72T x 1/8" Right Crank Arm for Schwinn AC Bikes

• This replacement ISIS right crank arm comes with an 1/8" chain sprocket that has 72 teeth and is used on all of the Schwinn AC bikes that are equipped with an 1/8" chain
  • Crank arm is for use on the Schwinn AC bikes manufactured with serial# after 100176DAY12160309
  • Fits AC Performance
    • Bikes equipped with 1/8" chain 
  • Fits AC Classic
    • Bikes equipped with 1/8" chain
  • Fits AC Sport
    • Bikes equipped with 1/8" chain

Schwinn AC bikes previously came out with a 3/32" chain and right crank sprocket combination. This replacement right crank and 1/8" sprocket will not be compatible to AC bikes with a serial# before 100176DAY12160309.  If it is not known which chain/sprocket combination is on your Schwinn AC bike, we recommend replacing both the chain and right crank arm at the same time to prevent any compatibility issue