Allied ALFA Ultegra R8100 Di2 2025
2025 Road
Estimate price |
9,195$
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Groupset Ultegra, Ultegra Di2 -
Suspension Rigid -
Drivetrain 2 × 12 Electronic -
Brakes Shimano Dura-Ace Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Drivetrain
Rear Derailleur
Shimano Ultegra RD-R8150 Di2
Front Derailleur
Shimano Ultegra FD-R8150 Di2
Shift Levers
Shimano Ultegra ST-R8170 Di2
Cassette
Shimano Ultegra CS-R8100 11-30
Crank
Shimano Ultegra FC-R8100 52/36
Bottom Bracket
Shimano Ultegra SM-BBR60
Chain
Shimano XT CN-M8100
Wheels
Rims
Zipp 303 Firecrest Tubeless Disc-Brake
Tires
Vittoria Corsa N.EXT TLR
Brakes
Brakes
Shimano Ultegra BR-R9170
Cockpit
Stem
ALLIED Integrated
Handlebar
Black Inc. Carbon
Seat
Saddle
Selle Italia Novus Boost
Seatpost
ALLIED ALFA
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | 48cm | 52cm | 54cm | 56cm | 58cm | 61cm |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.373 mm | 1.384 mm | 1.414 mm | 1.439 mm | 1.473 mm | 1.512 mm |
| Bottom Bracket Height | 263 mm | 263 mm | 263 mm | 263 mm | 263 mm | 263 mm |
| Front Center | 569 mm | 573 mm | 585 mm | 594 mm | 609 mm | 622 mm |
| Rake | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 64 mm | 65 mm | 58 mm | 55 mm | 55 mm | 55 mm |
| Stack | 515 mm | 530 mm | 550 mm | 570 mm | 595 mm | 620 mm |
| Reach | 375 mm | 383 mm | 389 mm | 396 mm | 404 mm | 410 mm |
| Top Tube Length | 523 mm | 535 mm | 547 mm | 565 mm | 580 mm | 594 mm |
| Seat Tube Angle | 74 ° | 74 ° | 74 ° | 73.5 ° | 73.5 ° | 73.5 ° |
| Seat Tube Length | 440 mm | 490 mm | 510 mm | 530 mm | 560 mm | 585 mm |
| Head Tube Angle | 72 ° | 72.5 ° | 73 ° | 73.5 ° | 73.5 ° | 73.5 ° |
| Head Tube Length | 109 mm | 121 mm | 142 mm | 161 mm | 187 mm | 214 mm |
| Chainstay Length | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 968 mm | 972 mm | 984 mm | 993 mm | 1008 mm | 1021 mm |
| Bottom Bracket Drop | 73 mm | 73 mm | 73 mm | 73 mm | 73 mm | 73 mm |
| Standover Height | 750 mm | 780 mm | 780 mm | 800 mm | 830 mm | 855 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 |