Your complete hub for mini 4WD racing. Calculate speeds, manage tournaments, and explore race rulesets.
Calculate your mini 4WD's theoretical top speed based on gear ratio, tire diameter, and motor RPM.
Try Calculator →Organize and manage mini 4WD events, brackets, and competitions with ease.
Coming SoonExplore and manage different racing classes: Open Class, B-MAX, Tuned Class, Box Stock, and more.
Coming SoonBuilt for the mini 4WD racing community