Helix R e*spec AL Crank Arm Set - 155mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor Bronze MFPN=11.4015.354.020 – Optionally suitable for Steel

– Optionally suitable for Steel Edge World Cup (art

Aero utilizes stronger advanced aluminum alloy

Kryptonite Keeper Folding Locks provide easy to carry reliable protection for moderate theft protection

Tooth Count 38 Ring Position/Type Chain Retaining Single Ring Drivetrain Speeds 11 Drivetrain Speeds 12 Chainring BCD 104 Color Black Defined Color Black Material Aluminum

BCD Direct Mount Narrow-Wide Design X-Sync 2 Speed 12 Teeth 36 Chainring Comp

Helix R e*spec AL Crank Arm Set - 155mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor Bronze MFPN=11.4015.354.020 – Optionally suitable for SteelA 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