Sugino Forged cranks with single 48 tooth 3/32" chainring for singlespeed/fixed-gear use.
Arm lengths: 165mm
-Spindle Interface Type: Square Taper JIS
-Chainring BCD: 130mm
-Crank bolts included.
-Bottom Bracket sold separately
Use a 107mm bottom bracket for road frames.
NOTE: There's some conflicting information, online, as to which bottom bracket width gives you the best chainline. We have found that the 103mm BB is best used with an actual track frame.