Mini 4WD Ringless 19mm Aluminium Ball Race Roller M4WD-40/PK by 3Racing  [M4WD-40/PK]

19mm ringless aluminium ball race roller, pink anodised

The M4WD-40/PK is a 19mm ringless aluminium ball race roller offered as a lightweight option for Mini 4WD chassis. The pink anodised finish is intended for collectors and tuners who prefer a compact, low-mass roller profile without an outer flange.

Recommended for experienced modders who manage tight clearances, the part is suitable where 19mm rollers are used; verify bearing inner diameter and axle compatibility before fitting. The anodised aluminium surface resists normal handling wear but will show abrasion under repeated contact with rough guide rails.

For upkeep, inspect bearing seating and shaft runout when replacing rollers. The coloured finish makes it a neat cosmetic choice for display models while the reduced mass can be useful in tuning parts inventories.