IPS

 Tandem specific crankset - allows captain and/or stoker to coast or pedal independently  Forged alloy crankarm and spider  Steel 39t chainring Does not include BB (square taper) Weight does not include BB **Only compatible with tandems that have both chains on the right side of the tandem** 170x39 134 SQR JIS BLK 130/74x5B 1157g Tandem ...