Tamiya Mini 4WD Low-Profile 13mm Ringless Aluminum Ball Rollers - M4WD-30/LB by 3Racing  [M4WD-30/LB]

Light blue 13mm ringless aluminum ball rollers M4WD-30/LB for Mini 4WD

These 13mm ringless aluminum ball race rollers are offered as Tamiya-compatible replacement or detail rollers for Mini 4WD builders. The parts use a machined aluminum outer sleeve with an internal ball mechanism; the ringless layout trims the outer contact diameter compared with ringed rollers and creates a slimmer footprint on guard rails.

Fitment is specified for Tamiya Mini 4WD style roller mounts. The rollers arrive in a light blue anodized finish and are aimed at builders and collectors who want a different look and a reduced edge profile while keeping the original chassis geometry. The design omits external retaining rings and installs with standard roller screws and spacers used across common Mini 4WD chassis.

Practical note for experienced tuners: the ringless edge changes how the roller contacts track guides and guards, so recheck clearances and mounting orientation after installation. These are aftermarket detail rollers and may not be permitted in class rules that restrict nonstandard parts.