Shimano Ultegra R8100 Di2 Road Groupset

description

A complete Shimano Ultegra R8100 Di2 12-speed disc-brake road groupset: wireless Di2 shifters with hydraulic disc brakes, wired Di2 derailleurs and an internal battery. This package covers everything needed to build a 2x12 Ultegra drivetrain and brakes; the price is the sum of each component's US retail price.

What's included

• ST-R8170 Di2 dual control lever + BR-R8170 hydraulic disc caliper, left/front – $585.00
• ST-R8170 Di2 dual control lever + BR-R8170 hydraulic disc caliper, right/rear – $585.00
• FD-R8150 Di2 front derailleur (braze-on) – $295.00
• RD-R8150 Di2 rear derailleur – $470.00
• FC-R8100 Hollowtech II crankset, 2x12 – $365.00
• CS-R8101 HYPERGLIDE+ 12-speed cassette – $130.00
• CN-M8100 12-speed chain – $65.00
• RT-CL800 Center Lock disc rotors, 160 mm (2 × $70.00) – $140.00
• BT-DN300 internal Di2 battery – $220.00
• EW-EC300 Di2 charging cable – $64.00
• EW-SD300 E-TUBE wires (2 × $31.99; lengths matched to your frame) – $63.98
• Total: $2,982.98

Specifications

• Series: Ultegra R8100, 2x12-speed
• Shifting: Di2 electronic; wireless shifters (coin-cell powered), wired derailleurs
• Brakes: Hydraulic disc, flat mount
• Crankset: Hollowtech II; chainrings 52-36T or 50-34T (46-36T available on request)
• Cassette: 11-30T or 11-34T
• Bottom bracket and pedals: Not included (depends on your frame)
• Power meter: Not included. Ask us for a quote on the FC-R8100-P power meter crankset.

Specs and photos are from Shimano's website (bike.shimano.com). Shimano does not publish US prices on its site, so each component is priced at the highest regular (non-sale) price advertised by authorized US retailers (Trek, Performance Bicycle, Bike Tires Direct, REI), checked October 2026. Manufacturers can change specs without notice; ask us to confirm compatibility before you order.

How ordering works

• In-store pickup. Orders are picked up at Narrow Path Cycles, 980 Rowland Street, Clarkston, GA. If you need your order delivered somewhere else, contact us first; any shipping you arrange is at your own cost.
• Subject to availability. Parts are ordered from the manufacturer or distributor, and every order is subject to availability. Items can be delayed, backordered or discontinued. We'll contact you after you order to confirm availability and timing.
• Installation. Ask us about installation and compatibility with your bike; installation is quoted separately.
• Restocking fee. Returns are subject to a restocking fee, depending on what the manufacturer allows us to return. Special-order items may not be returnable.
• Pickup verification. Bring a photo ID and the card used for your order when you pick up.