ECHO SL Cranks

Newly 3D designed SL splined cranks, use a whole 7075 - T6 aluminum sheet and adopting the CNC processing technique. The new cranks will be splined instead of the traditional 1.37''*24T threaded design. The new design ensures correct alignment of the freewheel, chain and sprocket reducing skipping. It is also easier assemble and disassemble allowing for easier freewheel changes.