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I still don’t understand why we had 85 foot quads 125’s were jumping in the two stroke error but now we have the same 65 foot triple that a 450 can jump in 1st gear.
The Shop
In the UK there's been a huge resurgence of 2 strokes hitting the tracks in the younger age ranges (on adult sized bikes) i'd say at least a third, if not more, are 2 strokes. Not to mention the gain in popularity EVO racing has got. It's a positive thing to see
Big class- 40 hp
/endthread
Code to unlock the 55hp map: green-blue-blue-green. One more blue returns it to 30 hp.
And the clueless AMA is going to somehow dyno and tune every single bike? And privateers and factory alike are going to dyno and limit their bike for the exact conditions at every race?
Although I'm not sure how pumped up the 450's are, and how much this would help the 'problem' in that class.
Just like Nascar and F1 do, every few years we need to control the speed. When the cars get too fast, they change the max displacement.
Changing max displacement allows EVERYONE to innovate, and make money.
If we went with stock engines, ProCircuit, FMF, etc... wouldn't have products or services to sell.
Just set displacement, then allow all players to innovate and find the extra performance.
When the speeds become too great again, lower the displacement again, just like F1 and Nascar.
In MX, SX, we've done the opposite. As the 125 and 250's got faster and faster, we up'd the engine size. WTH?
Changing the rules at the pro level should precede amateur races by 3-5 years.
We can't all buy new bikes in the same year. Give the amateur riders time to make the change.
The 125 and 250 2 stroke classes were the right amount of power. Why would we want to create a 150 class?
Since the 2 strokes at this point in time are still faster than their 4 stroke counterparts, I say the classes should be:
If they're not, then set the classes as 125 and 250 2T and 4T.
I propose:
125 2-stroke/175 4-stroke
250 2-stroke/300 4-stroke.
Innovate as much as you'd like. Port it, pipe it, create bad ass suspension.
The racing would be better, and injuries less severe.
Let's face it, crashing at 50MPH is going to do more damage than crashing at 45MPH.
There will also be fewer crashes with the lower displacement because higher speed requires faster reactions.
The upside for the manufacturers is that everyone will need new bikes over the coming few years.
$$ BIKE SALES $$
I'm leaving out details on keeping things fair and allowing a transition time in the amateur ranks.
It can be done. I've published how to transition in Vital in the past.
As for the 125 class I wouldn't mind if it was two stroke only class but I'm sure that with current four stroke technology advancements it wouldn't be possible to create competitive four stroke 125
In terms of power the modern PUs are near 1000hp. That's an increase over the previous V8 motors that were used pre-2014. The V10s hovered around the 1000hp mark though at the end of their period in F1. The capacity is not an absolute measurement because we have to factor in turbo charging, hybrid systems etc....In 1987 BMW M12 was a 1500cc turbo charged monster. The naturally aspirated engines that came in from 89 were less powerful but were 3.5lt. iirc
Sometimes power is limited via regulation. In the 80s they were 1400hp in quali form and I think boost ended up being limited for the 88 season iirc. not sure if this was a cost or safety thing. I
It's true essence the rules dramatically limit the possibility of the cars being 'too fast' because we could have cars that are massively faster in theory. But it's a complicated picture. That's a long way to say F1 isn't the best example. The regulations are changed and manipulated so much its not a good thing to reference whereas MX is vastly more stable as a racing format. Short answer is easy - go back to 2-stroke.
Everytime I ride my 1986 CR 125 it strikes to me how much heavier current bike's are compared to that. It's so much easier to get out of trouble with that bike when things go south
Look above in this thread at all the dudes saying "leave open bikes for men" and shit like that. You think that MX dudes are gonna take the AMA/manufacturers going "you can't handle a 450, all 350s now?"
Yeah fucking right.
Pit Row
Track maintenance?
Safety?
Close competition?
Developing riders?
Lower racing costs?
Involve more manufacturer's?
Develop better bikes?
Save the planet?
Much of what the industry "assumes" to be common knowledge has no basis in facts or research.
Off road is booming, and classes are not based on bike size.
But hey! Great and fun opinions and thoughts so far, eh?
I ask this because possibly the folks who have not owned or ridden one lately may be missing out on how awesome and easy to ride these bikes are.
EFI, an endless selection of mapping, superior suspension and lighter weight down lower has really changed these motorcycles from when they first came out as carbureted ,heavy, poor handling kick start beasts 18 or so years ago.
Personally, I think a smaller bike displacement is actually harder to ride fast than a 450. I also own a 350 and a 125, and I always get better lap times on most tracks on the 450 with less effort, so I can ride harder for longer.
Seat bouncing long jumps right out of tight corners is so much easier with more torque.
so go on and downvote me, but IMO anyone who says that 450's are ill suited for supercross may want to swing a leg over a new model....
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