Pro Cut Grey Fronts - Grey compound foam on our HR 38 wheels. Softer than black compound for more steering, gets less sticky than Magenta or Purple.

This is from the Japanese-made white/yellow/grey/black family of foam rubber.  A very light weight foam that resists carpet fiber collection as well as grip “pick-up”. This family of rubber is good at repelling loose carpet fibers and also tends not to get sticky as the run goes on. This compound wears faster than Pink/Purple and the Greene/Blu family of rubber.

Soft to hard

White – Yellow – Grey-low – Grey – Black