Maintenance & Technical > KX500 Original

Rad Valve and Moose spacer?

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JRRacing:
Seems everyone suggests the V-force. Any reason not to use a Rad valve and moose spacer?

sandblaster:
The rad will give you better bottom end where the VF2's will give you better mid to top.
So it all depends on the kind of riding you do, your engine's state of tune, and your style.

JRRacing:
90% Vet motocross, 10% woods. I've always considered myself more on the aggressive side of riding style but not so much since I picked this bike up. lol

SB also whats the consensus for Motocross gearing? THANK YOU!

sandblaster:
We are building Sean Collier a new bike.
We are using a Rad and a 10mm spacer.
We are not building a fire breathing dragster... Just the opposite.
We are trying to build more torque... and we will  :-D
His current bike "The Beast" which was built by Frenchy is very mildly ported and it wears Sean out.
So if I was going to MX it I would use the Rad and the 10mm spacer.
Woods Gnarly
Gearing?
It would depend on the track...
Sean use to use a 14/51 but was wearing out the chain guide bad.
Currently Sean is running a 13/45 which is close to 14/48.. stock being 14/47
I know some others that run 14/47 on mx tracks..

JRRacing:
 Great information , thank you. Bike came with a Pro Circuit platinum. Ditch it for the FMF you mentioned?

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