E13 Helix R Crank, 73mm, 30mm axle, Bronze

Helix Race Aluminum Cranks are a top-of-the-line aluminum crankset that brings Enduro strength at Down Country weights, starting at just 556g. Extensively weight-optimized, almost every visible crank surface is CNC machined from a burly forged blank. The design leverages the modular spindle system of e*thirteen′s carbon cranks with alloy arms that peak the strength-to-weight ratio scales. They come with custom molded crank boots for added impact resistance, an alloy extractor bolt system, and APS Adjuster. Compatible with Helix flip-flop chainrings, they can adapt to both Boost or Super Boost chainlines.

– Forged, CNC machined alloy crank arms and 30mm AL 7050-T7 spindle for Down-Country weight with Enduro strength
– Compatible with Helix Direct Mount Chainrings for Boost/Superboost Chainline
– Self Extracting Bolt System, and APS Adjuster for ease of installation and service
– Proven creak-free Quick Connect ring interface
– Molded crank strike boots and thick, clear polymer protective decals

– 52/55mm Chainline
– e*thirteen Direct Mount
– Chainring install tool:

E13 Spider removal / BB tool