Team Associated RC18T Rear Radial Tire 40 degree Insert AR899R40G by GPM  [AR899R40G]

Replacement rear radial for RC18T

This rear radial tyre is engineered as a replacement for Team Associated RC18T rear fitments, designated AR899R40G. It combines a standard rubber compound with a 40 degree insert to reproduce the intended tread profile and sidewall support characteristic for RC18T rear wheel assemblies.

Installation on compatible RC18T rims is straightforward: remove the used tyre, seat the replacement tyre on the rim bead, install the insert to achieve the target sidewall stiffness, and trim or tuck the bead material to suit each wheel type. Standard tyre levers and a hobby knife or file are adequate for finishing work.

In setup terms the 40 degree insert functions as a tuning parameter, changing how the tyre maintains shape under lateral and drive loads and therefore influencing rear traction and rotation. Use insert selection alongside compound and suspension adjustments when optimising rear-end behaviour for track conditions.