I see Star have been running the Works PSF1 or a hybrid on the 250's lately.
Does this comply with the A rules.
I'll have to check the other manufacturers but these caught my eye.
FORKS AND SHOCKS
a. The manufacturer's original concept of forks and shocks must be maintained.
b. For the 250 class, the replacement and modification of forks and shocks are limited as follows:
1. Forks and shocks may be either stock or aftermarket units listed on the Approved Equipment List. This list
is available from AMA.
2. Homologated inner and outer fork tubes, axle lugs, cartridge, and piston rod must be retained, modifications
are permitted. All other fork parts may be replaced.
3. Homologated shock body, shaft and reservoir must be retained, modifications are permitted. All other shock
parts may be replaced.
4. AMA must receive written notification from the manufacturer of any superseding of controlled parts before
those parts may be used in competition. The manufacturer's parts list reflecting the superseded part must
accompany the notification.
5. Approved forks, shocks, and superseded parts must be available in the U.S. through dealers or distributors
to AMA-Licensed 250 Riders for the entire current season. A dealer or distributor must fill legitimate orders,
accompanied by a 50% deposit, within 15 business days of receipt. Failure to fill a legitimate order may
result in the canceling of the component manufacturer's homologation.
6. Retail prices of approved forks and shocks may not exceed the following cost exclusive of all taxes. (The
forks and shock assemblies must be complete and functioning assemblies, not only the controlled parts.)
i. Both fork legs (less triple clamps): $6,300.
ii. Shock assembly: $2,500.
As much as Star has protested other teams, I would think that they would be on their crap knowing teams will be looking for ways to protest them and not run stuff that’s illegal. Every team could be cheating too, who knows.
Definitely see Triumph running them and I will look to see but likely HRC is running the works stuff on the Honda's
Deegs could run these and still smack the whole class silly.
Prado says “hold my beer” 🤣
The Shop
Luxon 4-Post Bar Mounts
$189.95 - $239.95
Free shipping: VITALMX
Are their forks on the approved aftermarket list?
Prado says "Take my bike cause I suck and give up and quit"
This is interesting. Does SMX follow Pro Motocross or Supercross tech rules? If the former, they can run any suspension they want.
Production suspension rule only applies to east and west 250 sx I believe. There is no regional series with MX and SMX. Could be wrong though 🤷
Yeah, that’s what I’m thinking. Makes this thread a bit of a “nothing burger”.
Approved suspension list applies to both 250 mx and 250 sx
Aren’t those A-Kit PSF-1 forks that are for sale? I think they would be legal.
Those are the production PSF1 forks with a special compression cap (which is outside of the homolgation ruling) and some coatings…they are not running hybrid forks on the 250s.
They have run these forks for over a decade now.
Triumph also uses them now on a few of their riders. Geico ran them with that cap at one point.
MX rulebook doesn't seem to differentiate displacement. Only the SX rulebook has 250 specific language AFAIK.
8. Forks a. Forks must be adequate in strength and size for the motorcycle and its use. b. If the forks are moved up in the triple clamps and protrude more than 1 inch (including air stem if so equipped) above the lowest portion of the handlebars, then a protection device must be fitted over them. c. A steering damper may be used.
Interesting, I thought production rule on forks/shocks extended to MX as well but 250MX is a National Championship class like 450 so it makes sense to have no differentiation in the MX rulebook. Supercross 450 and 250 classes are not the same.
That's from the amateur rulebook.
Here is the pertinent portion from the MX Pro Championship rulebook:
https://www.amaproracing.com/assets/view/28637/2024-AMA-Pro-Motocross-Championship-Rulebook.pdf#page48
Thanks ML. Excited to read all the additional replies where everyone ignores what you said and continues speculating about cheating and the rule book.
The production rule is only for 250 SX correct?
Well I believe ML just mention that the caps are outside of the rule so I guess that is cheating🤷♂️ and this is nothing new KTM used to run the 50 mm that were supposedly for sell to the public not many got out LOL
Huh? Outside the rule, means it’s not a rule.
Pit Row
The rule is that the forks have to be available to the other 250 regional Supercross or 250 Pro Motocross racers (not the general public).
Technically, the 52mm WP forks were available to other racers but it was a complicated process to get through. They didn't carry the spirit of the rule well.
I certainly don't disagree, Deegan will put in the work to be the best that's for sure.
But sometimes work only takes you so far the rest is talent, does he have the talent..... We shall see.
"There's no rule against breaking the rules"! Show me in the rulebook where there is a rule against breaking the rules!
Go ahead and downvote this post, I just couldn't resist
That phrase will be funny to me for the rest of my life.
Is there still such a thing as production PSF forks? I might be looking for a set for my Stark...
So thinking about shocks and KTM (race bike) issues
Do Vialles' rear shock fade issues carry over to Chases? i.e 250 shock versus 450 shock...in the rules?
Chase has commented on having issues with the rear shock fade on and off over the past two seasons.
Hit up Enzo, Ross orders the parts from time to time. He also has a lot of experience with the Starks (he's helping their SX race effort a bit here and there).
If he doesn't have anything or can't get them at the moment, hit up Technical Touch USA.
Does the ama regularly tear down 250 suspension for inspection?
They do, but not sure how often. They also have a copy of the homologated forks and shocks for each set on the semi to compare.
I built those PSF1 forks back in my Enzo days. It would shock people how "not special" they are.
I actually have a set
Pull your tongue out of his asshole daddy!
Thanks ML, are the rules around shocks the same for 250 and 450 or can 450 run more exotic shocks?
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