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

Rear narrow radial tyre for RC18T

This tyre set is an RC-scale replacement intended for the Associated RC18T rear axle, supplied as a matched pair with a 30g insert. The rubber narrow radial profile is designed to help refine rear traction and on-track handling for 1/18 short-course cars.

Fitment and mounting:

• Confirm compatibility with Associated RC18T rear rims before fitting the tyres.
• Insert the 30g core into each tyre prior to seating to ensure an even fit and balance.
• Ensure the tyre is seated correctly on the wheel, check for smooth rotation and trim bead where necessary for clearance.

Setup and handling notes:

• The 30g insert increases rear stability and smooths traction delivery compared with a tyre run without an insert, which can reduce oversteer on loose surfaces.
• The narrow radial shape encourages predictable turn-in and can be chosen when a crisper rear response is required.
• Make incremental setup changes and alter only one variable at a time to reliably assess handling impact.

Maintenance guidance:

• Inspect tread and sidewalls for cuts or deformation before each session.
• Clean off stones and debris after running and allow tyres to cool before storage.
• Replace inserts if they show uneven compression, splitting or permanent deformation.