Simons for pre 78?

[Snowy 76]

Are Simons forks pre 78 legal,??? not relly sure when thay become available?

[JohnnyO]

Yes they were available in 1977 but you'll have to restrict the travel to 9"

[motomaniac]

Yes they were available in 1977 but you'll have to restrict the travel to 9"

yes what was available in 77 isnt legal in pre 78 competition , almost every Euro bike from 77 , YZ's RM125's and almost all aftermarket forks and fork kits from 1977 are not legal for  our pre78 class. Phhhffft!

[Snowy 76]

Thanks for the Reply`s , So I have a Yes and No?? , would hate to build a bike and have  drama`s at a Aussie title

[tmman]

 whats the point of this class!!!!! if nothing that came out of the factory standard is compliant?? so how does one go about unmaking what the factory did to satisfy the nob jockey hierarchy?? are emulators etc banned??

[JohnnyO]

Yes they were available in 1977 but you'll have to restrict the travel to 9"

yes what was available in 77 isnt legal in pre 78 competition , almost every Euro bike from 77 , YZ's RM125's and almost all aftermarket forks and fork kits from 1977 are not legal for  our pre78 class. Phhhffft!

I think you'll find that's not correct Brent, all 1977 model mx bikes are legal for pre '78. (i've just double checked the rule book)
I'm also sure Simons forks are ok as long as they are restricted to 9".

[tmman]

hey jonny o is it correct to assume that all suspension no matter what is deemed legal as long as it is within the period and set to 9" travel?? and what of emulators n shox that were made last week??

[JohnnyO]

hey jonny o is it correct to assume that all suspension no matter what is deemed legal as long as it is within the period and set to 9" travel?? and what of emulators n shox that were made last week??

Yeah pretty much except emulators are not legal, the parts used for pre '78 have to have been available in that era.. Simons forks were available emulators weren't.
Shock selection is open to anything available now as long as it has no more than 9" wheel travel.

[motomaniac]

Yes they were available in 1977 but you'll have to restrict the travel to 9"

yes what was available in 77 isnt legal in pre 78 competition , almost every Euro bike from 77 , YZ's RM125's and almost all aftermarket forks and fork kits from 1977 are not legal for  our pre78 class. Phhhffft!

I think you'll find that's not correct Brent, all 1977 model mx bikes are legal for pre '78. (i've just double checked the rule book)
I'm also sure Simons forks are ok as long as they are restricted to 9".

Did they change it ? It used to specify that you had to limit the travel on husky's etc and VB'S weren't allowed. all bikes had to be limited to 9" .All that I wrote above has more than 9" travel.I refer to MOMS 18.7.7.1 c
My Steve Wise replica will never race the NatsIN PRE 78.Nor my MC5 or my YZ400.

[JohnnyO]

Yes i think they must've changed it.. it even says the VB Montesa is legal with travel restrictors

[motomaniac]

Yes i think they must've changed it.. it even says the VB Montesa is legal with travel restrictors

Have you got 011 or 012?

[Montynut]

Emulators and modern shocks are legal in all eras as they are internal and not visible. Fork and shock internals are free the same as engine internals otherwise many many bikes could not be kept on the track.

VB 250 & 360 Montesa models have been listed for three years now (I think certainly two years).

All bikes are restricted to 9' total travel. I agree that it should be more say 10.5' front and rear as several makes had more than 9" travel in '77 but the rules say 9".

[motomaniac]

Emulators and modern shocks are legal in all eras as they are internal and not visible. Fork and shock internals are free the same as engine internals otherwise many many bikes could not be kept on the track.

VB 250 & 360 Montesa models have been listed for three years now (I think certainly two years).

All bikes are restricted to 9' total travel. I agree that it should be more say 10.5' front and rear as several makes had more than 9" travel in '77 but the rules say 9".

I haven't got the latest but 2010 says "VB  montesa's see Grand prix classes" same as last few years.Pretty interesting since we have never had a GP class over here. It also says early 9 "Simons forks are allowed but doesnt mention the later Simons ,and says the that FOX are not allowed.

Pretty ridiculous IMO , unless you have a stock KX,CR,RM250/370 or CZ you need to detune you bikes suspension to suit the rules.

[motomaniac]

Emulators and modern shocks are legal in all eras as they are internal and not visible. Fork and shock internals are free the same as eng.

I haven't found that clause in MOMS yet , still reading.

[Montynut]

Emulators and modern shocks are legal in all eras as they are internal and not visible. Fork and shock internals are free the same as eng.

I haven't found that clause in MOMS yet , still reading.

Exactly no were in the rules does it say they can not be used. It does not say you can put new springs in your forks made out of the latest alloys or a 2010 model piston in your engine if it fits but it is perfectly OK. Is a Prox rod kit designed and built yesterday for a '77 RM250 legal? 100% legal but the rule book does not say it is legal . CZs, Maicos did not come with modern programmable ignitions? 100% legal.

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

VB 250 360 Montesa models added in 2011 it appears as I wrote the submission in late 2009 for discussion in 2010 through MNSW to have them included as no one seemed to know what the hell the 'GP Class" as all about