Race Classes

Class conditions are being updated for 2025.

Production based 250cc two stroke and 400cc four stroke. Moulded treaded tyres. 

Open up to 500cc.

Slick tyres permitted 

Open 401 to 650cc four cylinder, 800cc three cylinder, 900cc twin cylinder. Slick tyres permitted.
National and above race license holders 

As National 600, but for Clubman or below race license holders only (as of 1st March for current year)
Previous Clubman 600 Class Champions are not eligible.

Open to four stroke machines 700cc and above. Slick tyres permitted. Guest riders welcome but will not score Championship points.

Class conditions are being updated for 2025.

Open to all machines 250 GP and above (excluding Junior Supersport). Slick tyres permitted.  
All competitors score Championship points.

Open to all four stroke single, twin and three cylinder machines. Slick tyres are permitted.  

Four stoke, twin cylinder production based machines up to 650cc including up to 820cc air cooled twins. Max power 72bhp  

Class conditions are being updated for 2025.

Non-fuel injected machines manufactured up to 2002. 401 to 600cc. Slick tyres are permitted.

Veterans for riders over 40 year old on 1st March in current year 

Incorporated into the Phoenix Open races at our Castle Combe event. 

Racing for the Rodney Gooch Trophy and a cash prize fund.

Incorporated into the Phoenix Open races at our Pembrey event.

Racing for the Lee Davies Motorsport Trophy and a cash prize fund.

For competitors who have gained their FIRST race license since January 1st 2024.

There is a reduced entry fee for this class, it can only be entered as a 2nd ride.

Dispensation may be given to competitors who held a license prior to Jan 1st 2024 who have completed no more than 5 events. Riders must apply for such dispensation in writing to raceadmin@ngroadracing.co.uk