Helix R e*spec AL Crank Arm Set - 155mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor Bronze PSI-30 Pro2/Pro2 EVO service parts are

Pro2/Pro2 EVO service parts are not compatible with Pro4 hubs

40-Series External Cup headsets set the standard for performance durability and value

Vendor Kryptonite Manufacture Number 998457 Model Name New York Disc Lock Premium Pack Category Locks

Misc Bearing 47

Helix R e*spec AL Crank Arm Set - 155mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor Bronze PSI-30 Pro2/Pro2 EVO service parts areA high performance weight optimized alternative to carbon fiber for riders who prefer alloy cranks. These 24mm ISIS interface cranks are engineered for compatibility with Bosch Gen 4 Brose S Mag TQ HPR 50 Fazua Yamaha Maxon and Specialized Brose motor systems. They come in short lengths starting at 155mm for improved pedal clearance and are tested to E Enduro standards. Color Bronze Crank Length (mm) 155 Pedal Spindle 9 16" Spindle Interface Type ISIS