Shimano FC-R8100 Front Crankset Ultegra 50-34T 172.5mm
Shimano FC-R8100 Front Crankset Ultegra 50-34T 172.5mm
The Shimano FC-R8100 Ultegra Front Crankset 50-34 172.5mm is a premium 12-speed road crankset engineered for smooth shifting, lightweight performance, and efficient power transfer. Developed as part of Shimano’s advanced Ultegra R8100 groupset, the FC-R8100 delivers professional-level drivetrain performance for road cyclists seeking speed, reliability, and refined pedalling efficiency.
Featuring a 50-34T mid-compact chainring combination and 172.5mm crank arms, this crankset provides an excellent balance between climbing capability and high-speed performance. Shimano’s HOLLOWTECH II and HOLLOWGLIDE technologies reduce overall weight while maintaining exceptional stiffness for responsive acceleration and precise front shifting under load.
Ideal for racing, endurance riding, and high-performance road cycling, the FC-R8100 crankset combines advanced engineering with dependable Shimano durability.
Features
12-Speed Road Performance:
Designed specifically for Shimano 12-speed road drivetrains with smooth and precise front shifting.
50-34T Mid-Compact Chainring Configuration:
Offers a balanced gearing setup suitable for climbing and fast road riding.
172.5mm Crank Arm Length:
Provides a versatile fit option preferred by many road cyclists for efficient power delivery.
HOLLOWTECH II Construction:
Lightweight hollow forged crank arms maximise stiffness while reducing weight.
HOLLOWGLIDE Technology:
Optimised hollow chainring design enhances rigidity and shifting performance.
Efficient Power Transfer:
Engineered for an ideal balance of stiffness, durability, weight, and pedalling efficiency.
Precision Shimano Engineering:
Delivers reliable shifting performance under demanding riding conditions.
Road Cycling Optimised:
Suitable for racing, endurance riding, and performance-focused training.
Specifications
| Specification | Details |
| Model | FC-R8100 |
| Series | Shimano Ultegra |
| Speed Compatibility | 2 x 12-Speed |
| Chainring Combination | 50-34T |
| Crankarm Length | 172.5mm |
| Compatible Chain | Hg 12-Speed |
| Chain Line | 44.5mm |
| P.C.D | 110mm |
| Q-Factor | 148mm |
| Crank Construction | HOLLOWTECH II |
| Chainring Technology | HOLLOWGLIDE |
| Bottom Bracket Compatibility | SM-BBR60 / SM-BB72-41B |
| Colour | Series Black |
| Average Weight | Approx. 711g |
In the Box
- 1 x Shimano FC-R8100 Ultegra Front Crankset 52-36 172.5mm
- Crank Fixing Hardware
(IFCR8100DX04)
| SKU | IFCR8100DX04 |
| Brand | Shimano |