HPI Savage 21 Clutch Shoe Upgrade Delrin Springs & Shim DSAV1215X by GPM  [DSAV1215X]

Delrin clutch shoe upgrade for Savage 21

The DSAV1215X Delrin clutch shoe kit is an aftermarket replacement for HPI Savage 21 clutch assemblies, supplied as a 1pr package. The design pairs a wear-resistant Delrin contact face with dedicated springs and a shim, letting you refine engagement without altering gearbox or motor placement.

Choose this kit when original shoes glaze or deliver inconsistent bite, or when experimenting with spring rates to refine low speed control and launch. Delrin helps keep a stable friction surface during repeated use and the shim provides a straightforward way to tweak engagement depth.

Fitting is a straight swap into the Savage 21 clutch carrier using the existing pins and mounts. After fitting, check shoe alignment and spring travel to make sure engagement and release are smooth under throttle changes. For RC-scale applications only.