Box Three BMX Race Disc Brake Caliper - Black supplier_20040430878831 It's designed with enough tread

It's designed with enough tread on the sides to help you "bite" into concrete or dirt

Profile Front: Fits Profile Mini front hubs

A Mid bottom bracket is included with the Metron Cranks so you've got all you need to get back out there

Chromoly Spindle upgrade or replacement for Profile Column 22mm cranks

utilising a newly designed cassette TCS (Toothed Coupling System) mechanism

Box Three BMX Race Disc Brake Caliper - Black supplier_20040430878831 It's designed with enough treadThe Box Three BMX Disc Brake Caliper is here! With an IS style mounting interface made of carbon steel, this disc brake caliper is all you need to improve control. Weighing only 130 grams, this lightweight gadget will spring you smoothly through every turn. All you need to do is focus on the finish line.