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

Quick look at the Tamiya 95148 HG 19mm Aluminum Ball-Race Rollers

The Tamiya 95148 HG 19mm Aluminum Ball-Race Rollers are a purpose-built upgrade for Mini 4WD racers. Released as part of the Japan Cup 2021 commemorative line, they sport a black anodized finish with blue decorative printing for a clean race-ready appearance. Each roller uses 520 ball bearings to keep rotation smooth under high-speed conditions.

Build notes and compatibility tips

Constructed from lightweight aluminium, these 19mm rollers balance strength and low mass for reliable durability. They work with most Mini 4WD and Mini 4WD PRO cars, though some chassis or body tweaks may be needed for certain models. The set arrives with spacers and screws to simplify mounting and setup.

Track performance and handling

Fitting these ball-race rollers can noticeably improve cornering stability and cut rolling friction, helping to preserve speed through bends and on straights. Their ringless layout reduces drag for smoother line transitions, making them especially handy on technical tracks where precision matters.