Three crankarm interface sizes: For EASTON 55g crank interface, for MTB crank interface 60g, for SRAM 3-bolt crank interface 63g. Choose the crankset that matches your crankarm interface. 1 x Bicycle Sprocket Adapter.
The Direct Mount Chain Adapter BCD110 4 Bolt Spider is ideal for SRAM 3 bolt and GXPC frames.
