Tamiya 69579 Japan Cup Junior Circuit Lane Change & Extension Set Complete White  [69579]

Upgrade your Mini 4WD course with the Tamiya 69579 extension

The Tamiya 69579 Japan Cup Junior Circuit Lane Change & Extension Set supplies modular track additions that let racers alter lap dynamics and test different racing lines. It is a practical choice for enthusiasts aiming to introduce deliberate overtaking zones and speed runs.

Component overview and track function

The kit features a mix of track parts that attach cleanly to most Mini 4WD systems. The white finish keeps a neutral palette while contributing useful race features. Included items are:

• Two straight track pieces for acceleration and top speed tests
• A single wave piece to assess balance and rebound
• A lane change assembly with bridge hardware to force position changes

Integration and simple construction

Built to be compatible, this extension pairs with the Curve Section Set sold separately to form longer and more technical layouts. Clear instructions and the needed fasteners are provided so assembly and routine maintenance remain straightforward.

The Tamiya Japan Cup Junior Circuit Lane Change & Extension Set is a useful addition for Mini 4WD hobbyists who want modular expansion and tactical track elements that blend with existing systems.