GPM Associated RC18T Rear Radial Tyre 40 Degree Insert AR893R40G Pack  [AR893R40G]

Overview of the RC18T rear radial tyre

This rear radial tyre is supplied for the Associated RC18T as a single pair under part number AR893R40G. It features a standard rubber compound together with a 40 degree insert to modify carcass stiffness and rear contact characteristics for setup work.

Fit and compatibility: the product is listed for use on Associated RC18T rear wheels and hubs. Confirm wheel hex dimensions and offset before fitting to make sure the tyre seats correctly and clears nearby components.

Installation notes: fit the tyre to a compatible RC18T rear wheel, position the insert according to your wheel method, and glue the bead when using glued tyre setups. Ensure even seating around the rim and remove any surplus material to avoid imbalance.

Tuning role: using a 40 degree insert increases carcass support relative to softer inserts, which can tighten rear response and alter mid-corner balance. These tyres are useful when testing rear traction and balancing oversteer versus bite on track.