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): 26T (52g), 28T (54g), 30T (58g), 32T (62g), 34T (69g), 36T (75g)
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.
RaceFace Cinch system cranks. RF Next SL G4, Next SL, Next R, RF SIXC, RF Turbine, RF Atlas, AEFFECT, RIDE cinch cranks. 9, 10, 11 and 12spd Eagle compatible.