SLIDERS IN NATS 2011 AND ON MA HAS STUFFED UP BIGTIME

[jimg1au]

reading the new slider rules for nationals i see they have just transposed the old long trak rules over to classic dirt track and cancelled classic long track.
reading into the rules i see you need to have a 2 valve push rod upright motor only.looks like wally and me cant ride our bikes in the slider class at the nationals any more only pre 78 and evo.jap 4 strokes with cam chain driven top ends are out along with the 4 valve head jap stuff ie honda xl350/250
it gets worse 4 valve j.a.p. 4 valve jawa 4 valve weslake 4 valve gm ect ect what happens to them.

dave tanner
who do we need to talk to to get this changed as this year 2010 ther was a full grid of sliders if these rules are in their will never be a australian slider dirt track championship again
2 strokers are ok no problem
jim

[Curly3]

Without reading into it all myself, that sounds like a big step backwards to me.
I wonder what Matt Saggus has to say in regard to the thinking that went into it.
2 Valvers are getting thin on the ground and there aren't enough sliders in total turning up to events to restrict it to one or the other.
Hopefully sanity will step in, as much as I dislike it, Sliders are just a small player in the Vintage scene and restricting things even more is ludicrous.

[jimg1au]

FROM MA

CMX276 CMX265
Slider Class
Comm Commission agrees
Delete all previous rules
18.10 through and including
18.11.1.1 in favour of the
decision.
Current rules read:
18.10 Eligibility-Classic Long
Track
18.11Frames and Parts-
Classic Long Track
18.11.0.1 The frame must:
(a) Have conventional swing
arm rear suspension with twin
shock absorbers.
(b) Have a front wheel
diameter of 23” (594mm)
(c) Have a rear wheel diameter
of 19” (482mm) or 22”
(560mm) as specified in the
SR.
(d) Have rear tyres with a
maximum tread pattern depth
of 8mm.
(e) Not be fitted leading–link
front forks.
18.11.1 Engine specifications-
Solo
18.11.1.1 The engine must:
(a) Be single cylinder
(b) Be 2 valve with push rod
operation.
(c) Have a single spark plug.
(d) Have a maximum capacity
of 500cc +/- 2% tolerance.
(e) Be vertical in the chassis.
(f) Be fitted with a round slide
carburettor of 38mm maximum
bore.
(g) Not be fitted with a centre
port cross flow cylinder head.
Alter 18.10 to read:
Eligibility – Slider Class
Include
18.11 Frames and Parts
18.11.0.1 The frame must;
a)have a conventional swing arm
rear suspension with twin shock
absorbers
b) Have a front wheel diameter of 23”
c)Have a rear wheel diameter of 19”
d) Have rear tyres with a maximum
tread pattern depth of 8mm
e) Not be fitted with leading link front
forks
18.11.1. Engine Specifications-Solo
18.11.1.1 The engine must:
a) Be a single cylinder
b) When four stroke be 2 valve push
rod operation
c) Have a single spark plug
d) Be vertical in the chassis
e) Be fitted with a round slide
carburettor
f) Be a period two stroke compatible
with class entered.
The Commission agrees that there needs to be
more definition of the slider class and makes the
alteration in an unused section of the rule book.
Classic Long Track is not a class and should
have been deleted long ago. The Commission
has tried not to include cut off dates for the slider
class in favour of general rules that are
compatible with the overall class structure.
MA Approved.

[Freakshow]

i think they are trying to open up sliders running with other period bikes, hence the 2 stoke note.

so a later 4 valve can run with a pre 85 which is where it should be, and the ealier 4 valves with the pre 78 period stuff.  makes sence if you look at it like that, coming into line so its era based not, previously just blanket as a slider period all in, just representing a frame style, but not a period era ??

[Curly3]

I'm pretty sure they always could ride in those other classes as well as the Slider only class. It will be interesting to see how this pans out.

[jimg1au]

steve
you are correct
.freaky it has allways  been like that in nationals slider race and period race.
some guys who ride sliders wont ride in the other races with the mx bikes.some do
jim

[Curly3]

Correct me if I'm wrong but wasn't there a push a while ago to keep sliders and mx bikes seperate?

[Freakshow]

YOu would need to ask dave what it means.

[JAP 454]

Hmmmmmmm,
Not a lot of thought has gone into the new Slider rules, it appears that bikes like mine, Wally's and the one Jim is building , ie Japanese 2 valve OHC engined sliders, would be eligible for their age related classes , but illegal in the Slider class !!,
Steve , Matt would have had no say in these rules, the members of the MA Classic MX and DT Commission would have dreamed these beauties up.
Foss

[pancho]

  To eliminate confusion of eligibility and to correctly identify classic sliders as an important part of the history of dirt track racing it is important to adopt a set of rulings in the M.O.M.s specific to Sliders.
  These rulings need to embrace the development of dirt track racing from 'minature TT' through 'short circuit' up to and including the current 'dirt track'.
  Like lots of others I was involved in this history having started racing on a rigid '49 AJS road bike stripped of every thing not necessary for the task at hand.
  The various stages of this 'metamorphosis' right up to the current open class machinery should all receive full recognition of the significance of the part played in this history. To not individually recognize the classic machinery developed by Hagon, Kerr,and others, IMPORTANTLY INCLUDING  those local machines developed with various engines in slider frames such as 305 Honda [twin cyl.O.H. cam], over-bored  KSSVelocette [500cc O.H.cam]  Honda and Yamaha O.H.cam etc. is an important omission for a dirt track classic event.
  To me a specific slider class in classic events holds the same relevance as the period pre '65, pre '70, pre '75, pre' 78 or pre anything.

 

[Curly3]

Okay, how & who do we talk to about this issue.
I can't see this new ruling being of any benefit to the Classic Slider class.
Back in the day it was great to watch sliders & mxers do battle, which is okay when the riders are at the top of their game but given that we're talking classic competition it could get ugly.
As I said before if it it was restricted to just 2 valve engines it'll be even rare to have a full grid.