e*thirteen Helix R 73 mm Crankset

The Helix R crankset by e*thirteen for MTB use

The e*thirteen Helix R crank with 30 mm aluminium axle is designed for 73 mm casing width, is weight-optimised thanks to CNC production and, in combination with a Helix R chainring, is suitable for Boost and Super Boost chainlines.

Specifications:

Application:

Cross Country, All Mountain, Enduro

Compatibility:

1x

Chainring Mount:

e*thirteen Direct Mount

Technical Information:

Series:

Helix Race

Crank Arm Material:

aluminium (6066-T6)

Axle Material:

aluminium (7050-T7)

Crank Arm Length:

165.0 mm, 170.0 mm, 175.0 mm

Chainline:

dependent on chainring

Axle Diameter:

30 mm

Compatible BSA Shell Width:

73 mm

Recommended Bottom Bracket:

Shimano BB92, Shimano BB30

Features:

• strong mountain bike crank with low weight
• forged aluminium arms for high durability
• CNC-manufactured, thus particularly light and nice-looking
• suitable for Boost and Super Boost chainlines with Helix R flip-flop chainrings
• with crank guards
• low-noise interface for direct-mount chainrings
• with self-extractor
• can be used in bike parks
• suitable for Shimano and SRAM 12-speed drivetrains

Manufacturer Numbers:

165.0 mm:

CS4HRA-103 (black), CS4HRA-100 (bronze)

170.0 mm:

CS4HRA-104 (black), CS4HRA-101 (bronze)

175.0 mm:

CS4HRA-105 (black), CS4HRA-102 (bronze)

Contents:

• 1 x e*thirteen Helix R right crank arm
• 1 x e*thirteen Helix R left crank arm
• 2 x e*thirteen Crank Protectors

Order Together:

• Helix R Guidering Direct Mount Chainring