I have raised this issue before at various times and this is how I personally see it in the most simplest way that I can explain. Evolution (I believe) covers a time frame from around 1977 to 1982, or thereabouts. To lump all bikes into one class does not make a great deal of sense given the overall bike performance variations. In most parts of the world where I have researched this, the class is broken in pre/post 1981 to capture the performance variations.
In my mind I see that the definition of the classes for Evolution and Pre85 has not got to the point where the Pre78 and prior rules are at the moment. Please don’t see this as anything other than the evolution (pardon the pun) of the rule book. There is no doubt that sometime back the rules for Pre78 & prior where once like the Evolution and Pre85 are today. As a discussion point I put forward this matrix out for comment.
So as I was once ostracised & condemned by some individuals who did not take the time to understand what they were actually reading, I will spell it out in simple terms once again.
The people at MA, their state affiliates and sub committees don’t decide at a meeting one night that they are going to change the rules because they feel like it. The rules are changed/modified after the riders submit changes, in writing, to the MA sub-committee. They are then considered and discussed at all levels as to wether the proposed changes will be accepted and included in the upcoming edition of the GCR MOM. So if you want change, put pen to paper and do something about it.
When it comes to the current 2008 GCR’s and the interpretation of them. I see it something like this;
Bikes will be OEMThere was a complete thread on this some time back and the 20 plus people that responded couldn’t agree on what was OEM so what chance is there of getting this understood by the MX community in general.
Modifications converting later equipment to comply will not be allowed.Self explanatory and strait forward.
All components will be of the period the machine was manufactured.a) No linkage suspension,
b) No Disc brakes,
c) Air cooled motors.In the case of Pre85 there are a few anomalies, one being , as an example, the understanding that any bike manufactured from 1983 onwards (in general terms) can be fitted with a front disc brake regardless of the make & model as they were available in the period the bike was manufactured. Eg: The 1983 KX range was fitted with a disc brake. Some may argue that a properly set up twin leading shoe system would be better than the 1st versions of the disc, but nerveless, it can be fitted.
So whilst we have the same train of thought, where do the following components fall into the Spirt Of The ERA?
- Aftermarket Reed Blocks
- Aftermarket rear shocks with more adjustments than a play station console.
- Late model exhaust mufflers
- Hydraulic clutch kit conversions
- Performance valving options for forks that never had then in the 1st place
- Aftermarket digital ignitions
- Billet backing plates for drum brakes
- 2008 build aftermarket swing arms modelled on units that were available in the day
- Excel rims
- Heavy duty aftermarket Stainless Steel spokes
and the list goes on.
Please don’t bring out the old nugget,
“If it can’t be seen then it isn’t an issue” as it just doesn’t cut it when you talk about the “Sprit Of The ERA” and a rule book.
So I pose this question.
If Ohlins, WP, Showa, etc, were to produce a set of 46mm conventional forks specifically for the Pre85 movement, under the following conditions,
- The forks were not based on any specific fork as made available to the OEM’s
- The forks were never fitted to any production bike.
- They are sold only as a aftermarket accessory.
Now before you answer the question, think about the availability of rear shocks and the various combinations that are available today, that were not available back in the day.
Would these forks be o/k to use?
The point Magoo raises is valid. There is no reason that a Pre78 model bike (using the GCR 18.7.6.1 refering to machines being acceptable where the model remains unaltered after this date) could be raced concurrently in Pre78, Evolution and Pre85 classes. The fact that Shaun rode an EVO bike in the Pre85 class at the Nationals and won both classes already proves this but it does highlight the issue, should bikes be able to compete upwards in the class classification. By the way, Shaun could ride a postie bike in that class and still win.
The other issue that I think needs attention is the inclusion of age classes for Evolution and Pre85 which is not permitted in the 08 GCR’s