Hollowtech II provides the best balance of stiffness, strength, weight, & rotating performance. Key
Features: Optimum power transfer Rider tuned wide range gearing Specifications: Model Number
- FC-5800 Series
- 105 Crank Construction
- HOLLOWTECH II Cassette Compatibility
- 11 Chainring Sets
- 50-34T 52-36T 53-39T Crank Arm Length
- 165/ 170/ 172.5 / 175 Bottom Bracket
- SM-BBR60 / SM-BB72-41B Chain Line
- 43.5 BB Shell Width
- 68 / 70