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Edited Date/Time
2/22/2019 1:32pm
Talking with a few people last Saturday. Topic of 450's being to much, driving out 250 2t from racing,ECT ECT.
This got me thinking did yamaha have it right when the ycame out with the YZ400F. I know the rule allowed them to go up to 540cc and yamaha did at times go much bigger on their factory bikes. Looking at how they have developed over the last 21 years I would think a 400 would have more hp then the 350 stock, less rotating mass then a 450 and might be a even better all around bike. Not only that i think 250 2t would have held on longer if not still been competitive. I always thought honda picking 450cc was a way for them to get rid of two strokes. They knew with development over time at 450cc 250s wouldn't cut it. thoughts.
This got me thinking did yamaha have it right when the ycame out with the YZ400F. I know the rule allowed them to go up to 540cc and yamaha did at times go much bigger on their factory bikes. Looking at how they have developed over the last 21 years I would think a 400 would have more hp then the 350 stock, less rotating mass then a 450 and might be a even better all around bike. Not only that i think 250 2t would have held on longer if not still been competitive. I always thought honda picking 450cc was a way for them to get rid of two strokes. They knew with development over time at 450cc 250s wouldn't cut it. thoughts.
The Shop
I think the current 250 class has way too much power, as do the 450s. For not only the "average" rider, but also for the Pros when racing indoors. I think less power would equal less severe injuries. I don't care what displacement or stroke an engine may be, I just think the HP numbers need to be around 30, 40, and 60+.... just my -.00002 cents...
Some have said the 250f is enough and I'm on board with that. The yz250f has the power personality that fits many riders just fine. If I had the budget I'd own one.
I remember Jimmy Button telling me about his early works YZF's twisting the dyno to 76 hp. He didn't specify displacement ( ) but he did state that it made most of that power over a very narrow rpm range. Pretty much unridable, he said.
The 350 is much improved from 2011 but again the start. Its much easier to to pass 39 guys at once than to pick off 10 guys over 30min
Pit Row
Guy Cooper rode a KTM520 in the nationals one year, and it may have been overbored beyond that. I remember one of the top riders that that got interviewed after one of the races saying something to the effect of "Yeah, Cooper pulled the holeshot on his 750 or whatever it is...". Yamaha had already bumped up to a 450 when they finally settled on the 450cc mark. But yeah, they should have limited it to 400cc's from the start IMO.
the 450's have too much power at all the wrong times he says
If I couldn't jump something it was because I was holding back, not that the bike couldn't.
On a 250x now for off road simply because of the lower range power and that it runs cooler... And sounds way better.
It's so much better than people realize - but only in the hands of a rider who rides it correctly - aka a 250f type rider.
Web would have been an entirely different rider aboard a 350 rather than that yz450 - I'd venture to say he would have won races
I think we need the ENTIRE sport to go backwards.
Modern 85s in mod form for me - outrun many superminis on the market - and certainly that were common place 20 years ago.
Supermini class has gone from 105cc to 113 this year....why>???? It should go backwards
A good 65 will outrun the stock 85s from 10 years ago...
A stock 125 ktm is like a full blown factory 125 (better actually) back in the 125 days.
The class gaps were based of power at the time - and power has sky rocketed....
We need to step back - sell slower bikes - and make the riders maximize their talents.
Only negative to dropping back to say 400cc or 350cc - is costs for privateers goes up (and teams). Currently a 450 with a pipe, mapping, and fuel is totally sufficient to win sx races.
There was a MXA interview with Decoster right around 98/99 (YZF 400/426 era) where he said he believed the right displacement for 4 strokes in the 250 class should be around 350 or 360.
We can only dream of how interesting the racing would be if the powers that be would have listened and came up with a formula that saw both 2 and 4 strokes competing together.
The 250F and the complete death of a 125 class was the dumbest thing that Motocross ever did.
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