Maintenance & Technical > KX500 Original

Quick help with V-Force 3

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meangreen500:
I got the rad valve on my kx and 2 cr500's. is the v force better or just what you have installed? just asking

BDI:
rad valves suck. v-force is a major improvement in technoligy.

kaw rider:
Brian
Your right the rad valve for the kx 500 is a great midrange cage with a 38mm carb. Back in the mid 90's when v-force was making there cages out of billet aluminum and good carbon base stock reeds, they were king. Know there plastic cages with poor carbon base stock.

The rad valve is a 250 design

BDI:
Because the v-force has twice the reed peddal tip area it only has to move half as far as any other reed to flow the same amount. It has a super high Frequency response. I would say it has twice the frequency response of any other reed. that is what they were trying to accomplish with the dual stage reeds like the rad valve but what you get is a reed that is a compromise.

meangreen500:
you have any comparison to each other some numbers maybe. I dont know my kx revs fast and has serious low grunt and has great responce overall, The cr is a little different it lost some bottom end but sure picked it up in the mid and top. also my kx has good over rev.   The rad valve is made of billet and the vforce is plastic. give some reasons that it is so much better you guys arent giving very much. Ive had it on for over 5 years now with no problems.

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