Safe, efficient design - Integrated machining provides consistent fit and reliable performance for long rides. Enhanced tooth profiles with plus/minus tooth form improve chain engagement and overall drive efficiency. Smooth operation and reduced wear - The tooth thickness is machined to mesh seamlessly with both inner and outer chain links, reducing friction and noise and helping to extend chain life. Wide compatibility - Compatible with most 110/130 BCD cranksets. Please verify your crank’s BCD and the required number of teeth before purchase. Sizes and options - Size: 110/130 BCD - Teeth options (splines): 36T, 38T, 40T, 42T, 44T, 46T, 48T, 50T, 52T, 54T, 56T, 58T, 60T Use scenarios - Road cycling upgrades for smoother, quieter shifting on daily commutes - Long-distance rides and touring where consistent performance matters - Upgrading a standard crankset to improve chain retention and drivetrain efficiency on compatible bikes