E-Thirteen Helix e*spec Crank Arm Set - 170mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor BLK

Experience superior performance with the e*thirteen Helix e*spec Crank Arm Set - 170mm, designed specifically for BOSCH Gen4, Brose S Mag, and TQ HPR50 motor systems. Crafted to upgrade your e-bike drivetrain, these Helix Core cranks combine durability, precision, and style at an outstanding value. Built for the demands of e-Enduro riding, they feature forged CNC machined AL-6066-T6 alloy arms, ensuring exceptional strength and reliability on every trail. The set includes alloy self-extractor bolts, pedal washers, and molded impact boots to protect your investment and maintain smooth operation. Compatible with 24mm ISIS spindle motor systems such as Bosch Gen 4, Brose S Mag, TQ, Fazua, Yamaha, Maxon, and Specialized Brose, these cranks offer versatile compatibility for a wide range of e-bike setups. Available in short crank lengths starting at 155mm, they provide improved pedal clearance, enhancing your control and comfort. Please note, chainrings are sold separately, allowing you to customize your drivetrain to fit your riding style.

• Forged CNC Machined AL-6066-T6 arms for maximum strength
• Compatible with 24mm ISIS spindles
• Includes self-extractor bolts, pedal washers, and molded impact boots for durability
• Optimized for e-bike motor systems including BOSCH Gen4, Brose, TQ, Fazua, Yamaha, and more
• Available in shorter crank lengths for enhanced pedal clearance
• Chainring sold separately for customizable setups