If you remove the mudguards and change the wheels to fit grippy motorbike race tyres you are in Racing class. Would have to spend a lot more money on the engine then to be competitive.
I run in Standard Class and nippymog is in Touring Modified due to his upgrades. You pays your money and takes your pick...but whatever class you're in, its fantastic fun doing competitive motorsport in the M3W (5 Speeder)
Its our race debut on Sunday at Cadwell Park...which looks daunting!!