Shimano Altus FC-M315-2 7/8 Speed Crankset Chain Case Not Compatible 175mm BlackThe Shimano FC-M315-B2 Double Front Crankset is a great replacement for your 7 or 8 speed double front crank. This version is compatible with Square Bottom Bracket Tapers and does not include bottom bracket. The gearing is 22/36T and the aluminum crank arms measure 170mm or 175mm. Works best with Shimano HG 7/8 speed chains. This is the Chain Case Not Compatible version.192790444680
