For Outer chainring please order Long bolts. Use original bolts if changing Inner ring only.
Material & Finish
CNC machined 7075 Txxx Aluminum with hard Type II anodizing
Ovality
Optimized to each size separately. 34T- 6.5% ; 36T- 11.4%, 50/52 10.3% ; Timing of 108 -109.5° after TDC (top dead center) Ideal for road climbing. Patent Pending.