e*thirteen Helix R espec E-bike Crank for Bosch Gen4 / Brose S Mag / TQ / Fazua - bronze/160.0 mm

e*thirteen Helix R espec E-bike Crank for Bosch Gen4 / Brose S Mag / TQ / Fazua

Item number: 91713
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2

The e*thirteen Helix R e*spec Crank for enduro e-bikes


This Helix R e*spec e-bike crank is suitable for e-bikes with 24 mm ISIS interface, including fourth-generation Bosch motors, Brose S Mag and other brands. It is intended for enduro use and scores with low weight and a resistant, CNC-manufactured design. It is equipped with a self-extractor crank puller so that you can easily remove the crank when replacing the chainring, for example.

Guidelines for Replacing E-bike Components:

Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance.

Specifications:

Application:
Enduro, All Mountain
Compatibility:
1x

Technical Information:

Series:
Helix Race e*spec
Crank Arm Material:
aluminium
Crank Arm Length:
155.0 mm, 160.0 mm, 165.0 mm
Chainline:
dependent on chainring
Recommended Bottom Bracket:
ISIS

Compatibility:

  • 24 mm ISIS mount
  • Bosch Gen4
  • Brose S Mag
  • Specialized Brose
  • TQ HPR50
  • Fazua
  • Yamaha
  • Maxon

Features:

  • strong e-bike crank arms for enduro e-bikes tested according to EN17406 Category 4
  • light and robust
  • CNC manufactured
  • integrated crank removal tool
  • short length for high ground clearance

Manufacturer Numbers:

155.0 mm:
CS4EAA-103
160.0 mm:
CS4EAA-104
165.0 mm:
CS4EAA-105

Contents:

  • 2 x e*thirteen Helix R e*spec e-bike crank arms
  • 2 x e*thirteen Crank Protectors

Weight:

  • bronze/160.0 mm: 431 g

Manufacturer:

e*thirteen
1120 Harold St
Alameda
CA 94501
USA
support@ethirteen.com

Distributor:

Cosmic Sports GmbH
Leyher Straße 47
90763 Fürth
Germany
info@cosmicsports.de
  • Shipping in 1-3 business days
  • 100-day return policy
  • Free returns
  • 25+ years of experience

Models:

  • black/155.0 mm, Shipping in 1-3 business days
    157.99€
  • black/160.0 mm, Shipping in 1-3 business days
    157.99€
  • black/165.0 mm, Shipping in 1-3 business days
    157.99€
  • bronze/155.0 mm, currently not available
    101.99€
  • bronze/160.0 mm, Shipping in 1-3 business days
    157.99€
  • bronze/165.0 mm, Shipping in 1-3 business days
    159.99€
  • silver/155.0 mm, currently not available
    156.99€
  • silver/160.0 mm, Shipping in 1-3 business days
    143.99€
  • silver/165.0 mm, Shipping in 1-3 business days
    152.99€

Customer Reviews (2)

5

Customer Reviews (2)

5.0/5.0
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Give us your opinion on this product.

by Christoph H. on 24.07.2025
verified purchase
item: bronze/165.0 mm

Montage war sehr simpel, Passgenauigkeit auf meinem Bosch CX Gen 4 Smart scheint perfekt zu sein. Optisch in Bronze mit schwarzem Kettenblatt und goldener SRAM Kette ein absolutes Highlight. Es liegen noch Schutzfolien für die Kurbeln bei. Die Staubkappe an der antriebsseitigen Kurbel funktioniert perfekt zusammen mit einem ethirteen Kettenblatt.

Is this review helpful?
by Raymond S. on 19.06.2025
verified purchase
item: bronze/160.0 mm

Super Qualität, Passt klasse und sieht Mega aus!!

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Give us your opinion on this product.