I wasn't going to post any comments about rules on forums anymore, because unless you take the time to follow the procedures and make a submission to MA, nothing will change anyway . But after a quick read of the link in the first post, I found that I agree with most of the wording, except the part about the 9 inch suspension travel limit on pre '78 bikes. I think that a 10 inch limit would be more realistic , as this was pretty much the standard in 1977 anyway . You shouldn't have to restrict the travel on a legitimate '77 model bike to meet the inferior standards of manufacturers that were lagging behind at the time. European bikes like the Husqvarna CRs and Montesa VBs are specifically mentioned as having to have their suspension limited, but there are many more '77 model bikes that exceed the 9 inch travel limit. Probably the most common and readily available '77 model bikes are the Yamaha YZ "D" which have 250mm(9.8 inches) of wheel travel advertised on the sales brochures . Something is wrong with the rules when the most common bike in the class has to be modified to meet the requirements.