ABSOLUTE BLACK Oval Race Face Direct Mount Boost 3 mm Offset chainring

Our premium 1x raceface boost 148 direct mount narrow wide 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). optimized to work perfectly with eagle 12spd. it also works great with 10/11spd. . specifications: weight: - 52g compatibility: - 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. material: - cnc machined 7075 txxx aluminum. long-lasting construction chainline: - 52mm. 3mm offset 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