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 deliver the inherent POWER and TRACTION benefits of oval chainrings.

It's like having two chainrings in one! With PowerTrac elliptical rings, the larger 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 smaller 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.

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

Chainline (approximate as BB centering and cranks vary) - 48mm on 3x cranks and 49mm on 2x 

Compatibility

• These rings fit all 104 BCD cranks
• Wolf Tooth's patented Drop-Stop® wide/narrow tooth profile for ultimate chain retention and mud-clearing capability
• For 1x9, 1x10, 1x11 and 1x12 drivetrains (including SRAM Eagle)
• If you are using a 9-speed drivetrain, use a 10-speed chain (shifts and performs well on a 9-speed drivetrain and fits more closely to the ring for better chain retention).
• Quarq power meter compatible with 34t and 36t sizes. Chainring required for mounting 32t on some older Quarq power meters. No modification required for the Quarq DUB power meter.
• Threaded to use M8 chainring bolts (no nut required)
• 10% ovality and 112° timing after TDC (top dead centre)
• The maximum diameter is that of a chainring 2t larger than the size you order (so ensure there is adequate bottom bracket clearance).
• Available in two different tooth profiles for optimal performance depending on your chain type. Use Drop-Stop ST for use with Shimano Hyperglide+ 12-speed chains. Use Drop-Stop A for all 9, 10 and 11-speed chains or SRAM Eagle, KMC, Connex or Wippermann 12-speed chains.

Technical specifications

Weight: 32T • 41g | 34T • 48g | 36T • 55g

Material: 7075-T6 aluminium

Made in the USA