GPM Team Associated RC18T Rear Radial Tyre Standard Rubber 40 degree Insert AR899R40G - Replacement Part  [AR899R40G]

RC18T rear radial option

This rear radial tyre serves as a replacement for Team Associated RC18T rear fitments and is listed as model AR899R40G. It pairs a standard rubber compound with a 40 degree insert to achieve the correct tyre profile and sidewall support for RC18T rear installations.

To fit on compatible RC18T wheels: remove the old tyre, seat the replacement tyre over the rim bead, insert the 40 degree core to regulate sidewall stiffness, then trim or tuck the bead to match your rim. Standard tyre levers and a sharp hobby blade or file are sufficient for final dressing.

As a tuning part, the 40 degree insert alters how the tyre keeps its shape under cornering and acceleration loads, which changes rear traction and rotation. Use the insert in concert with compound choice and suspension adjustments when refining rear-end balance on carpet and hard tracks.