Shimano Ultegra
Shimano Ultegra FC-R8100 Ultegra 12-speed double chainset; 46 / 36T 165 mm
Specifications
| Brand | Shimano Ultegra |
|---|---|
| Series | Ultegra |
| Category | Chainsets & Cranks |
| Speed | 12 Speed |
| Discipline | Road |
| Length | 165mm |
| Ratio | 50/34T, 52/36T, 46/36T |
| Crankarm Length | 160mm, 165mm, 170mm, 172.5mm, 175mm |
| SKU | FCR8100A66 |
Description
- The HollowTech II 12-speed Ultegra chainset offers an ideal balance of light weight and stiffness; making it the perfect choice for both enthusiast and competitive riders
- HollowGlide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance; even under high load
- The chainring teeth have been developed to work in conjunction with 12-speed HG chains for increased contact to provide greater efficiency and improved power transfer
- Industry leading HollowTech II cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight
- Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with O.L.D. 135 / 142 mm
- A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines
- HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
- HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)
