Classic Tamiya 95148 HG 19mm Aluminum Ball-Race Rollers Ringless J-Cup 2021  [95148]

Summary of the Tamiya 95148 HG 19mm rollers

The Tamiya 95148 HG 19mm Aluminum Ball-Race Rollers are designed as a targeted upgrade for Mini 4WD hobbyists. Released with the Japan Cup 2021 series, they feature a black anodised coating and blue decorative print for an understated race aesthetic. The rollers employ 520 ball bearings to ensure steady, low-resistance rotation on race day.

Fitment and construction notes

These 19mm rollers are made from lightweight aluminium to offer strength without excessive weight. They are suitable for many Mini 4WD and Mini 4WD PRO cars, though certain bodies or chassis arrangements could need small modifications for correct clearance. Spacers and screws are included to assist with mounting and alignment.

Practical effects on lap performance

Fitting the ball-race rollers can improve cornering stability and decrease friction, which supports maintaining speed through bends and on straights. The ringless profile reduces drag for smoother lane changes and is particularly useful on technical layouts demanding precise handling.