Bottom Bracket W/ Bolts, Overdrive

• 68 x 113
• Used on "Evolution/Evolution SR" units made from 2005 or newer. The fist four number on the serial number will tell you what month & year the unit was manufactured.
• Isis Overdrive DH-BMX  TruVativ

Compatible to:

• Startrac  OEM number 003-1508 (ST1737)
• Freemotion OEM number 398284 or 311504 (FMB1021)