e*thirteen Releases New Helix Race E*spec Cranks and Chainrings

July 21, 2023 - e*thirteen, a leading innovator in mountain bike drivetrain components, is proud to announce the launch of the rugged and handsome Helix Race e*spec cranks and chainrings designed to fit Bosch CX and SX motors.

Advanced Durability and Refined Style for Your EMTB’s Drivetrain

With the increasing popularity of EMTB, e*thirteen recognized the need for high-performance drivetrain components that are tailored to the rigorous requirements of electric motor systems, yet are still beautifully designed. The Helix Race e*spec cranks and chainrings are engineered with precision and durability in mind to not only enhance the performance and reliability of e-bike drivetrains, but are available in colors so you can customize your ride.

While the chainring is designed specifically for Bosch CX and SX, the cranks do fit all motors based on ISIS Drive spindles. That also includes TQ HPR50, Brose, Yamaha, Maxon, and Specialized 2.2 motors.

Product Information

• Forged, CNC Machined AL-6066-T6 arms
• Compatible with 24mm ISIS Spindles
• Integrated seal filling the gap between crank and rings, keeping out the mud and dirt.
• Helix Race E*spec Chainring (sold separately)
• Compatible with Bosch, Brose S Mag, TQ, Fazua, Yamaha, Maxon and Specialized Brose motor systems
• Extensive CNC machining for lighter weight and looks to kill
• Molded crank boots
• Weight 155mm: 413g, 160mm: 431g, 165mm: 433g

What is e*spec?

e*spec is a category of e*thirteen components engineered specifically for the rigors of EMTB.

Pricing and Colors

HELIX RACE E*SPEC CRANKS

• MSRP: USD: $219.95 // EU: €229.95 // UK: £199.95
• AVAILABLE SIZES: 155mm // 160mm // 165mm
• COLORS: BLACK // BRONZE

HELIX RACE E*SPEC CHAINRINGS

• MSRP: USD: $81.95 // EU: €85.95 // UK: £74.95
• AVAILABLE SIZES: 32t // 34t
• COLORS: BLACK // BRONZE // EGGPLANT PURPLE // NARANJA ORANGE

For more information head to www.ethirteen.com.