Choose your car
Sprint pads for Formula or rear axle for GT / Rally. Moderate coefficient of friction, high temperature resistance.
Secured site and payment!
Ultra-secure and encrypted payment via Stripe.
Order shipped the same day if ordered before noon!
24/72h DPD express, fast preparation of parcels.
Returns within 14 days accepted without conditions!
You change your mind, we refund you.
Formula cars and open wheel racing. Rear axle material for Rally (tarmac and gravel) and for all front engine cars. Also used in NASCAR on long ovals.
Description:
RST4 is a semi metallic resin bonded material containing steel fibers. This material has a medium friction level and high temperature resistance. 
Sprint pads for Formula or rear axle for GT / Rally. Moderate coefficient of friction, high temperature resistance.