ethirteen Helix Core espec Cranks for ISIS Spindle - 160mm, 21.5mm Offset, Black Code:CS5ESA-101 a clever layer designed to

a clever layer designed to reduce rotational motion transferred to the brain during angled impacts

Tongue gussets shield moisture

PRECISE DATA

to create a durable protective coating which guards against corrosion and metal-to-metal contact which reduces wear resulting in a longer lasting drivetrain

ethirteen Helix Core espec Cranks for ISIS Spindle - 160mm, 21.5mm Offset, Black Code:CS5ESA-101 a clever layer designed toThe ethirteen Helix Core espec Cranks offer high end drivetrain integrity and a premium look at an exceptional value. Forged from tough 6066 T6 aluminum, these short 160mm crank arms drastically reduce pedal strikes on low BB trail geometries while maintaining excellent pedaling efficiency. Featuring a 21. 5mm offset for a compact, tailored Q factor on standard ISIS spindle motors, they come complete with an alloy self extractor system, steel pedal