IMPORTANT: This particular chainring will ONLY work with CN-M9100, 8100 & 7100 Hyperglide+ 12spd chain due to different thickness and shape of the teeth.
Our premium 1X RaceFace Boost 148 direct mount compatible Oval chainrings are designed for CINCH system RaceFace uses to mount chainring directly to the crank.
This version is for BOOST 148 specific bikes and FAT BIKES (when reversed).

Chainline: 52mm. 3mm offset
Ovality: Optimised to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3° after TDC (top dead centre) Patent Pending
Size: (Mass +/-1g): 30T (58g), 32T (62g), 34T (69g)

Advantages of our special Oval chainrings:

• Finest design to provide excellent weight to strength ratio
  
• One of a kind special oval shape (Patent Pending)
  
• Unique Patent Pending narrow-wide teeth profiles to keep your chain in place for minimum 12 months!
  
• Special 3D teeth machining for ultimate mud relief decrease wear and noise dramatically
  
• Designed to handle mud and grass with easy
  
• Superb quality and great look.
  
• You will ride faster using ovals. If you keep using round ring then others will get quicker.
  
• Reduces stress on knees and helps to maintain your legs fresher for longer.
  
• You will not "feel" the oval shape at all.

Designed to use with the Shimano 12 speed CN-M9100, 8100 & 7100 Hyperglide+ chain ONLY due to different thickness of the teeth with RaceFace Cinch system cranks. RF Next SL, RF SIXC, RF Turbine, RF Atlas, AEFFECT CINCH cranks.