ZoomabsoluteBLACK
Oval RaceFace Cinch DM Boost 148 Chainring - Shimano HG+ 12 Speed
The Original one and only absoluteBLACK Premium 1X RaceFace Boost compatible, narrow wide Oval chainring designed for RaceFace CINCH direct mount system. This version is designed specifically to work with CN-M9100, 8100, 7100 & 6100 Shimano Hyperglide+ 12spd chain Only. It is the most Premium oval chainring on the market with scientifically proven performance gains. Fits FAT BIKES (when reversed)
Weight: 30T (58g), 32T (62g), 34T (69g)
Colour: Black
Compatibility: RaceFace Cinch system cranks. RF Next SL G4, Next SL, Next R, RF SIXC, RF Turbine, RF Atlas, AEFFECT, RIDE CINCH cranks. Shimano 12spd Hyperglide+ chain oonly
Material: cnc machined 7075 Txxx Aluminum. Long-lasting construction
Finish: type II anodizing
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
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.
If you wish to check for frame clearance with new oval ring, below you can find measurement of biggest dimension of the oval (tip to tip of tooth):
30T: 134mm ; 32T: 143mm ; 34T: 151mm
The Original one and only absoluteBLACK Premium 1X RaceFace Boost compatible, narrow wide Oval chainring designed for RaceFace CINCH direct mount system. This version is designed specifically to work with CN-M9100, 8100, 7100 & 6100 Shimano Hyperglide+ 12spd chain Only. It is the most Premium oval chainring on the market with scientifically proven performance gains. Fits FAT BIKES (when reversed)
Weight: 30T (58g), 32T (62g), 34T (69g)
Colour: Black
Compatibility: RaceFace Cinch system cranks. RF Next SL G4, Next SL, Next R, RF SIXC, RF Turbine, RF Atlas, AEFFECT, RIDE CINCH cranks. Shimano 12spd Hyperglide+ chain oonly
Material: cnc machined 7075 Txxx Aluminum. Long-lasting construction
Finish: type II anodizing
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
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.
If you wish to check for frame clearance with new oval ring, below you can find measurement of biggest dimension of the oval (tip to tip of tooth):
30T: 134mm ; 32T: 143mm ; 34T: 151mm
