Full Speed Ahead CK-220 Bosch Gen 4 Ebike Crank Arm Set - 155mm ISIS Black ModelNumber=E4032 used in the mid-range products

used in the mid-range products like the 350 hubs

microSHIFT ADVENT Xpress shifters feature ergonomic levers and precise durable indexing for reliable performance in a variety of situations

Disc brake rotor sold separately

5 mm thickness and aggressive block patterned surface texture shock and vibrations are absorbed delivering the perfect grip and bike control on the most technically demanding terrain

Full Speed Ahead CK-220 Bosch Gen 4 Ebike Crank Arm Set - 155mm ISIS Black ModelNumber=E4032 used in the mid-range productsFull Speed Ahead CK 220 Bosch Gen 4 Ebike Crank Arm Set 155mm ISIS Black. FSA CK 220 eBike Crankarms compatible with Bosch Gen 4 engines. Diecast alloy crank arms ISIS drive TECH SPECS Color Black Crank Length (mm) 155 Pedal Spindle 9 16" Spindle Interface Type ISIS Designed for ebike Yes Defined Color Black