The XRAY 372327 X1 Aluminum Caster Bushing Set gives hobbyists a precise way to change caster between 6 and 9 degrees for improved corner entry and mid-corner balance. Machined from sturdy aluminum, these inserts let you dial in steering response while keeping weight low for consistent lap times.
Aluminum bushings offer a stiff, repeatable mounting surface that helps maintain geometry under load, making them a reliable upgrade for racers and serious club drivers. The XRAY 372327 kit comes with three pieces so you can fit and test multiple caster positions quickly.
Small caster changes affect self-centering and turn-in feel; use the 6 to 9 degree range to match tyre grip and track layout. Test one adjustment at a time and record lap times to find the right balance for your driving style.
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