Avian Pro Versus Carbon Straight (20" and 24") Cranks It has a fully smooth

It has a fully smooth central tread for low rolling resistance

letting you quickly dial fit across the midfoot while leaving ample room for metatarsal expansion while mashing out of corners or jockeying for position during a bunch start

2 mm (standard BMX handlebar size)

one (1) tube spacer (68mm for 19mm spindle

+ UTC Rubber Compound

Avian Pro Versus Carbon Straight (20" and 24") Cranks It has a fully smoothBuilt for high level racing, the Avian Versus Pro Carbon Straight Fork delivers strength, stiffness, and clean styling with alloy dropouts in your choice of 10mm or 20mm. Lightweight and trusted by elite BMX racers worldwide. Product Highlights 4mm thick 7005 aluminum steerer tube for maximum strength Aero Toray carbon fiber legs with alloy dropouts Internal M10 thread locking systemno expander plug or star nut needed Specifications Wheel Sizes: 20"