it started as a middleweight class with "SOME" 1000 cc twins thrown in and rules written for specific bikes and years.Originally Posted by dave.gallant
I am arguing that it should be either:
middleweight rules with nothing over 855cc's (with no specific rules for specific bikes) no inline 4's
OR
heavyweight with everything 748cc-1000cc twins and triples (with no specific rules for specific bikes) no inline 4's