125 cc Gearbox Class
While some competitors use RS Honda's, we also a number of Rotax engines, A 6 speed gearbox is common and all use 4 wheel disc brakes. Most are now running full aero-dynamic body work. These karts will reach speeds up to 200kph..
Purchase Costs A new 125cc gearbox kart about $18000-$22000.
A good secondhand kart about $5000-$12000.
The 125cc gearbox class probably has the most varied engine makes of all classes.