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TRXRIDER4567
06-20-2007, 12:01 PM
i have a trx 250 ex and i was wondering what would happen if i put a 20 inch razr on it instead of the stock 22 inch tire.

TRXRIDER4567
06-20-2007, 12:39 PM
somebody please help

400exrider707
06-20-2007, 01:06 PM
More acceleration, less unsprun weight, better handling and a lower top speed.

TRXRIDER4567
06-20-2007, 01:09 PM
will i lose alot of top speed.

400exrider707
06-20-2007, 01:16 PM
Originally posted by TRXRIDER4567
will i lose alot of top speed.

I'd say between 3-5mph but Im just guessing. There are gearing calculators floating around that will tell you exactly. However they use exact measurements and a lot of atv tires are not exactly what the side of the tires says. My 18" klaws were the exact same size as stock 20" Dunlops, and my 18" rear turf tamers measured 16.75" just for reference.

TRXRIDER4567
06-20-2007, 01:22 PM
would you suggest going with the stock size

do the 20's slide better than the 22's

#22blaster240
06-20-2007, 03:43 PM
I have 20-10-9 on my 250ex and it is so much better. I clocked it out and I only lost 3mph.

REDRIDDER
06-22-2007, 08:29 AM
here you go you can figure it out http://home.earthlink.net/~gellett/400ex.htm remember to add rpms for rev boxes and also the 400ex rev limiter is 9100rpms

rooster300ex
06-22-2007, 08:33 AM
Originally posted by REDRIDDER
here you go you can figure it out http://home.earthlink.net/~gellett/400ex.htm remember to add rpms for rev boxes and also the 400ex rev limiter is 9100rpms

He is talking about a 250ex.