US Spec RC390 Top Speed Run

s30series

Member
I picked up my RC390 the other day near Atlanta, GA (see other thread) and since then I've put about 300 miles on her. Yesterday I decided to take it on the interstate for the first time.

I'm happy to say that the US spec model has a higher top speed than all the other countries versions. I'm 210lbs, and I hit 111mph on a flat/slight uphill section of GA400 up north.

The bike still had more to give, but it was in deer country and I didn't feel like going faster that late at night. It didn't take that long to get up there...once it hit 105 it took maybe 5-8 seconds to see 111...not sure of the RPM but my shift light (haven't changed settings) started blinking at 110. After a few hundred RPM of blinking it switches to solid, then you've got about 3-400 RPM until ignition cut.


I think with exhaust/intake/tune this bike should easily see 120mph+ for the US
 

s30series

Member
Nevermind, I'm retarded. For some reason, I thought the top speed of this bike was 103 mph in other countries. Apparently my kph/mph conversion math is a little rusty!
 

mr-fabricator

New Member
Ive seen 113mph ( 183kph) 0n the flat ..

I see 176-178 before i brake for turn 1 at local track .

This is an oz spec bike if that matters ?

Regards lee
 
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