tires and sprockets

[juanki]

so i was checking in my old dw mags and came up to this article and found it interesting.. is about finding top speed on a trx450 and a yfz 450 sing diferent tires and sprockets.

this test was done by avina prep desert team..both machines had minor engine work and hmf exhaust.

top speed where mesured by a gps..

here are the results

first the trx

with 20" tires

14/36 84.5 mph
14/38 79.8 mph hit rev limiter
15/34 87.4
15/36 88.3
15/38 86.1

with 22" tires

14/36 85.2 mph
14/38 85.4
15/34 82.8 didnt pull 5th
15/36 88.8 fastest
15/38 85.7


yfz

with 20"

14/36 82.6 mph
14/38 78.1 hit rev limiter
15/38 83.6
16/36 87.3 fastest
16/38 84.6

with 22"

14/36 87. 3 fastest
14/38 84.9
15/38 86.7
16/36 86.0
16/38 85.6

hope this info is usefull... :)