{"product_id":"shimano-ultegra-r8170-di2-12-speed-power-meter-groupset-road-disc-brake","title":"Shimano Ultegra R8170 Di2 12-Speed Power Meter Groupset Disc Brake","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003ePro-Level Shifting. Real Power Data. One Complete Groupset.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003ePower is the language of modern training — and this groupset speaks it natively. The Shimano Ultegra R8100 Di2 12-speed power meter groupset combines Shimano's race-proven electronic drivetrain with the FC-R8100-P dual-sided power meter crankset, factory-integrated rather than bolted on afterwards. No third-party pods, no retrofit compromises: accurate left\/right power measurement built into the heart of your drivetrain.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAround it sits the full Ultegra R8100 Di2 package — the groupset that shares its shifting speed, semi-wireless architecture and Synchronized Shift intelligence with Dura-Ace. Wireless ST-R8170 dual control levers keep your cockpit clean, hydraulic disc brakes deliver dependable stopping in all conditions, and 12-speed gearing gives you tighter jumps exactly where your intervals live.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eWhether you're chasing FTP gains, pacing a fondo or racing crits, every component listed below ships in the box — derailleurs, power meter crankset, cassette, chain, levers, calipers, rotors, battery, charger and Di2 wires.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhy riders training with power choose this groupset:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eGenuine Shimano dual-sided power meter — true left\/right balance, not doubled single-leg data\u003c\/li\u003e\n\u003cli\u003eBluetooth and ANT+ connectivity pairs with your head unit and training apps\u003c\/li\u003e\n\u003cli\u003eThe same Di2 shifting speed and Synchronized Shift brain as Dura-Ace\u003c\/li\u003e\n\u003cli\u003eWireless shifters and semi-wireless setup for a clean, modern cockpit\u003c\/li\u003e\n\u003cli\u003eHydraulic disc braking with confident modulation in all weather\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003eWhat's Included — Complete Contents\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eEverything listed below is included in this groupset:\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDrivetrain — included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e1× Shimano Ultegra RD-R8150 Di2 12-speed rear derailleur\u003c\/li\u003e\n\u003cli\u003e1× Shimano Ultegra FD-R8150 Di2 front derailleur\u003c\/li\u003e\n\u003cli\u003e1× Shimano Ultegra FC-R8100-P dual-sided power meter crankset with charging cable (choose chainring and crank length at checkout)\u003c\/li\u003e\n\u003cli\u003e1× Shimano Ultegra CS-R8100 12-speed cassette (choose 11-30T or 11-34T at checkout)\u003c\/li\u003e\n\u003cli\u003e1× Shimano CN-M8100 12-speed chain\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eBraking \u0026amp; Shifting — included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e1 pair Shimano Ultegra ST-R8170 Di2 hydraulic disc dual control levers (left + right, wireless)\u003c\/li\u003e\n\u003cli\u003e2× Shimano Ultegra BR-R8170 hydraulic disc calipers (front + rear)\u003c\/li\u003e\n\u003cli\u003e2× Shimano RT-CL800 rotors with lockrings (front + rear) — choose your size combination at checkout: 160mm\/160mm, 160mm front with 140mm rear, or 140mm\/140mm\u003c\/li\u003e\n\u003cli\u003e2× Shimano SM-BH90 hydraulic hoses (front + rear) — supplied pre-bled and attached to the calipers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eElectronics — included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e1× Shimano BT-DN300 internal Di2 battery\u003c\/li\u003e\n\u003cli\u003e1× Shimano EW-EC300 charging cable\u003c\/li\u003e\n\u003cli\u003e2× Shimano EW-SD300 Di2 E-Tube wires (battery to front derailleur + battery to rear derailleur) — supplied in suitable lengths for a seatpost-mounted battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eNot included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eBottom bracket — sold separately to suit your frame standard (press-fit or threaded)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGood to know\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003e2×12-speed with semi-wireless architecture — the levers connect wirelessly, so no cockpit wiring is required\u003c\/li\u003e\n\u003cli\u003ePower meter is rechargeable with the included cable and updates via Shimano's app\u003c\/li\u003e\n\u003cli\u003eFull, Semi-Synchronized and manual shift modes configurable via the E-Tube app\u003c\/li\u003e\n\u003cli\u003eHydraulic brakes arrive pre-bled with hoses attached to the calipers — no bleeding required for a standard installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"160mm | 50-34T \/ 11-30T \/ 160-160","offer_id":53545757278497,"sku":null,"price":1699.0,"currency_code":"GBP","in_stock":true},{"title":"160mm | 50-34T \/ 11-30T \/ 160-140","offer_id":53545757311265,"sku":null,"price":1699.0,"currency_code":"GBP","in_stock":true},{"title":"160mm | 50-34T \/ 11-30T \/ 140-140","offer_id":53545757344033,"sku":null,"price":1699.0,"currency_code":"GBP","in_stock":true},{"title":"160mm | 50-34T \/ 11-30T \/ NA","offer_id":53545757376801,"sku":null,"price":1639.0,"currency_code":"GBP","in_stock":true},{"title":"160mm | 50-34T \/ 11-34T \/ 160-160","offer_id":53545757409569,"sku":null,"price":1699.0,"currency_code":"GBP","in_stock":true},{"title":"160mm | 50-34T \/ 11-34T \/ 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