See: Klinik RC

Klinik RC have introduced the new 5 degrees vertical ballstud caster blocks for the Schumacher Racing Cougar Laydown, Cougar KC, Cougar KD and the forthcoming 2020 Storm Truck. Machined from high-quality aluminium and coming black anodized, the vertical ballstud caster blocks allow to adjust front roll center much more with a simple washer change. Klinik RC designed these caster blocks with the option of increasing front end grip, mechanical traction and steering response. With 0 washers these have the same geometry as a stock upright, adding washers will add initial steering response and increase corner speed.