E-Thirteen Helix e*spec Crank Arm Set - 155mm BOSCH Gen4-Brose S Mag-TQ HPR50 Self Extractor BLK

Elevate your e-bike's performance with the e*thirteen Helix e*spec Crank Arm Set - 155mm BOSCH Gen4-Brose S Mag-TQ HPR50 in sleek Black. Crafted to deliver exceptional strength and durability, these Helix Core cranks are engineered specifically for the demands of e-Enduro riding. Featuring forged CNC machined AL-6066-T6 alloy arms, this crankset offers a perfect balance of lightweight construction and robust resilience, ensuring reliable power transfer and long-lasting performance.

Designed with compatibility in mind, the 24mm ISIS interface fits seamlessly with Bosch Gen 4, Brose S Mag, TQ, Fazua, Yamaha, Maxon, and Specialized Brose motor systems. The 155mm crank length option optimizes pedal clearance, enhancing your riding comfort and control over challenging terrain. Each crank arm includes alloy self-extractor bolts, pedal washers, and molded impact boots, providing added protection and ease of maintenance.

Upgrade your e-bike drivetrain with this premium crank arm set that combines advanced materials, precision engineering, and thoughtful design — all at an outstanding value.

• Forged CNC Machined AL-6066-T6 arms for superior strength
• Compatible with 24mm ISIS spindles and multiple motor systems
• Includes alloy self-extractor bolts, pedal washers, and molded impact boots
• 155mm length enhances pedal clearance and riding ergonomics
• Chainring sold separately for customizable setup