Mini 4WD Low-Profile 19mm Roller - M4WD-32/PK by 3Racing  [M4WD-32/PK]

Compact pink 19mm ringless aluminium rollers M4WD-32/PK

This ringless 19mm aluminium ball race roller is a lightweight, machined option aimed at experienced Mini 4WD builders. The absence of an outer ring reduces diameter and contact, helping with narrow-clearance setups while the pink finish suits matched colour schemes.

Roller design uses ball seating within an aluminium housing; correct installation requires checking alignment on the chassis roller posts and ensuring there is no interference with side stays or stabiliser arms. Common securing methods include rivets or low-profile screws paired with thin washers to preserve rotation.

Compatibility guidance: intended for Mini 4WD platforms that accept 19mm rollers. These are decorative and replacement rollers rather than items that change motor or gearing performance. Always verify post size and clearances prior to installation.