Pre 78 Rule changes

[motomaniac]

Cool, thanks, I'll pull them apart and see what I can do, might file the cones down 3mm also if they cover the comp damping holes?
[/quote

John if you are intending to race local why bother ? Dont hack up your forks .If you really have to do it just place a 3mm nylon washer on top of  the top out spring  or do the Johnny O way and replace the negative spring with a car valve spring. you just need to somhow find a valve spring with the matching ID/OD and that is 3mm longer than your RM negative spring at full compression

[09.0]

It's a valid point to leave a bike as it came even if it has 11" of travel, no doubt. I also see the thought process of the rules as they stand as well. I still say leave as is.
On pre 75, it would be a tragedy to have 74 models in with pre78's. It's tragic enough that '75 models have to mix it with them. Having said that I will be running a '75 model 250 in pre '78 and don't believe I will be at much if any disadvantage .  

[Davey Crocket]

Some very good points there Tahiti red.....leave it as it is I say.....good point about banning the Novation swingarms.....they aint like anything from back in the day.

[FDR]

The Pre 78,9 inch limit to suspension travel rule is ridiculous, Imagine telling riders of standard bikes back in 77,you must restrict the travel to 9 inches on a bike that had 10 inches travel standard.
Viper & VCM do not enforce the rule and all works well, people simply ride the bike brand they prefer.
Competing bikes are checked to ensure components are period correct, simple fromula has worked well for a long time.
Seeing the Husky rider at the titles be disqualified was a disgrace, he rode the bike superbly and deserved his just rewards.
VCM committee are preparing a rule amendment and will send to MA for hopefully some discussion.

[Iain Cameron]

Ok Im for the run it as it was made . but If I want to run in the ACT Nats next year how do I fix my YZ d's 250 and 400 to comply. Ps  with my skills it wouldn't matter if I had 12" of travel . Iain

[JohnnyO]

The Pre 78,9 inch limit to suspension travel rule is ridiculous, Imagine telling riders of standard bikes back in 77,you must restrict the travel to 9 inches on a bike that had 10 inches travel standard.
Viper & VCM do not enforce the rule and all works well, people simply ride the bike brand they prefer.
Competing bikes are checked to ensure components are period correct, simple fromula has worked well for a long time.
Seeing the Husky rider at the titles be disqualified was a disgrace, he rode the bike superbly and deserved his just rewards.
VCM committee are preparing a rule amendment and will send to MA for hopefully some discussion.

We're not in 1977 we're in 2012 and are trying to preserve an era in vintage racing.
Pre '78 means '75,'76 & '77 model bikes and the 9" rule at least gives the '75 & '76 models a chance to be competitive otherwise it'll become the 1977 class...
The full grids at the Nationals tells us something... The pre '78 class is OK!

[Canam370]

Having said that I will be running a '75 model 250 in pre '78 and don't believe I will be at much if any disadvantage .  

A '75 model won the Pre -78 title in 2010    Leave well enough alone.

[motomaniac]

The CVRG got it wrong with their pre '75 regs so there's a distinct possibility that a similar thing has happened when the AHRMA rule committee sat down to work out the pre '78 regs. Maybe they didn't research the eligibility of all bikes as well as they should have

Excuse me Firko but the AHRMA wrote regs for what they call "the historic" class not our pre78 class.We took part of their rules and gave it to our pre 78 ,without research or consideration perhaps. They have a Historic class G.P class etc which are mostly governed by dimension and tech ,similar to our EVO class.They hardly need to research eligibility when they were creating a class mostly on spec .If we had Historic (9") GP (10.10.5") evo ( 12" ,12"+) there wouldnt be a problem or alternatively pre77,pre79 (excluding 78 cr250's) and EVO.

[motomaniac]

The Pre 78,9 inch limit to suspension travel rule is ridiculous, Imagine telling riders of standard bikes back in 77,you must restrict the travel to 9 inches on a bike that had 10 inches travel standard.
Viper & VCM do not enforce the rule and all works well, people simply ride the bike brand they prefer.
Competing bikes are checked to ensure components are period correct, simple fromula has worked well for a long time.
Seeing the Husky rider at the titles be disqualified was a disgrace, he rode the bike superbly and deserved his just rewards.
VCM committee are preparing a rule amendment and will send to MA for hopefully some discussion.

I am blessed .Thanks to all the Viper and VCM committee members past and present for your efforts and approach.You make VMXing Fun.

[JohnnyO]

The Pre 78,9 inch limit to suspension travel rule is ridiculous, Imagine telling riders of standard bikes back in 77,you must restrict the travel to 9 inches on a bike that had 10 inches travel standard.
Viper & VCM do not enforce the rule and all works well, people simply ride the bike brand they prefer.
Competing bikes are checked to ensure components are period correct, simple fromula has worked well for a long time.
Seeing the Husky rider at the titles be disqualified was a disgrace, he rode the bike superbly and deserved his just rewards.
VCM committee are preparing a rule amendment and will send to MA for hopefully some discussion.

I am blessed .Thanks to all the Viper and VCM committee members past and present for your efforts and approach.You make VMXing Fun.

You guys are talking about Club days and the thread is about the Nationals. We don't have any eligibility checks at QVMX club days either and nor do any clubs to my knowledge.
Rules are enforced at Nationals as they always have been. No use bitching about it now cos someone got caught out...

[Nathan S]

The Pre 78,9 inch limit to suspension travel rule is ridiculous, Imagine telling riders of standard bikes back in 77,you must restrict the travel to 9 inches on a bike that had 10 inches travel standard.
Viper & VCM do not enforce the rule and all works well, people simply ride the bike brand they prefer.
Competing bikes are checked to ensure components are period correct, simple fromula has worked well for a long time.
Seeing the Husky rider at the titles be disqualified was a disgrace, he rode the bike superbly and deserved his just rewards.
VCM committee are preparing a rule amendment and will send to MA for hopefully some discussion.

We're not in 1977 we're in 2012 and are trying to preserve an era in vintage racing.
Pre '78 means '75,'76 & '77 model bikes and the 9" rule at least gives the '75 & '76 models a chance to be competitive otherwise it'll become the 1977 class...
The full grids at the Nationals tells us something... The pre '78 class is OK!

Correct me if I'm wrong, but the 2012 Classic Nationals was the first time a pre-78 bike has been tested and excluded for excessive suspension travel.
That being the case, the rules have effectively allowed stock 1977 models with over 9" of travel to compete for the previous five years of Nationals.
Those bikes have not dominated the class.
There is no reason to think that changing the rule to "9/9" or standard travel (whichever is greater)" will have any unintended consequences - its nothing more than enshrining what has been happening for years.

 

[09.0]

The rules were always there. The difference is it wasn't up to the competitor to protest this time. Everyone was just checked due to instances in the past.
So with the rule change can I run my 11" Simons without restricters? I should be able to if a husky can.....
( on my rm125b).

[motomaniac]

You guys are talking about Club days and the thread is about the Nationals. We don't have any eligibility checks at QVMX club days either and nor do any clubs to my knowledge.
Rules are enforced at Nationals as they always have been. No use bitching about it now cos someone got caught out...
[/quote]

Slakewells first post was about the idea of writing to the MA. Anyway us southeners aint talking about club days, we are talking about our MA affiliated series that use's the MA's rule book.

[Simo63]

Ok Im for the run it as it was made . but If I want to run in the ACT Nats next year how do I fix my YZ d's 250 and 400 to comply. Ps  with my skills it wouldn't matter if I had 12" of travel . Iain

You do what I did Iainyz, you spend the $$money and have it lowered to comply.  Believe me if you spend the moneyin the right places the bike will be better for it.  Standard they weren't much chop to be  honest and you can gain a lot by doing suspension work to the YZ D model.

[09.0]

And when does this subject come up? When there is an issue at a NATIONAL event.