Shimano Ultegra FC-R8100 12-Speed Crankset - 50/34T
The Shimano Ultegra FC-R8100 12-Speed crankset with 50/34T chainrings cuts down on weight while maintaining the front-shifting precision and transmission efficiency Shimano riders know and love.
- Optimal balance of stiffness, strength, weight and rotational performance
- HollowGlide structure minimizes weight while maintaining strength for better power transfer and quicker, more precise front shifting
Imported.
View the Shimano Ultegra Product LineView all Shimano Bike Cranksets| Best Use | Road Cycling |
|---|---|
| Material(s) | Spindle: steel; chainrings: aluminum |
| Weight | 700 grams |
| Crankarm Length | 170 MM: 170 millimeters 172.5 MM: 172.5 millimeters |
| Q Factor | 148 |
| Bottom Bracket Compatibility | Shimano Hollowtech II |
| Bolt Circle Diameter | 110 millimeters |
| Chainring Sizes | 50/34T |
| Included Components | Chainring |
| Number of Chainrings | 2 Chainrings |
| Spindle Diameter | 24 millimeters |
| Crankarm Material | Aluminum |
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Great customer service from REI, not warehouse.
The product itself is excellent, but warehouse quality control really dropped the ball. I was quite disappointed when the crankset arrived used (dirt and scratches from prior use) with mismatched R8000 cranks, not 8100. Telephone customer service was excellent and is shipping me a replacement.