We originated the 1x drivetrain, and the SRAM Force 1 crankset evolves the innovation. It's lighter, stronger and simpler—non-aero chainrings can now be installed with a single tool. For cross, TT, tri and crits, this is the king of 1x.
FEATURES
    - Single-ring drivetrain simplifies functionality and reduces weight
- 48t variant has direct mount aero chainrings for better aerodynamics
- Non-aero chainrings can be installed with a single tool, making gearing changes a breeze
- SRAM X-SYNC™ wide-tooth, narrow-tooth chainring technology provides maximum chain control
- DUB™ bottom bracket adds durability and simplicity
- Can be upgraded to a power meter
 
                    
CRANK ARM LENGTH	165mm, 167.5mm, 170mm, 172.5mm, 175mm
BB SPINDLE INTERFACE	DUB, GXP
BB COMPATIBILITY	All SRAM Road DUB BBs, GXP/PF GXP 68mm
SPEEDS	12
CHAINRING MATERIAL	Aluminum
BOLT CIRCLE DIAMETER (BCD)	107 BCD, Direct Mount (DM)
CHAINLINE	45.0mm, 51.0mm
CHAINRING SIZE	36T, 38T, 40T, 42T, 44T, 46T