London GP Winter Cup 2025

Hurray! Another Mini 4WD race is coming in December 2025 🙂 In case you missed it, SpeedZone is organising a Tamiya Mini 4WD race in London on Saturday 20th December 2025. Event: London GP Winter Cup Location: Darksphere, Shepherds Bush, London If interested, please reserve your place by filling up the registration form below.https://forms.gle/ggktb8g4dPYw8siT7 #mini4wd, […]

Ultra Autonomous Braking in action

Here is a screen recording of our A.I. Mini 4WD simulator showing a video we captured with a smartphone and playing back the data recorded by the on-board computer. The first part of the recording is showing the action in real time. Whereas the second part, we dialled down the playback speed in our simulator […]

Introducing Ultra Autonomous Braking!

Whilst Son Goku has mastered Autonomous Ultra Instinct, our A.I Mini 4WD has gained a new ability too. We called it Ultra Autonomous Braking. It has always been a dream, and finally we have made this dream comes true. Previously, the braking point was calculated (pre run) on our laptop based on input such as […]

Which roller is the fastest?

Based on your feedback, we have improved the comparison chart by adding some photos of the rollers. We hope this makes it easier to read. Roller with the least friction is the fastest but certainly there are other important factors to consider too. Read the full report find out more. We used science to test […]

Motor magnets strength measured

Recently saw a post in a Mini 4WD group TAMIYA田宮四驅車情報站 on FB about measuring magnet strength using the “Compass” App. I am not sure how this can be done with the compass app but we did use a Magnetometer App to do some measurements before. We tested 9 motors: Stock double shaft (PRO), Rev Tuned […]

Slope Jump Section mapped

We have recently mapped the curvature of the slope on a Tamiya Junior Circuit Slope Section in order to study the effectiveness of brakes and flight trajectory. After a painstaking process of taking measurement points and cross checking, we have the result (in mm accuracy)! While many would assume the curvature is symmetrical, meaning the […]

How good are your brakes?

A Tamiya Mini 4WD with a rear brake mount and grey brake sponge

How good are the brakes on your Mini 4WD? Do they perform as good as expected? We have a model to help you plan and estimate your setup.