Unsteady or uneven pedal stroke? Not with the PowerTrac Elliptical chainrings from Wolf Tooth. The design comes with a slightly less oval ring (10%) and less aggressive timing (112 °). The change in pedal travel due to an oval chainring is not noticeable to most riders, but still offers tremendous benefits.
|Product Name:||Wolf Tooth Elliptical PowerTrac Chainring - 107mm - SRAM|
|shifting system:||9-speed, 10-speed, 11-speed, 12-speed|
|Road - bolt circle diameter:||107mm|
|chainring version:||Narrow-Wide (1-speed), oval|