-Super light Scandium ISIS Drive BB. -CNC machined scandium hollow spindle. -M14 AL7075 X-Long bolts. -Cold forged alloy cups and body. -High rolling sealed bearings. -Length: 108mm ISIS drive for Double Road. -Cups: 68mm BSA 1.37" x 24T, R/L cups, or 70mm BSC/lta. 36mm x 24T, R/R cups. -Chain line: 43.5mm (Road Double). -Weight (W/O bolts): 138g. | 
