Age & Types of Machines
CRMC eligibility is based on the type and age of the machine, in the following Types and Age classifications. Such machines will normally have been of a type raced in Europe in the relevant period. Other machines that do not meet this criterion may be referred for inclusion by the CRMC committee
Click on the type headings below
Here are the CRMC categories of machine used
Thoroughbred machines as raced in Grand Prix, TT and certain short circuit racing.
Machines built for racing and of a type raced during the period (as defined below) using as a basis engines not qualifying for Grand Prix together with certain machines which do not meet Sports or Production specification. Included in Post Classic is the Air-Cooled Class for machines up to 500cc.
Essentially unmodified production road and sports machines.
Machines 501cc and above built for racing and of a type raced during the period (as defined below) using as a basis engines not qualifying for Grand Prix together with certain machines which do not meet Production specification.
Machines up to 1300cc that meet the formula specifications contained in the Eligibility Rules, which you can read in the document library.
Post Classic 750 Superstock is designed for 750cc production based machines manufactured and raced pre 1987, such as the Yamaha FZ750 and Suzuki GSXR750.
Machines solely for Parade use which in the opinion of the management committee will add variety and interest to CRMC parades even though they might not specifically meet the eligibility requirements. Such machines will not normally be eligible for racing.
Click on the Age and Eras headings below
Here are the CRMC years (or ages and eras) used
All machines = 1st January 1945 and 31st December 1963
Four stroke machines = from 1st January 1964 to 31st December 1972
Two stroke machines = from 1st January 1964 to 31st December 1967
From 1st January 1973 for four stroke machines to the date stated below according to engine size
From 1st January 1968 for two stroke machines to the date stated below according to engine size
100cc up to 125cc single or twin cylinder = 31st December 1986
126cc up to 250cc single or twin cylinder = 31st December 1984
251cc and above single, twin, triple, or four cylinders = 31st December 1981
126cc and above single or multi-cylinder machines = from January 1st 1982 to December 31st 1986
Note: Any 50cc or 125cc Grand Prix machine, whether two or four stroke, is eligible for Classic if constructed before 31st December 1972.
A new Post Classic Supersport class for production-based machines manufactured and available prior to 1st January 1995.
400 Supersport: Maximum Capacity is 400cc for 4 strokes & 250cc for 2 strokes
600 Supersport: Maximum Capacity is 600cc for 4 cylinder 4 strokes, 750cc for 2 cylinder 4 strokes & 500cc for 2 strokes
750 Superbike: 4 stroke only, Maximum Capacity is 750cc for 4 cylinder & 1000cc for 2 cylinder.
Sidecars
Go to the Sidecar page for more details
If you have any questions please contact one of our Eligibility Officers:
Classic Eligibility Form (including Parade)
For all 4-stroke machines manufactured before 31/12/1972 and 2-strokes before 31/12/1967, plus ALL parade bikes.
Post-Classic Eligibility Form
For all 4-stroke machines manufactured after 01/01/1973 and 2-strokes after 01/01/1968.
Sidecar Eligibility Forms
CRMC Championships More about our Classes & Championships
We do our best to fill the grids with compatible machines that will be competitive against each other. Obviously, this very much depends on the machines that enter each individual race event but we think you'll find that a good mix and variety of machinery makes for good, close and competitive racing at CRMC events.
Find out more about the CRMC Championship Classes
Race & Parade Motorcycles + Sidecars Eligibility Forms
Before applying to the CRMC for an Eligibility Certificate for your machine, please note:
Please read the current version of CRMC Eligibility Booklet and the section relating to your particular machine (click the link above)
An Eligibility Certificate or temporary eligibility will be required prior to racing at CRMC Events. It will be usual for the Eligibility Officer to physically inspect the machine prior to full eligibility being granted.
The Eligibility Certificate when issued remains the property of the CRMC and the certificate may be revoked for any discrepancies to recorded detail or changes to the machine that have not been agreed and recorded by the CRMC Eligibility Officer.
All members and applicants must abide by the CRMC Rules (click here - link will open a new window)
CRMC Eligibility