ABSOLUTE BLACK OVAL RACEFACE BOOST CINCH DIRECT MOUNT 34T BLACK CHAINRING

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  • Regular price $94.95


Our premium 1X RaceFace Boost 148 direct mount Oval chainrings are designed for CINCH system RaceFace uses to mount chainring directly to the crank. This version is for BOOST 148 specific bikes only.

Size (Mass +/-1g): 26T (52g), 28T (54g), 30T (58g), 32T (62g), 34 (69g)
Compatibility: RaceFace Cinch system cranks. RF Next SL, RF SIXC, RF Turbine, RF Atlas, AEFFECT CINCH cranks. 1x12 Eagle compatible.
Material: cnc machined 7075 Txxx Aluminum. Long-lasting construction
Finish: type II anodizing
Chainline: 52mm
Ovality: Optimized to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3° after TDC (top dead center) Patent Pending

Difference between Boost148 and non-boost chainrings is in the offset/dish of the chainring itself only. You would use same crank in both boost and non-boost bikes, but chainring offset has to be different to accommodate chainstay clearance. Boost chainrings have only 3mm offset while non-boost ones 6mm.