Oval Direct-Mount Shimano Boost Drop-Stop ST

More power? Check.

Better traction? Definitely.

Less shifting? Yup.

Funky uneven pedal stroke? Not with Wolf Tooth’s PowerTrac Elliptical™ (PTE) chainrings. Our proprietary design means a slightly less ovalized ring (10%) with less aggressive timing (112°) than competitors’ versions; any change to your pedal stroke is unnoticeable for most riders, but they still provide the POWER and TRACTION benefits inherent to oval chainrings.

The new Shimano XTR, XT, and SLX 12spd Hyperglide+ chain works differently than other products on the market so Wolf Tooth engineers developed a completely new tooth profile to provide optimal chain retention and durability when using this new chain technology.

• The new HG+ chain interacts with the chainring much differently than a traditional wide/narrow design. Wolf Tooth engineers spent the time to understand how the system works and design a new tooth profile that is optimized for this system.
• Engineered proprietary tooth profile maintains the quiet and smooth performance of the HG+ drivetrain with legendary Wolf Tooth chain retention.
• Prevents premature ring and chain wear that can come from non-optimized profiles.

Tech Specs

Weight: 32t • 74g | 34t • 82g
Material: 7075-T6 Aluminum
Made in the USA

Compatibility

• Shimano XTR M9100, XT M8100, and SLX M7100 series 12 speed cranksets.
• Compatible with Shimano 12-speed Hyperglide+ chains