Tagged: 250 National

250 National

250 National is a long and short circuit gearbox class using 250cc single-cylinder engines, in practice the Honda CR250 is usually used. There are also sub-classes for 450cc four stroke engines and also for engines up to 180cc to accommodate the IAME 175cc Super Shifter. It is...

Super 4

The ABkC Super 4 series is the main national short-circuit gearbox championship in the UK, running KZ2 and 250 National alongside club meetings or the LGM. It’s organised by the same team as the NKF series.