Size (Mass +/-1g): | 34T (30g), 36T (36g), 38T (41g), 50T (122g), 52T (135g) |
Color | Black, Red, Grey (inner ring black only) Bolts are available in black only |
Compatibility | Shimano Dura-Ace 7950, Ultegra 6750, Shimano 105- 5750, Tiagra 4650, FSA, Rotor 3D & 3D+, S-works and many more older cranks. Also fits Sram Force and Red but NOT compatible with Sram cranks that have 1 hidden chainring bolt (Force22, Red22). Compatible with Di2 |
IMPORTANT | If you currently use 53/39T chainrings you have 130BCD cranks (not 110bcd). In this case please look at our 130BCD chainrings as you will not be able to use anything smaller than 53/39T. |
BOLTS | For Outer chainring please order Long bolts Changing Inner chainring to oval only? use original bolts |
Material & Finish | cnc machined 7075 Txxx Aluminum. Long-lasting construction, type II anodizing |
Ovality | Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 38T- 11.4%, 50/52 - 10.3% ; Timing of 108 -109.5° after TDC (top dead center) - Ideal for road climbing. Patent Pending |
