Associated RC 18T Rear Radial Tyres Precision Moulded 40 Degree Insert AR898R40G by GPM  [AR898R40G]

Associated RC 18T Rear Rubber Standard Radial Tires With Insert (40 Degree ) -1pr - GPM AR898R40G
Price:
USD$3.84
Brand:
GPM
Model:
AR898R40G
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Precision rear radial tyres

This tyre pair is tailored for the Associated RC 18T platform, supplied as a single pair with an internal insert and a 40 degree shoulder angle. The tyres are precision moulded with a standard radial profile intended to deliver repeatable rear traction and controlled slip-recover behaviour on 1/18 2WD race trucks.

Installation: mount to compatible Associated RC 18T wheels, seat the bead evenly and fit the supplied insert to maintain section shape under load. Correct orientation of the 40 degree shoulder for rear placement is essential to achieve the intended handling balance.

Technical role: use these standard radial tyres as a neutral rear reference during setup development to isolate suspension and mass distribution effects without adding compound or tread aggressiveness.

Why choose a 40 degree shoulder for the rear?

A 40 degree shoulder gives a predictable contact transition at the rear, aiding consistent slip and recovery which helps when tuning suspension balance.

How should inserts be prepared?

Fit the inserts so they sit centrally without folds; this preserves the intended section shape and ensures repeatable handling under load.

What testing approach works best with these tyres?

Use them as a control tyre to compare suspension setups and weight distribution changes, recording lap-to-lap consistency rather than absolute grip levels.