Minis use the same valving technology as their big brothers. Pro-Action has designed, and manufactures 4 different valve bodies for Showa, KYB and WP fork and shock systems. They are just "fun sizes" of the Pro-Action V-2 Valve Body.
Pro-Action Rocky Mountain has been fortunate to work with some of the fastest racers in Colorado. Airola, Dilley, Douglas, Kramer, McClure and Schindler's.
The biggest challenge with the kids is getting feed back from them, learning their terminology, and getting them to start using the correct words to describe what their bike is doing. This is a long process! BUT, this creates a foundation of understanding and trust for the rider and myself as they progress into big bikes.
The absolute #1 issue with minis is proper spring rates. Adjusting the pre-load on the bike WILL NOT HELP your rider, and most of the time will put your rider in physical danger.
Most 85's are sprung for a 100 lbs rider. If your rider is 75 lbs, you may want to cheat the system and not install the correct springs. I sometimes hear, "they will grow into it". In our example, 25 lbs, equals 25%. So lets put that into adult terms. It would be like a 150 lb adult riding a stock 450 cc bike. That is beyond stiff! That is beyond safe!
Kicker Arena Cross
Results are great, but sometimes just being there is better.