4 HOUR CLASSIC ENDURANCE RACE DONINGTON PARK 

It is always by far the best policy to ring or email the contacts at the bottom of this page for advice before embarking on any expense or work. They will be only too pleased to offer advice and guidance to anyone building and preparing a bike to race in the Endurance Legends 4-Hour Endurance Race 
 
Endurance Legends eligibility allows motorcycles from the Classic Racing Motorcycle Club (CRMC) and European Classic Series (ECS) and others which meet the eligibility guidleline set out below 
 
Endurance Legends retains the right to interpret any eligibility guidelines as they see fit 
ENDURANCE LEGENDS ELIGIBILITY GUIDELINES 

GENERAL ELIGIBILITY 

The latest cut off date is 31 December 1986 
Any bike holding current Classic Racing Motorcycle Club (CRMC) eligibility and within the capacity classes below is eligible for the Endurance Legends 4 hour classic endurance race 
Any bike holding current European Classic Series (ECS) eligibility and within the capacity classes below is eligible for the Endurance Legends 4 hour classic endurance race 
‘Fast Track’ eligibility will be offered to entrants but contact must be made before the meeting 
‘One Event’ eligibility may be granted if the organisers feel the machine in question would enhance the grid even if it does not meet the usual eligibility criteria 
Only machines which have been issued with an Endurance Legends / CRMC / ECS Eligibility Certificate can race in the Endurance Legends 4 hour endurance event 
 
 

SPECIFIC ELIGIBILITY 

ENDURANCE LEGENDS CLASSES: 
 
Endurance Legends F1 (751cc – 1300cc) shall be run as two classes: 
F1 Classic: 2 valves per cylinder 
* The minimum tyre diameter is 17” and maximum tyre width is 180mm 
 
F1 Superbike: 4 valves per cylinder, air-cooled only, no Suzuki EFE bikes or cylinder heads 
* The minimum tyre diameter is 18” and maximum tyre width is 160mm 
 
Endurance Legends Formula 2 (247cc - 750cc)  
Air-cooled, or Liquid (oil or water) cooled, 2 stroke or 4 stroke engines 
* Wheels may be 16, 17 or 18 inch diameter but restricted to a maximum rim width of 3.5” for the front and 5.5” for the rear 
The appearance of all machines must represent the period it raced in. Thus bodywork must have period appearance, eg: fairings and seat units based on MotoGP units are not allowed 
Electronic dashes, throttle position sensors, slipper clutches, quickshifters, USD forks, radial or 6 piston calipers and the like are not allowed 
Although not strictly an eligibility issue, slick tyres, hand cut tyres and rain tyres are not allowed. Treaded tyres as supplied by the manufacturers only 
No modern, non period engines can be used 
No flat slide carburettors can be used, unless they were original fitment when new 
 
 
EUROPEAN CLASSIC SERIES CLASSES: 
 
Maxi Classic 
Classic 1000 
750 TT 
750 
 
2017 ECS Sporting Rules and Technical Rules to follow 
 

ELIGIBILITY CONTACTS 

Endurance Legends' Sponsors: