Maintenance & Technical > KX500 Original
Question about Jeff Ward's 91-92 500s
Polar-Bus:
--- Quote from: SteelHorse751 on July 22, 2011, 02:26:48 AM --- So I am curious if anyone knows if the frame geometry on his 91-92 500s are different than the Production KX500s.
--- End quote ---
Per strict AMA rules the factories cannot modify the frames geometry different from the production bikes. However, beyond frame geometry and a fuel rule, the sky is the limit as far as mods. I have an old book deeply describing the factory works bikes of the 70's and early 80's and let me tell you the trickery and attention to TINY details is amazing !
SteelHorse751:
--- Quote from: Polar-Bus on July 22, 2011, 10:00:02 PM ---
--- Quote from: SteelHorse751 on July 22, 2011, 02:26:48 AM --- So I am curious if anyone knows if the frame geometry on his 91-92 500s are different than the Production KX500s.
--- End quote ---
Per strict AMA rules the factories cannot modify the frames geometry different from the production bikes. However, beyond frame geometry and a fuel rule, the sky is the limit as far as mods. I have an old book deeply describing the factory works bikes of the 70's and early 80's and let me tell you the trickery and attention to TINY details is amazing !
--- End quote ---
Thanks Polar-Bus for the info.
I didn't realize that about the AMA rule. The last time I was "really" into Motocross was at that same time frame you were talking about (late 70s-early 80s) and I remember drooling all over the pictures of the works bikes.
I was just watching that video again of the 91 USGP and for production Geometry, Jeff could make that 500 turn on a dime. Of course that was Jeff Ward!
Still good to know that a KX500 will turn and work well on a motocross track given the proper attention.
crazyolbastard:
last time I threw a leg over a bike at a race track was in 82,
guess we`re showing our age, ain`t we steel horse
:wink:
SteelHorse751:
--- Quote from: crazyolbastard on July 23, 2011, 04:31:50 AM ---last time I threw a leg over a bike at a race track was in 82,
guess we`re showing our age, ain`t we steel horse
:wink:
--- End quote ---
You got that right!
82 was the last time I raced as well. Had an 81 490 Maico.
That was a nice bike.
This K5 I am going to be picking up next month, with some work should do me fine too.
Polar-Bus:
--- Quote from: SteelHorse751 on July 23, 2011, 05:48:41 AM ---
--- Quote from: crazyolbastard on July 23, 2011, 04:31:50 AM ---last time I threw a leg over a bike at a race track was in 82,
guess we`re showing our age, ain`t we steel horse
:wink:
--- End quote ---
You got that right!
82 was the last time I raced as well. Had an 81 490 Maico.
That was a nice bike.
This K5 I am going to be picking up next month, with some work should do me fine too.
--- End quote ---
As many of us old guys my MX race track days are behind me, I just don't have the strength and stamina anymore and I have a life's agreement to not ride agressively tired anymore especially in race mode on the track. I worked for a Kawi dealer for about 10 years and I was fortunate to attend a Parts Unlimited dealer appreciation event at Southwick. We were able to "try" and ride Travis Pastranas practice RM125 factory bike , and I said what the hell, I had plenty of "wick experience. Let me tell you those factory bikes are so hard to ride (I am just a B vet rider) . Travis RM125 has so much midrange and insane peak hp that it was like hitting the nitrous . The suspension was like riding a cement slab, yet was very controlled. The brakes were equally amazing. The bike also felt like it weighed like 170 lbs....
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