Simons for pre 78?

[Tahitian_Red]

With the rules mentioning "GP class" it would seem the pre-78 rules were modeled after AHRMA's Historic class.  Our rules have some peculiarities also.  I've always thought the rule should read must have less than 10" of travel.
 

[TM BILL]

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But you can not fit a '78 RM125C upper triple clamp to '77 RM125B as it technically contains a visble performance gain of offset bars and rubber mounted bars. Go figure

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I would have thought that the clue was PRE 78 so parts from a 1978 RM 125C  are out 

I suppose this goes back to the Conondale titles where people were running complete 125C front ends in their B models and a couple of blokes were running C models with B tanks .

The pre 78 rules are pretty straight forward. However i struggle with the stupid rule about having to limit travel on certain models  .If it was built in 1977 and designated a 1977 model then let it in , the fact that some manufacturers had more travel in the day than others is the way it was 
If it was an advantage then it should be an advantage now 

Bolting parts on from later models though is bullshit , if Suzuki B models had 9" travel in the day then thats what should be allowed , if you could buy Simons , Fox , Acme , or woolworths forks with 15" of travel in 1977 then they should be allowed in

Easy you could buy it in 1977 let it in if not its out (consumables excepted )

[GMC]

I don’t agree with the 9” restriction for Pre 77 either but one thing about it is that it makes the 75 & 76 models more feasible.
You don’t hear owners of 75 & 76 models complaining about the rule.
Allowing 10.5” travel would pretty much make 75 models obsolete in the class
And yes I know a good rider will do well on anything but anyone looking for a bike will overlook any model they feel will disadvantage them.

I thought the oddities in our rules being caused be using AHRMA rules as the basis was common knowledge

[TM BILL]

I don’t agree with the 9” restriction for Pre 77 either but one thing about it is that it makes the 75 & 76 models more feasible.
You don’t hear owners of 75 & 76 models complaining about the rule.
Allowing 10.5” travel would pretty much make 75 models obsolete in the class
And yes I know a good rider will do well on anything but anyone looking for a bike will overlook any model they feel will disadvantage them.

I thought the oddities in our rules being caused be using AHRMA rules as the basis was common knowledge

I hear you Geoff  but why call it pre 78 when a number of bikes from the factory cant be entered without reducing the technology that the manufacturers sold them with 

Make it a pre 77 class 

[Marc.com]

I hear you Geoff  but why call it pre 78 when a number of bikes from the factory cant be entered without reducing the technology that the manufacturers sold them with 

Im with Bill, what ever happened in 77 stays in 77, so if the 77 Montys had a little extra travel under their skirts more power to them. If this gives a VB a distinct advantage then we should see mobs of em at the sharp end which is fine with me. Besides suspension travel is over rated, quality suspension however is not, set of modern Ohilins and 'tuned' forks will make much more of a difference than an extra inch... well in the suspension game anyway.

[motomaniac]

With the rules mentioning "GP class" it would seem the pre-78 rules were modeled after AHRMA's Historic class.  Our rules have some peculiarities also.  I've always thought the rule should read must have less than 10" of travel.
 

Yes ,so it seems .The issue I have with our rules are that they have straight copied the AHRMA's reg's but only half of them ,leaving big holes in the regs over here.

[Rossvickicampbell]

Marc - he he he  .  I agree - I suffer in the pre 75 on the suspension restriction also and as Geoff knows I need all I can get.  JO - I am not arguing with you as it may have been in an older MOMS but wasn't it either FOX or SImons that were specifically listed as not being acceptable - or maybe just the later versions which makes sense.

cheers

[motomaniac]

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I hear you Geoff  but why call it pre 78 when a number of bikes from the factory cant be entered without reducing the technology that the manufacturers sold them with 

Make it a pre 77 class 

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no problem but what then would you do with all the 77/78 models with 9" + suspension ? Put them up against EVO bikes with about 3" more travel and other mechanical advantages like tls and fat forks?

[tmman]

tm bill seems to have it covered if it was made then why can't it run??? i'm pretty sure the stewards of the day never banned any bike or person for having initiave,,if so we'd still have 4"of travel.. it doesn't really matter what suspension travel is or isn't allowed the point is how do you justify emulators n late model shox.. is the concept outta sight outta mind prevailing.. so if i modify a set of cartridges to fit thats intirely legal in that case 5" will suffice..

[Marc.com]

wasn't it either FOX or SImons that were specifically listed as not being acceptable - or maybe just the later versions which makes sense.
cheers

Fox turned up later so not pre 78 legal ..... plus they are modern 43mm forks so even with reduced travel would still offer quite and advantage. Nothing too special inside the Simons, they are just well made.

[motomaniac]

wasn't it either FOX or SImons that were specifically listed as not being acceptable - or maybe just the later versions which makes sense.
cheers

Fox turned up later so not pre 78 legal ..... plus they are modern 43mm forks so even with reduced travel would still offer quite and advantage. Nothing too special inside the Simons, they are just well made.

The MOMS specifically state that the Fox's are not legal , they also state that "early model simons are with 9" travel" and stae that nothing over 38mm is legal .Later Simons are over 38mm and have 10"+ travel.

[HVA61]

The Simon's are pretty much the same as maico forks of the same era .

78/79 maico springs fit straight in

[Montynut]

The point that '75 and '76 models are disadvantaged apply in every ERA. A '71 model in many cases are not as competative as the '74 model. In Pre75 there is also a travel limit which disadvantages some bikes as they had far more back in the day. Those few models would if allowed to run with full travel make everything else uncompetative.

If you allowed a '77 Montesa or Maico to run with 10.5" travel many people would then modify other bikes to the same just as they did in the day so why change.

The reason I say 10.5" as that was the amount of travel the Montesa, Husky, Maico along with anything that had Marzocchi forks had in 1977. Other bikes had more than 9" of travel either front or rear.

The rules are what they are either go through the process of change or live with them.

[HVA61]

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77 390 auto , non standard but has Simons with maico fork springs

[motomaniac]

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77 390 auto , non standard but has Simons with maico fork springs

not early model Simons