Associated RC18T Rear Narrow Radial Tyre for Tuning with 30g Insert AR893R30G by GPM  [AR893R30G/GPM]

RC18T narrow radial rear tyre

This matched pair is an RC-scale replacement made for the Associated RC18T rear axle and includes a 30g insert per tyre. The rubber narrow radial design is aimed at improving rear traction and predictability on 1/18 style short-course layouts.

Installation tips:

• Verify wheel rim compatibility with Associated RC18T rear wheels before fitting the tyre.
• Place the 30g insert into the tyre before seating it on the rim to aid balance and consistent fitment.
• Seat the tyre fully and spin the wheel to check for wobble; trim any excess bead for axle or suspension clearance.

Handling and setup advice:

• The 30g insert raises rear stability and moderates traction response compared to running without an insert, which helps with oversteer on loose tracks.
• The narrow radial profile promotes a more predictable entry into corners and can be chosen when greater rear response is wanted.
• Apply changes progressively, adjusting one element at a time to evaluate handling differences.

Care instructions:

• Examine tread and sidewalls for cuts, splits or deformities before each outing.
• Clear debris after running and store tyres away from heat sources.
• Replace inserts that are permanently deformed or that compress unevenly under load.