Should 4 strokes be given more displacement in pre 74?

[Slakewell]

Say you can bore and stroke your XL 125 to 175 for example and race the pre 74 125 class?
Would you care if you got beaten by one?

[LWC82PE]

I dont really think thats fair. If you look in MOMS they have an allowable tollerance to allow for rebores and it think its somewhere around 3% roughly. 175 is too much and would require it to go in the 250 class i reckon. But if you dont tell anyone who will know

[SAABCOMBI]

You could do the same with a yz 125 a or a Dt 125 made into a 175, who would know, Bore a 125 sherpa S 4 speed or 200 S 4 speed and turn it into a 250 and race it in pre65 who would know. There are members in our club are running big bore kits on 250 and still racing them in the 250 class. How do you control it.

[DR]

How do you control it

with a big stick!

[BAHNZY]

If i was beaten by a 280cc bike in a 250cc class I’d be looking for more than a stick, It's cheating nothing more.
There's plenty of riders that could ride around me an out of sight on a 80cc bike, they are simply better than me but when you come onto a strait 2 bikes ahead and by the end of the strait you are two bikes behind then you take back those positions by being a cleaner/faster more skilled rider only to be relegated backwards each time you hit a strait or an uphill, that's not fair.

[jimg1au]

my bike is a 250 2stroke and i can go past bikes that are in front of me in the streight it is realy fast i cant ride it around corners.just ask matcho mick did it to him in the 250 final at the dirt track nationals 2011.
jim

[Tim754]

Slakers I have oversize rebore kits in .5 ,1, 1.5, 2 ,2.5 and 3mm for my bucket SL125. 3mm is my honesty limit for the 125cc class. Also have various 138cc, 150cc 174cc 190cc and 205cc kits for the early SL/XL 100/125s but they must be used in other larger capacity classes under our governing rules. Tim754

[Nathan S]

There was no capacity allowance for 4-strokes back in the day, so there's little argument for it in VMX now - especially when the 4-strokes get their own class in VMX.

[Ian P]

Don't come to NZ then boys.
Pre75 125 allow up to 249cc four stroke other 125 classes up to 150cc four stroke
250 class all years allows up to 400cc four stroke.

[TM BILL]

Don't come to NZ then boys.
Pre75 125 allow up to 249cc four stroke other 125 classes up to 150cc four stroke
250 class all years allows up to 400cc four stroke.

And its one of the few faults with NZ VMX 

[Ian P]

To be honest it works reasonably well. No one has pushed the 125 limit yet though?

[TM BILL]

To be honest it works reasonably well. No one has pushed the 125 limit yet though?

It would work better if it was a  level playing field , So old mates 250 bsa dont count then Pikey 

[SAABCOMBI]

So can l have my Australia Championship trophy back please in the over 40`s 125 scratch race. that l worked my arse off to beat 125 Elsinores and Zundapp, Suzuki.TM, I want my Trophy Back. That Maico/Honda was inpounded and not one person had the gutts to protest, and l would have been happy for any person to measure the bore. and no one did. I want my Trophy Back. :'(

[Nathan S]

  C'mon Dave. If you knew your bike was right, you'd have stood there and said "Go right ahead - measure it" and then laughed your back-side off when it turned out to be a 125.
But you weren't and you didn't, because it wasn't.

[VMX247]

So can l have my Australia Championship trophy back please in the over 40`s 125 scratch race. that l worked my arse off to beat 125 Elsinores and Zundapp, Suzuki.TM, I want my Trophy Back. That Maico/Honda was inpounded and not one person had the gutts to protest, and l would have been happy for any person to measure the bore. and no one did. I want my Trophy Back. :'(

Dave your a legend ,so it don't matter what you have or haven't got collecting dust on the shelf..
cheers