Kyosho UM145 Ball End Sheet

Kyosho UM145 is a genuine sheet of foam ball end pads for Kyosho's 1/10 scale off-road buggies. These small foam discs sit inside the ball cups on camber links, steering links, and shock ends, taking up the tiny amount of free play between the cup and the ball. That does two useful things: it removes slop from the linkage so steering and camber settings stay precise, and it adds enough friction that ball cups are far less likely to pop off during a hard landing or a tumble.

They are consumable by nature, compressing over time and needing replacement whenever you rebuild links or notice a cup working loose. This is the factory part rather than a generic substitute, so the thickness matches what Kyosho designed the cups around. Fitment covers the Ultima RT5, RT6, RB5, RB6, RB6.6, and RB7 along with the Lazer ZX-5, ZX6, and ZX7. The sheet supplies sixteen pads, enough to service a full set of links.