EV-FC-7950-2878
SI-1KY0A
This sleek aerodynamic Hollowtech II Dura-Ace compact crankset features significant weight savings and increased rigidity through the use of a 20% stiffer chainring, resulting in optimal shifting & power transfer.
Technical Documents
Features
- Compact gear ratio | Better performance alternative
- Thin-walled forged aluminum crank | Lightweight & Strong
- Hollow chainring | Lightweight & rigid
- New tooth design | Improved chain contact for power efficiency
Specifications
| Model Number | FC-7950 |
| Series | DURA-ACE |
| Crank Construction | HOLLOWTECH II |
| Cassette Compatibility | 10-speed |
| Chain Compatibility | Super Narrow HG for 10-speed |
| Hyperdrive | yes |
| Dual SIS | yes |
| Reinforced Spider | yes |
| Chainring Sets | 50-34T |
| Bolt Circle Diameter | 110mm |
| Crank Arm Length | 165/167.5/170/172.5/175/177.5/180 mm |
| Crank Arms | forged aluminum/anodized |
| Chainrings | aluminum/anodized |
| Chain Guard | no |
| Bottom Bracket | SM-BB7900 |
| Chain Line | 43.5mm |
| Spindle Length | - |
| BB Shell Width | 68/70mm |
| Average Weight | 725g including BB |