These Delrin front and rear ridge rims from GPM are produced to support stable handling on Mini-z AWD platforms. The 1.5mm offset and 8.5mm rim width maintain predictable scrub radius and tyre contact patch under load, while the Delrin material offers low deformation and repeatable performance across multiple runs. Suitable for hobbyists tuning suspension and alignment settings, these rims are a straightforward upgrade to refine roll behaviour without altering tyre compounds or gearing.