Associated RC18T Front Radial Tyres 30 Degree Insert AR899F30G by GPM  [AR899F30G]

RC18T front radial tyre upgrade

This front tyre pair is purpose-made for the Associated RC18T and is supplied as two tyres marked AR899F30G. The rubber radial profile combined with a 30 degree insert alters sidewall compliance and steering response while leaving wheel geometry unchanged.

Fitting follows common RC tyre practice: install the 30 degree insert inside the tyre, seat it on a compatible RC18T front rim, then secure using your usual mounting and adhesive routine. No specialised tools beyond normal tyre equipment are needed.

From a setup angle these tyres influence front bite and turn-in. The radial design and insert angle work to stabilise contact patch behaviour during steering loads, offering a straightforward method to tweak front grip without reworking suspension components.