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redexrider4290
04-29-2005, 06:39 PM
this guy i ride with has a yfz with Maier plastics, K&k graphics and seat cover, tag handlebars, + front a-arms, tc shory supertrapp exhaust, k&n air filter w/ outwears and no air box at all im sure a jet kit i think he runs stock gearing

well i was wandering how fast it would probobly go

ketchup
04-29-2005, 06:49 PM
Probably faster than your EX.

redexrider4290
04-29-2005, 07:22 PM
i was looking for more of a mph answer i was thinkin 80-85 would that be around right

ketchup
04-29-2005, 09:50 PM
With stock gearing and tires it'll most likely hit the rev. limiter before 80mph.

future 450?
04-30-2005, 03:53 PM
Originally posted by redexrider4290
i was looking for more of a mph answer i was thinkin 80-85 would that be around right


u kno a stock yfz tops at like 63 rite its impossible for him 2 get above 75

ketchup
04-30-2005, 05:16 PM
Nevermind...forget it.

04-30-2005, 07:51 PM
Originally posted by future 450?
u kno a stock yfz tops at like 63 rite its impossible for him 2 get above 75

63 my *** more like 73 id say:huh

wvgnccracer
05-01-2005, 09:32 PM
Dude My Stock yfz with air box lid off did like 70Mph IN 4th gear on the dyno at the Gncc race

05-02-2005, 03:52 PM
Originally posted by ketchup
No, a stock YFZ tops out at 75 + or - depending on rider weight, etc... with stock gearing and tires, where the f do you get your info.? And as far as it being "impossible" for a yfz to reach above 75...mine does upper 90's with 22in. tires and 15t front sprocket and I know of bikes doing 100+. Dumb ***.

what better does the 15t do to your quad

gasboot
05-02-2005, 05:48 PM
Originally posted by future 450?
u kno a stock yfz tops at like 63 rite its impossible for him 2 get above 75
check your faqs feb 2005 dirt wheels page 108- stock motor hmf exhaust 22" rear tires 84.9 ~~~ 20" rears 78.1 what does your 400 do
15t 20" 83.6

05-16-2005, 04:53 PM
i heard with the highest gearing, you can get up to 77.5 mph with a stock yfz450.