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).
26T (52g), 28T (54g), 30T (58g), 32T (62g), 34T (69g), 36T (75g)
RaceFace Cinch system cranks. RF Next SL, RF SIXC, RF Turbine, RF Atlas, AEFFECT CINCH cranks. 9, 10, 11 and 12spd Eagle compatible
cnc machined 7075 Txxx Aluminum. Long-lasting construction
type II anodizing
52mm. 3mm offset
Optimized to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3° after TDC (top dead center) Patent Pending