Rotor VEGAST crank arms

Much like Rotor ALDHU crank arms, Rotor VEGAST utilizes a special manufacturing process named the “Trinity Drilling System", where an extruded aluminum bar is intricately CNC machined with three internal holes through the length of the crank, resulting in the dual benefit of an exceptionally light, strong semi-hollow crank arm with superior stiffness.

VEGAST crank arms must be paired with the Rotor Track30 Spider & Axle (sold separately).

 

ⓘ Professional assembly and installation using a torque wrench and following all published torque specifications is strongly recommended.

Specifications

• length: 165mm, 170mm

• chainline: 43mm

• Q-factor: 140mm

• includes preload collar and auto-extractor bolts 

• required bottom bracket: Rotor BSA30 Track (sold separately)

• color: black

• weight: 369g (165mm), 377g (170mm)

Bottom bracket compatibility 

Rotor AHLDU and VEGAST Track cranks must be used with Rotor’s BSA30 Track bottom bracket, which has thinner external cups than all other outboard bottom brackets designed for use with a 30mm axle.

Using a bottom bracket with thicker cups may technically seem possible, but the back of the disc spider will contact the drive side cup once installed and the non-drive side cup won’t leave enough of the axle splines exposed to properly secure the left crank arm, damaging the mounting interface.