e*thirteen Helix R espec E-bike Crank for Bosch CX Gen4 -5/ Brose S Mag - bronze/160,0 mm

e*thirteen Helix R espec E-bike Crank for Bosch CX Gen4 -5/ Brose S Mag

Item number: 91713
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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 CX 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:

Mounting:
  • crank arm only
Application:
Enduro, All Mountain, MTB

Technical Information:

Crank Arm Material:
Aluminium
Recommended Inner Bearing:
ISIS
Compatible Hub Spacing:
Boost, Non Boost

Compatibility:

  • 24 mm ISIS mount - Bosch Gen4+5 - Brose S Mag

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 Number:

  • black/155,0 mm: CS4EAA-100
  • black/160,0 mm: CS4EAA-101
  • black/165,0 mm: CS4EAA-102
  • bronze/155,0 mm: CS4EAA-103
  • bronze/160,0 mm: CS4EAA-104
  • bronze/165,0 mm: CS4EAA-105
  • silver/155,0 mm: CS4HAA-102
  • silver/160,0 mm: CS4HAA-103
  • silver/165,0 mm: CS4HAA-104

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:

Perigeum Development Inc. DBA e*thirteen
1445 Technology Lane STE A9
Petaluma
CA 94954
USA
support@ethirteen.com

Distributor:

Cosmic Sports GmbH
Leyher Straße 47
90763 Fürth
Germany
info@cosmicsports.de
Financing
  • 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
    204.99€
  • black/160,0 mm, currently not available
    165.99€
  • black/165,0 mm, Shipping in 1-3 business days
    168.99€
  • bronze/155,0 mm, available from 31.08.2025
    111.99€
  • bronze/160,0 mm, currently not available
    177.99€
  • bronze/165,0 mm, currently not available
    184.99€
  • silver/155,0 mm, Shipping in 1-3 business days
    176.99€
  • silver/160,0 mm, Shipping in 1-3 business days
    162.99€
  • silver/165,0 mm, Shipping in 1-3 business days
    175.99€

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.

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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.