimano Dura-Ace R9270 12 Speed Disc Groupset – Di2 Electronic Road Bike Groupset","description":"\u003cp\u003eThe \u003cstrong\u003eShimano Dura-Ace R9270 12-speed disc road groupset\u003c\/strong\u003e brings Shimano’s flagship electronic shifting and hydraulic disc braking to race bikes and carefully considered road builds. The 2×12-speed drivetrain offers closely spaced ratios, responsive gear changes and a choice of gearing for fast rides and demanding climbs.\u003c\/p\u003e\u003cp\u003eSome builds are worth taking your time over. The Bike Lab can help you plan a Dura-Ace upgrade around the frame you love, checking the details before the parts arrive and helping your dream build come together. Every order supports an independent bicycle business.\u003c\/p\u003e\u003ch2\u003eBuilt for the road\u003c\/h2\u003e\u003cp\u003eDura-Ace combines a lightweight HOLLOWTECH II chainset with electronic front and rear shifting. HYPERGLIDE+ gearing helps you change smoothly while pedalling, and the adjustable-reach hydraulic brake levers give you control on descents and longer rides.\u003c\/p\u003e\u003cp\u003eThe semi-wireless Di2 system connects the shifters wirelessly to the rear derailleur, while both derailleurs are wired to the internal battery. Compatible settings and shift functions can be personalised through Shimano’s E-TUBE PROJECT Cyclist app.\u003c\/p\u003e\u003ch2\u003eWhat’s included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eST-R9270 left and right shift\/brake levers with BR-R9270 flat-mount hydraulic disc calipers\u003c\/li\u003e\n\u003cli\u003eRD-R9250 rear and FD-R9250 front derailleurs\u003c\/li\u003e\n\u003cli\u003eFC-R9200 HOLLOWTECH II double crankset in your selected length and ratio\u003c\/li\u003e\n\u003cli\u003eCS-R9200 cassette in your selected ratio\u003c\/li\u003e\n\u003cli\u003eCN-M9100 126-link chain with quick link\u003c\/li\u003e\n\u003cli\u003eBT-DN300 internal rechargeable Di2 battery\u003c\/li\u003e\n\u003cli\u003eEW-EC300 charging cable\u003c\/li\u003e\n\u003cli\u003eEW-SD300 electric wires, 900mm and 1600mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose your setup\u003c\/h2\u003e\u003cp\u003eCrank lengths: \u003cstrong\u003e160, 165, 167.5, 170, 172.5 or 175mm\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eChainrings: \u003cstrong\u003e50\/34T, 52\/36T or 54\/40T\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eCassette: \u003cstrong\u003e11–30T or 11–34T\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOptional rotors:\u003c\/strong\u003e select no rotors, two 160mm rotors, or a 160mm front \/ 140mm rear pair in the \u003cstrong\u003eCassette and Rotors\u003c\/strong\u003e menu. The Dura-Ace RT-CL900 CENTER LOCK rotor package includes internal lockrings and adds £90 for the pair. Rotors are included only when selected. Available combinations are shown in the selectors.\u003c\/p\u003e\u003ch2\u003eCompatibility and support\u003c\/h2\u003e\u003cp\u003eRequires a suitable road frame with flat-mount disc brake mounts, compatible front and rear derailleur fittings, and a freehub compatible with your selected Shimano 12-speed road cassette. The 24mm crank spindle needs the correct HOLLOWTECH II-compatible road bottom bracket for your frame. Your frame must also accommodate the internal Di2 battery and derailleur wiring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom bracket sold separately. No power meter included.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFor help choosing gearing or checking compatibility, \u003ca href=\"https:\/\/thebikelab.org\/pages\/contact\"\u003eget in touch\u003c\/a\u003e with your bike’s make, model, year and current setup. The Bike Lab can help you work through the details before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUK delivery only.\u003c\/strong\u003e\u003c\/p\u003e\u003cdiv class=\"product__accordion accordion\"\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"summary__title\"\u003e\u003ch2 class=\"h4 accordion__title\"\u003eSpecification:\u003c\/h2\u003e\u003c\/div\u003e\n\u003csvg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-caret\" viewbox=\"0 0 10 6\"\u003e\u003cpath d=\"M1 1l4 4 4-4\" fill=\"none\" stroke=\"currentColor\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"accordion__content rte\"\u003e\u003cul\u003e\n\u003cli\u003eDrivetrain: Shimano Dura-Ace R9270, 2×12-speed road\u003c\/li\u003e\n\u003cli\u003eShifting: Di2 electronic; wireless shifters with wired derailleurs and internal battery\u003c\/li\u003e\n\u003cli\u003eLevers: ST-R9270\u003c\/li\u003e\n\u003cli\u003eBrake calipers: BR-R9270, hydraulic disc, flat-mount\u003c\/li\u003e\n\u003cli\u003eRD-R9250 rear derailleur; FD-R9250 front derailleur\u003c\/li\u003e\n\u003cli\u003eCrankset: FC-R9200, HOLLOWTECH II, standard non-power-meter version\u003c\/li\u003e\n\u003cli\u003eCrank lengths: 160, 165, 167.5, 170, 172.5 or 175mm\u003c\/li\u003e\n\u003cli\u003eChainrings: 50\/34T, 52\/36T or 54\/40T\u003c\/li\u003e\n\u003cli\u003eCassette: CS-R9200, 11–30T or 11–34T\u003c\/li\u003e\n\u003cli\u003eChain: CN-M9100 126-link chain with quick link\u003c\/li\u003e\n\u003cli\u003eBattery: BT-DN300 included\u003c\/li\u003e\n\u003cli\u003eCharging cable: EW-EC300 included\u003c\/li\u003e\n\u003cli\u003eElectric wires: EW-SD300, 900mm and 1600mm included\u003c\/li\u003e\n\u003cli\u003eRotors: Dura-Ace RT-CL900, only included when selected\u003c\/li\u003e\n\u003cli\u003eBottom bracket: suitable Shimano road 24mm HOLLOWTECH II type, sold separately\u003c\/li\u003e\n\u003cli\u003ePower meter: not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e","brand":"The Bike Lab","offers":[{"title":"160mm \/ 50\/34T \/ 11-30T · No rotors","offer_id":61211939406154,"sku":null,"price":1799.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 50\/34T \/ 11-34T · No rotors","offer_id":61211939438922,"sku":null,"price":1799.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 52\/36T \/ 11-30T · No rotors","offer_id":61211939471690,"sku":null,"price":1799.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 52\/36T \/ 11-34T · No rotors","offer_id":61211939504458,"sku":null,"price":1799.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 54\/40T \/ 11-30T · No rotors","offer_id":61211939537226,"sku":null,"price":1799.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 54\/40T \/ 11-34T · No rotors","offer_id":61211939569994,"sku":null,"price":1799.0,"currency_code":"GBP","in_stock":true},{"title":"165mm \/ 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groupset\u003c\/strong\u003e pairs precise electronic shifting with hydraulic disc brakes for club rides, sportives and racing. Its 2×12-speed drivetrain offers a broad choice of road gearing, with a balance of performance and value that suits an ambitious upgrade or a new build.\u003c\/p\u003e\u003cp\u003eA bike that feels right makes you want to ride it more. The Bike Lab can help you choose an Ultegra setup around your usual routes and the parts you already own, with straightforward advice from an independent business that’s here to help before and after your order.\u003c\/p\u003e\u003ch2\u003eBuilt for the road\u003c\/h2\u003e\u003cp\u003eHYPERGLIDE+ gearing supports smooth changes while you pedal, helping you settle into a comfortable rhythm as the road changes. The HOLLOWTECH II chainset and adjustable-reach hydraulic levers suit everything from quick evening rides to long days in the saddle.\u003c\/p\u003e\u003cp\u003eThe semi-wireless Di2 system connects the shifters wirelessly to the rear derailleur, while both derailleurs are wired to the internal battery. Compatible settings and shift functions can be personalised through Shimano’s E-TUBE PROJECT Cyclist app.\u003c\/p\u003e\u003ch2\u003eWhat’s included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eST-R8170 left and right shift\/brake levers with BR-R8170 flat-mount hydraulic disc calipers\u003c\/li\u003e\n\u003cli\u003eRD-R8150 rear and FD-R8150 front derailleurs\u003c\/li\u003e\n\u003cli\u003eFC-R8100 HOLLOWTECH II double crankset in your selected length and ratio\u003c\/li\u003e\n\u003cli\u003eCS-R8101 cassette in your selected ratio\u003c\/li\u003e\n\u003cli\u003eCN-M8100 126-link chain with quick link\u003c\/li\u003e\n\u003cli\u003eBT-DN300 internal rechargeable Di2 battery\u003c\/li\u003e\n\u003cli\u003eEW-EC300 charging cable\u003c\/li\u003e\n\u003cli\u003eEW-SD300 electric wires, 900mm and 1600mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose your setup\u003c\/h2\u003e\u003cp\u003eCrank lengths: \u003cstrong\u003e160, 165, 170, 172.5 or 175mm\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eChainrings: \u003cstrong\u003e46\/36T, 50\/34T or 52\/36T\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eCassette: \u003cstrong\u003e11–30T or 11–34T\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOptional rotors:\u003c\/strong\u003e select no rotors, two 160mm rotors, or a 160mm front \/ 140mm rear pair in the \u003cstrong\u003eCassette and Rotors\u003c\/strong\u003e menu. The Ultegra RT-CL800 CENTER LOCK rotor package includes internal lockrings and adds £80 for the pair. Rotors are included only when selected. Available combinations are shown in the selectors.\u003c\/p\u003e\u003ch2\u003eCompatibility and support\u003c\/h2\u003e\u003cp\u003eRequires a suitable road frame with flat-mount disc brake mounts, compatible front and rear derailleur fittings, and a freehub compatible with your selected Shimano 12-speed road cassette. The 24mm crank spindle needs the correct HOLLOWTECH II-compatible road bottom bracket for your frame. Your frame must also accommodate the internal Di2 battery and derailleur wiring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom bracket sold separately. No power meter included.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFor help choosing gearing or checking compatibility, \u003ca href=\"https:\/\/thebikelab.org\/pages\/contact\"\u003eget in touch\u003c\/a\u003e with your bike’s make, model, year and current setup. The Bike Lab can help you work through the details before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUK delivery only.\u003c\/strong\u003e\u003c\/p\u003e\u003cdiv class=\"product__accordion accordion\"\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"summary__title\"\u003e\u003ch2 class=\"h4 accordion__title\"\u003eSpecification:\u003c\/h2\u003e\u003c\/div\u003e\n\u003csvg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-caret\" viewbox=\"0 0 10 6\"\u003e\u003cpath d=\"M1 1l4 4 4-4\" fill=\"none\" stroke=\"currentColor\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"accordion__content rte\"\u003e\u003cul\u003e\n\u003cli\u003eDrivetrain: Shimano Ultegra R8170, 2×12-speed road\u003c\/li\u003e\n\u003cli\u003eShifting: Di2 electronic; wireless shifters with wired derailleurs and internal battery\u003c\/li\u003e\n\u003cli\u003eLevers: ST-R8170\u003c\/li\u003e\n\u003cli\u003eBrake calipers: BR-R8170, hydraulic disc, 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included\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e","brand":"The Bike Lab","offers":[{"title":"160mm \/ 46\/36T \/ 11-30T · No rotors","offer_id":61212102295882,"sku":null,"price":1249.0,"currency_code":"GBP","in_stock":false},{"title":"160mm \/ 46\/36T \/ 11-34T · No rotors","offer_id":61212102328650,"sku":null,"price":1249.0,"currency_code":"GBP","in_stock":false},{"title":"160mm \/ 50\/34T \/ 11-30T · No rotors","offer_id":61212102361418,"sku":null,"price":1249.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 50\/34T \/ 11-34T · No rotors","offer_id":61212102394186,"sku":null,"price":1249.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 52\/36T \/ 11-30T · No rotors","offer_id":61212102426954,"sku":null,"price":1249.0,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 52\/36T \/ 11-34T · No rotors","offer_id":61212102459722,"sku":null,"price":1249.0,"currency_code":"GBP","in_stock":true},{"title":"165mm \/ 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(+£80)","offer_id":64073416966474,"sku":null,"price":1329.0,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 50\/34T \/ 11-30T · 160+140mm Ultegra rotors (+£80)","offer_id":64073416999242,"sku":null,"price":1329.0,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 50\/34T \/ 11-34T · 160+140mm Ultegra rotors (+£80)","offer_id":64073417032010,"sku":null,"price":1329.0,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 52\/36T \/ 11-30T · 160+140mm Ultegra rotors (+£80)","offer_id":64073417064778,"sku":null,"price":1329.0,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 52\/36T \/ 11-34T · 160+140mm Ultegra rotors (+£80)","offer_id":64073417097546,"sku":null,"price":1329.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/7117\/2170\/files\/shopping.jpg?v=1772216372"},{"product_id":"shimano-105-r7120-12-speed-disc-groupset-mechanical-hydraulic-road-bike-groupset","title":"Shimano 105 R7120 12 Speed Disc Groupset – Mechanical Hydraulic Road Bike Groupset","description":"\u003cp\u003eThe \u003cstrong\u003eShimano 105 R7120 12-speed disc road groupset\u003c\/strong\u003e combines cable-operated 2×12-speed shifting with hydraulic disc braking for everyday road riding, sportives and longer adventures. A choice of compact or mid-compact chainrings and wide-range cassettes lets you tailor the gearing to your riding.\u003c\/p\u003e\u003cp\u003eGetting more enjoyment from your bike doesn’t have to mean choosing the most expensive parts. The Bike Lab can help you make a practical 105 upgrade that fits your budget and riding plans, with personal advice and support from an independent bicycle business.\u003c\/p\u003e\u003ch2\u003eBuilt for the road\u003c\/h2\u003e\u003cp\u003eMechanical Dual Control levers give you familiar, positive gear changes without electronic shifting batteries. The HOLLOWTECH II chainset and 12-speed drivetrain offer versatile gearing, while hydraulic disc brakes provide controlled stopping in changing conditions.\u003c\/p\u003e\u003ch2\u003eWhat’s included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eST-R7120 left and right shift\/brake levers with BR-R7170 flat-mount hydraulic disc calipers\u003c\/li\u003e\n\u003cli\u003eRD-R7100 rear and FD-R7100 front derailleurs\u003c\/li\u003e\n\u003cli\u003eFC-R7100 HOLLOWTECH II double crankset in your selected length and ratio\u003c\/li\u003e\n\u003cli\u003eShimano 12-speed road cassette in your selected ratio\u003c\/li\u003e\n\u003cli\u003eShimano 12-speed chain\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eChoose your setup\u003c\/h2\u003e\u003cp\u003eCrank lengths: \u003cstrong\u003e160, 165, 170, 172.5 or 175mm\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eChainrings: \u003cstrong\u003e50\/34T or 52\/36T\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eCassette: \u003cstrong\u003e11–34T or 11–36T\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBrake rotors are sold separately.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eCompatibility and support\u003c\/h2\u003e\u003cp\u003eRequires a suitable road frame with flat-mount disc brake mounts, compatible front and rear derailleur fittings, and a freehub compatible with your selected Shimano 12-speed road cassette. The 24mm crank spindle needs the correct HOLLOWTECH II-compatible road bottom bracket for your frame. Your frame must support mechanical gear-cable routing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom bracket sold separately. No power meter included.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFor help choosing gearing or checking compatibility, \u003ca href=\"https:\/\/thebikelab.org\/pages\/contact\"\u003eget in touch\u003c\/a\u003e with your bike’s make, model, year and current setup. The Bike Lab can help you work through the details before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUK delivery only.\u003c\/strong\u003e\u003c\/p\u003e\u003cdiv class=\"product__accordion accordion\"\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"summary__title\"\u003e\u003ch2 class=\"h4 accordion__title\"\u003eSpecification:\u003c\/h2\u003e\u003c\/div\u003e\n\u003csvg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-caret\" viewbox=\"0 0 10 6\"\u003e\u003cpath d=\"M1 1l4 4 4-4\" fill=\"none\" stroke=\"currentColor\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"accordion__content rte\"\u003e\u003cul\u003e\n\u003cli\u003eDrivetrain: Shimano 105 R7120, 2×12-speed road\u003c\/li\u003e\n\u003cli\u003eShifting: cable-operated mechanical\u003c\/li\u003e\n\u003cli\u003eLevers: ST-R7120\u003c\/li\u003e\n\u003cli\u003eBrake calipers: BR-R7170, hydraulic disc, flat-mount\u003c\/li\u003e\n\u003cli\u003eRD-R7100 rear derailleur; FD-R7100 front derailleur\u003c\/li\u003e\n\u003cli\u003eCrankset: FC-R7100, HOLLOWTECH II, standard non-power-meter version\u003c\/li\u003e\n\u003cli\u003eCrank lengths: 160, 165, 170, 172.5 or 175mm\u003c\/li\u003e\n\u003cli\u003eChainrings: 50\/34T or 52\/36T\u003c\/li\u003e\n\u003cli\u003eCassette: Shimano 12-speed road, 11–34T or 11–36T\u003c\/li\u003e\n\u003cli\u003eChain: Shimano 12-speed chain\u003c\/li\u003e\n\u003cli\u003eElectronic shifting battery and charger: not required\u003c\/li\u003e\n\u003cli\u003eRotors: sold separately\u003c\/li\u003e\n\u003cli\u003eBottom bracket: suitable Shimano road 24mm HOLLOWTECH II type, sold separately\u003c\/li\u003e\n\u003cli\u003ePower meter: not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e","brand":"The Bike Lab","offers":[{"title":"160mm \/ 50\/34T \/ 11-34T","offer_id":61299419316554,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":false},{"title":"160mm \/ 50\/34T \/ 11-36T","offer_id":61299419349322,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":false},{"title":"160mm \/ 52\/36T \/ 11-34T","offer_id":61299419382090,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 52\/36T \/ 11-36T","offer_id":61299419414858,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"165mm \/ 50\/34T \/ 11-34T","offer_id":61299419447626,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"165mm \/ 50\/34T \/ 11-36T","offer_id":61299419480394,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"165mm \/ 52\/36T \/ 11-34T","offer_id":61299419513162,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"165mm \/ 52\/36T \/ 11-36T","offer_id":61299419545930,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"170mm \/ 50\/34T \/ 11-34T","offer_id":61299419578698,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"170mm \/ 50\/34T \/ 11-36T","offer_id":61299419611466,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"170mm \/ 52\/36T \/ 11-34T","offer_id":61299419644234,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"170mm \/ 52\/36T \/ 11-36T","offer_id":61299419677002,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"172.5mm \/ 50\/34T \/ 11-34T","offer_id":61299419709770,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"172.5mm \/ 50\/34T \/ 11-36T","offer_id":61299419742538,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"172.5mm \/ 52\/36T \/ 11-34T","offer_id":61299419775306,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"172.5mm \/ 52\/36T \/ 11-36T","offer_id":61299419808074,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 50\/34T \/ 11-34T","offer_id":61299419840842,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 50\/34T \/ 11-36T","offer_id":61299419873610,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 52\/36T \/ 11-34T","offer_id":61299419906378,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 52\/36T \/ 11-36T","offer_id":61299419939146,"sku":null,"price":499.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/7117\/2170\/files\/132704_shimano_105_r7120_disc_groupset_12_speed.jpg?v=1773092255"},{"product_id":"shimano-grx-rx827-di2-1x12-wireless-gravel-groupset","title":"Shimano GRX RX827 Di2 1x12 Wireless Gravel Groupset","description":"\u003cp\u003eThe \u003cstrong\u003eShimano GRX RX827 Di2 1×12 wireless gravel groupset\u003c\/strong\u003e combines electronic shifting, hydraulic disc braking and wide-range 10–51T gearing for gravel rides, racing and adventures further from the tarmac. A single chainring keeps gear selection straightforward, with three sizes available to suit your riding.\u003c\/p\u003e\n\u003cp\u003eThere’s a lot of freedom in a bike that can take the long way home. The Bike Lab can help you put together a GRX setup for the routes and adventures you have in mind, with personal advice on gearing and compatibility from an independent bicycle business. Your order helps keep that individual approach to bike building alive.\u003c\/p\u003e\n\u003ch2\u003eBuilt for gravel\u003c\/h2\u003e\n\u003cp\u003eThe wireless RX827 rear derailleur uses Shimano’s SHADOW ES design to keep its profile tucked in, with a chain stabiliser for rough ground and automatic recovery after impacts. Its removable battery sits on the derailleur, so there’s no internal Di2 battery or shifting wire to route through the frame.\u003c\/p\u003e\n\u003cp\u003eGravel-specific lever ergonomics give you a secure hand position on uneven surfaces, while BR-RX820 hydraulic disc brakes offer controlled braking on loose descents. The right lever controls shifting; the supplied left lever is brake-only. Compatible shift settings can be personalised in Shimano’s E-TUBE PROJECT Cyclist app.\u003c\/p\u003e\n\u003ch2\u003eWhat’s included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGRX FC-RX820-1 HOLLOWTECH II single crankset in your selected length and chainring size\u003c\/li\u003e\n\u003cli\u003eShimano 12-speed 10–51T MICRO SPLINE cassette\u003c\/li\u003e\n\u003cli\u003eShimano 12-speed chain\u003c\/li\u003e\n\u003cli\u003eGRX RD-RX827-SGS wireless Di2 rear derailleur\u003c\/li\u003e\n\u003cli\u003eGRX ST-RX825 right shift\/brake lever\u003c\/li\u003e\n\u003cli\u003eGRX BL-RX825 left brake lever\u003c\/li\u003e\n\u003cli\u003eBR-RX820 front and rear hydraulic disc brake calipers\u003c\/li\u003e\n\u003cli\u003eBT-DN320 removable derailleur battery\u003c\/li\u003e\n\u003cli\u003eEC-DN100 battery charger\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoose your setup\u003c\/h2\u003e\n\u003cp\u003eCrank lengths: \u003cstrong\u003e160, 165, 170, 172.5 or 175mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eChainring: \u003cstrong\u003e42T, 44T or 46T\u003c\/strong\u003e, paired with a \u003cstrong\u003e10–51T cassette\u003c\/strong\u003e. A smaller chainring favours lower climbing gears; a larger ring shifts the overall gearing higher.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional rotors:\u003c\/strong\u003e choose no rotors, two 160mm rotors, or a 160mm front \/ 140mm rear pair using the rotor selector. Rotors are included only when a rotor option is selected.\u003c\/p\u003e\n\u003ch2\u003eCompatibility and support\u003c\/h2\u003e\n\u003cp\u003eRequires a \u003cstrong\u003eMICRO SPLINE freehub\u003c\/strong\u003e, suitable flat-mount disc brake mounts and a compatible rear derailleur hanger. The 24mm crank spindle needs the correct HOLLOWTECH II-compatible bottom bracket for your frame. Check chainring clearance and, when selecting rotors, your hub mounting standard and the rotor sizes approved for your frame and fork.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBottom bracket sold separately. No power meter included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor help choosing your gearing or checking an existing bike, \u003ca href=\"https:\/\/thebikelab.org\/pages\/contact\"\u003eget in touch\u003c\/a\u003e with its make, model, year and current setup. The Bike Lab can help you work through the details before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUK delivery only.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"product__accordion accordion\"\u003e\u003cdetails\u003e\u003csummary\u003e\u003cdiv class=\"summary__title\"\u003e\u003ch2 class=\"h4 accordion__title\"\u003eSpecification:\u003c\/h2\u003e\u003c\/div\u003e\n\u003csvg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-caret\" viewbox=\"0 0 10 6\"\u003e\u003cpath d=\"M1 1l4 4 4-4\" fill=\"none\" stroke=\"currentColor\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"accordion__content rte\"\u003e\u003cul\u003e\n\u003cli\u003eDrivetrain: Shimano GRX RX827 Di2, 1×12-speed\u003c\/li\u003e\n\u003cli\u003eShifting: fully wireless electronic Di2\u003c\/li\u003e\n\u003cli\u003eRear derailleur: RD-RX827-SGS, SHADOW ES, for 10–51T cassette\u003c\/li\u003e\n\u003cli\u003eRight lever: ST-RX825 Di2 shift\/brake lever\u003c\/li\u003e\n\u003cli\u003eLeft lever: BL-RX825 brake-only lever\u003c\/li\u003e\n\u003cli\u003eBrakes: BR-RX820 hydraulic disc calipers, flat-mount\u003c\/li\u003e\n\u003cli\u003eCrankset: FC-RX820-1 HOLLOWTECH II, no power meter\u003c\/li\u003e\n\u003cli\u003eCrank lengths: 160, 165, 170, 172.5 or 175mm\u003c\/li\u003e\n\u003cli\u003eChainring options: 42T, 44T or 46T\u003c\/li\u003e\n\u003cli\u003eCassette: Shimano 12-speed, 10–51T\u003c\/li\u003e\n\u003cli\u003eFreehub required: MICRO SPLINE\u003c\/li\u003e\n\u003cli\u003eChain: Shimano 12-speed\u003c\/li\u003e\n\u003cli\u003eBattery: BT-DN320, included\u003c\/li\u003e\n\u003cli\u003eCharger: EC-DN100, included\u003c\/li\u003e\n\u003cli\u003eRotors: optional two 160mm, or 160mm front \/ 140mm rear; supplied only when selected\u003c\/li\u003e\n\u003cli\u003eBottom bracket: suitable Shimano 24mm HOLLOWTECH II-compatible type, sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e","brand":"The Bike Lab","offers":[{"title":"160mm \/ 42T \/ NO ROTORS","offer_id":61975253745994,"sku":null,"price":949.99,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 42T \/ 2 x 160mm","offer_id":61975258235210,"sku":null,"price":999.99,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 42T \/ 1 x 160mm 1 x 140mm","offer_id":61975258267978,"sku":null,"price":999.99,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 44T \/ NO ROTORS","offer_id":61975253778762,"sku":null,"price":949.99,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 44T \/ 2 x 160mm","offer_id":61975258300746,"sku":null,"price":999.99,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 44T \/ 1 x 160mm 1 x 140mm","offer_id":61975258333514,"sku":null,"price":999.99,"currency_code":"GBP","in_stock":true},{"title":"160mm \/ 46T \/ NO 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140mm","offer_id":61975259119946,"sku":null,"price":999.99,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 46T \/ NO ROTORS","offer_id":61975254204746,"sku":null,"price":949.99,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 46T \/ 2 x 160mm","offer_id":61975259152714,"sku":null,"price":999.99,"currency_code":"GBP","in_stock":true},{"title":"175mm \/ 46T \/ 1 x 160mm 1 x 140mm","offer_id":61975259185482,"sku":null,"price":999.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/7117\/2170\/files\/shimano-grx-rx825-di2-1x12-speed-wireless-groupset-p42008-64279_medium_1bcfc2c2-2214-4686-bd5b-2aa345ef563f.jpg?v=1780345826"},{"product_id":"shimano-105-r7170-di2-12-speed-road-groupset","title":"Shimano 105 R7170 Di2 2×12 Complete Road Groupset – Electronic Shifting \u0026 Hydraulic Disc Brakes","description":"\u003cp\u003eThe \u003cstrong\u003eShimano 105 R7170 Di2 2×12 road groupset\u003c\/strong\u003e brings electronic shifting and hydraulic disc braking to club rides, sportives and everyday adventures. With a choice of chainring combinations and cassette ranges, you can build a setup that feels comfortable on familiar roads and gives you lower gears for hillier days.\u003c\/p\u003e\n\u003cp\u003eMoving to electronic shifting can give a familiar bike a fresh feel. The Bike Lab can help you work out what’s worth keeping and where a change will make a difference, with personal advice throughout your upgrade. Every order supports an independent bicycle business built around keeping good bikes riding well.\u003c\/p\u003e\n\u003ch2\u003eBuilt for the road\u003c\/h2\u003e\n\u003cp\u003eDi2 delivers precise, repeatable gear changes at the touch of a button. The shifters communicate wirelessly with the rear derailleur, while both derailleurs connect to an internal rechargeable battery. This keeps gear cables out of the cockpit while providing a shared power supply for the drivetrain.\u003c\/p\u003e\n\u003cp\u003eAutomatic front-derailleur trim helps reduce chain rub as you move through the cassette. Shimano’s E-TUBE PROJECT Cyclist app lets you personalise compatible button functions and choose manual, semi-synchronised or synchronised shifting.\u003c\/p\u003e\n\u003cp\u003eAdjustable lever reach helps you find a comfortable hand position, while Shimano 105 hydraulic disc brakes provide controlled braking on descents and in changing conditions.\u003c\/p\u003e\n\u003ch2\u003eWhat’s included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eShimano 105 ST-R7170 left and right Di2 shift\/brake levers\u003c\/li\u003e\n\u003cli\u003eShimano 105 BR-R7170 front and rear hydraulic disc brake calipers\u003c\/li\u003e\n\u003cli\u003eShimano 105 RD-R7150 12-speed rear derailleur\u003c\/li\u003e\n\u003cli\u003eShimano 105 FD-R7150 front derailleur\u003c\/li\u003e\n\u003cli\u003eShimano 105 FC-R7100 HOLLOWTECH II double crankset\u003c\/li\u003e\n\u003cli\u003eShimano 12-speed cassette in your selected ratio\u003c\/li\u003e\n\u003cli\u003eCompatible Shimano 12-speed chain\u003c\/li\u003e\n\u003cli\u003eBT-DN300 internal rechargeable Di2 battery\u003c\/li\u003e\n\u003cli\u003eEW-EC300 charging cable\u003c\/li\u003e\n\u003cli\u003eTwo EW-SD300 electric wires\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoose your setup\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCrank lengths:\u003c\/strong\u003e 160, 165, 170, 172.5 or 175mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eChainrings:\u003c\/strong\u003e 50\/34T or 52\/36T.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCassette:\u003c\/strong\u003e 11–34T or 11–36T.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOptional rotors:\u003c\/strong\u003e choose no rotors, two 160mm rotors, or a 160mm front \/ 140mm rear pair. Rotors are included only when a rotor option is selected.\u003c\/p\u003e\n\u003ch2\u003eCompatibility and support\u003c\/h2\u003e\u003cp\u003eRequires a suitable road frame with flat-mount disc brake mounts, compatible front and rear derailleur fittings, and a freehub suitable for the selected Shimano 12-speed road cassette. Your frame must accommodate the internal Di2 battery and derailleur wiring.\u003c\/p\u003e\u003cp\u003eThe crankset uses a 24mm spindle and requires the correct HOLLOWTECH II-compatible road bottom bracket for your frame. Rotor mounting and permitted rotor sizes must also suit your wheels, frame and fork.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBottom bracket sold separately. No power meter included.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFor help choosing gearing or checking your current bike, \u003ca href=\"https:\/\/thebikelab.org\/pages\/contact\"\u003eget in touch\u003c\/a\u003e with its make, model, year and existing setup. The Bike Lab can help you work through the details before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUK delivery only.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"product__accordion accordion\"\u003e\u003cdetails\u003e\u003csummary\u003e\u003ch2 class=\"h4 accordion__title\"\u003eSpecification:\u003c\/h2\u003e\u003c\/summary\u003e\u003cdiv class=\"accordion__content rte\"\u003e\u003cul\u003e\n\u003cli\u003eDrivetrain: Shimano 105 Di2, 2×12-speed road\u003c\/li\u003e\n\u003cli\u003eShifting: electronic Di2 with wireless shifters and wired derailleurs\u003c\/li\u003e\n\u003cli\u003eShift\/brake levers: ST-R7170\u003c\/li\u003e\n\u003cli\u003eBrake calipers: BR-R7170 hydraulic disc, flat-mount\u003c\/li\u003e\n\u003cli\u003eRear derailleur: RD-R7150\u003c\/li\u003e\n\u003cli\u003eFront derailleur: FD-R7150\u003c\/li\u003e\n\u003cli\u003eCrankset: FC-R7100 HOLLOWTECH II, without power meter\u003c\/li\u003e\n\u003cli\u003eCrank lengths: 160, 165, 170, 172.5 or 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