Technical Documents
Specifications
| Model Number | FC-R550 |
| Series | Non-Series |
| Crank Construction | 2-Piece |
| Cassette Compatibility | 10-speed |
| Chain Compatibility | Super Narrow HG for 10-speed |
| Hyperdrive | yes |
| Dual SIS | yes |
| Reinforced Spider | - |
| Chainring Sets | 53-39/52-39/50-39T |
| Bolt Circle Diameter | 130mm |
| Crank Arm Length | 165/170/172.5/175mm |
| Crank Arms | aluminum/anodized |
| Chainrings | aluminum/anodized |
| Chain Guard | no |
| Bottom Bracket | SM-FC4500 |
| Chain Line | 43.5mm |
| Spindle Length | - |
| BB Shell Width | 68/70mm |
| Average Weight |