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Load image into Gallery viewer, e*thirteen Helix Race Alloy e*spec Crank Arm Set - BOSCH SX-Brose S Mag-TQ HPR50, 21.5mm Offset, 160mm, with Self

SKU: EBCK0077

e*thirteen Helix Race Alloy e*Spec Crank Arms Set - Lightweight, High-Performance Alloy Cranks for Bosch, Brose, TQ HPR50 e-MTBs | 24mm ISIS Interface, 160mm, Black, Designed for E-Enduro & E-Bike Compatibility

Regular price $223.58
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Description
Specifications

Upgrade your e-bike performance with the ethirteen Helix Race Alloy espec Crank Arm Set - the ultimate lightweight, high-performance solution for modern electric mountain biking. Crafted from premium alloy materials, these cranks offer an alternative to traditional carbon fiber, delivering exceptional durability, strength, and weight savings designed specifically for aggressive riding conditions.

Materials & Engineering Excellence

Constructed from aerospace-grade aluminum alloy, the ethirteen Helix Race Alloy cranks provide superior strength-to-weight ratio, ensuring long-lasting performance under demanding off-road scenarios. The 24mm ISIS interface offers a secure, rigid connection to your motor system, compatibility with Bosch Gen 4, Brose S Mag, TQ HPR 50, Fazua, Yamaha, Maxon, and Specialized Brose motors-making them versatile for a wide range of e-bike platforms.

Performance & Technology

Engineered for precision and reliability, these cranks feature a 21.5mm offset to optimize pedal clearance, simplifying technical climbs and tight cornering. Certified to E-Enduro standards, they withstand extreme trail conditions, providing confidence during high-impact rides. The 160mm crank length strikes an ideal balance for aggressive trail riding and enduro performance.

Components & Compatibility

Designed with a 9/16" pedal spindle, these cranks are compatible with a broad selection of pedals and cycling accessories. Their compatibility with 24mm ISIS interfaces ensures seamless installation, offering riders a straightforward upgrade path to enhance power transfer and efficiency.

Style & Use Case

With a sleek black finish, the ethirteen Helix Race Alloy cranks add a professional, aggressive aesthetic to your e-bike. Perfect for trail riders, enduro racers, and confidence-driven mountain bikers seeking a lightweight, durable crankset that combines innovative engineering with versatile performance.

Innovative Features & Differentiators

- High-performance alloy construction for optimized weight savings over traditional setups

- Compatibility with major e-bike motor systems (Bosch, Brose, TQ, Fazua, Yamaha, Maxon, Specialized Brose)

- Tested to meet E-Enduro standards for durability and reliability in aggressive riding environments

- Short 155mm crank lengths available for improved pedal clearance in technical terrain

Upgrade your electric mountain bike with the ethirteen Helix Race Alloy espec Crank Arm Set for increased power transfer, enhanced durability, and a lightweight profile that keeps you agile on the trail. Whether you're tackling climbs or bombing descents, these cranks are designed to elevate your e-mountain biking experience.

  • Lightweight and durable alloy construction provides a high-performance alternative to carbon fiber, ensuring reliable strength and reduced weight for aggressive e-bike riders.
  • Engineered for versatility and compatibility with a wide range of motor systems including Bosch Gen 4, Brose S Mag, TQ HPR 50, Fazua, Yamaha, Maxon, and Specialized Brose, simplifying upgrades and replacements.
  • Featuring a 21.5mm offset and 160mm crank length, these e*thirteen Helix Race Alloy cranks optimize pedal clearance and rider ergonomics for improved handling and comfort during aggressive off-road riding.
  • Designed with a 24mm ISIS interface and 9/16" pedal spindle, these crank arms deliver robust engagement, smooth power transfer, and enhanced durability under demanding riding conditions.
  • Modern black finish with sleek styling makes the Helix Race Alloy crank set ideal for both performance-oriented and aesthetic-focused e-bike builds, suitable for a variety of trail, enduro, and race applications.
ColorBlack
Crank Length (mm)160
Pedal Spindle9/16"
Spindle Interface TypeISIS
Designed for ebikeYes
Defined ColorBlack
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