Top Speed

[GSX]

What are the 04 & 05 TRX 450r's geared for MPH in top gear?

[JRP]

i think 78mph

[MR.BIG]

73mph all stock!

[GSX]

The reason I was asking is because my friend had some work done to his 450. Cam, aftermarket piston & valve job/ porting, yosh exhaust. He now hits the limiter pretty easy. I told him to drop a tooth in the rear sprocket if he wants more mph.

[MR.BIG]

You can do that or get an aftermarket ignition so it will rev higher.
one tooth on the countershaft sprocket is equivalent to 3 on the rear sprocket if that helps.

[GSX]

Who offers an aftermarket ignition?

[MR.BIG]

dyna-tech is suppose to be good there is others. Do a search on here there was a thread on here about ignitions a while back.

[GSX]

Thanks for the help.

[Ridin' Jesse]

Mid 70's im thinking.

[450Redrider5]

I read in a dirtwheels that it goes about 78 all stock