More power? Check. Better traction? Absolutely. Less shifting? Yeah. Funky irregular pedal stroke? Not with Wolf Tooth PowerTrac Elliptical™ (PTE) chainrings. Our exclusive design means a slightly less ovalized ring (10%) with less aggressive timing (112°) than competitors' versions; any change to your pedal stroke is imperceptible to most riders, but they still provide the inherent POWER and TRACTION benefits of oval chainrings.

It's like having two chainrings in one! With PowerTrac elliptical rings, the largest diameter section of the ring engages with the chain at the optimal point on the downstroke, or "Power Zone", - between 1-5 and 7-11 on a clock face - to take advantage of your body's natural biomechanical POWER: For example, in this section, a 34t PTE ring is equivalent to a 36t round ring. Similarly, in the "recovery zone" (11-1 and 5-7), the smallest section of the PTE ring engages, maximising EFFICIENCY in the weakest part of the pedal stroke; here the 34t PTE ring is equivalent to a 32t round ring.

In addition, the above provides smoother and more efficient pedal rotation, which means better TRACTION. More stable torque on the rear wheel means less slipping in the "power zone", whilst pedalling is easier during the "recovery zone", allowing you to maintain your momentum.

Compatibility

• Any Race Face Cinch™ crankset (including Next SL, Sixc, Turbine, Aeffect)
• Standard (142mm rear hub spacing) and Boost (148mm hub spacing) offsets are available. 
• Wolf Tooth's patented Drop-Stop® wide/narrow tooth profile for ultimate chain retention and mud clearance capability.
• For 1x9, 1x10, 1x11 and 1x12 drivetrains (including SRAM Eagle)
• If you're using a 9-speed drivetrain, use a 10-speed chain (shifts and works well on a 9-speed drivetrain and fits more closely to the ring for better chain retention).
• Maximum diameter is that of a chainring 2t larger than the size you order (so ensure there is adequate bottom bracket clearance!)
• 49mm chainline (standard), 52mm (Boost)
• Available in two different tooth profiles for optimal performance depending on your chain type. Use Drop-Stop ST for use with 12-speed Shimano Hyperglide+ chains. Use Drop-Stop A for all 9, 10 and 11 speed chains or 12-speed SRAM Eagle, KMC, Connex or Wippermann chains.

Technical specifications

Weight: 28t • 54g | 30t • 58g | 32t • 63g | 34t • 69g | 36t • 72g | 38t • 81g | 40t • 89g | 42t • 94g Material: 7075-T6 aluminium

Made in the USA