HELL YEA! I saw one of those at our last track day that some CMRA guy was running on the track. I had to change my shorts everytime he rode it by. I don't think his was a 550 though...most likely a 250, but either way...HELL YEA!
I guess peak power output should be about what a really good running 250cc two stroke twin would be, but the power curve would be flatter and it would peak at a much lower rpm. I guess it would hook up better too from big bang effect (and I can verify that a 500+ cc two stroke single has some very big bangs!).
i had a buddy that was stationed in japan who had an NSR and imported it here it was all street legal, he asked me if i wanted to trade my TL for it back when i first bought it and i passed him up cuz i didnt wanna drive to cali and get it...............but i would love a 500 2 stroke some day!!!!!!!
In Holland someone built a RGV250 with an 800cc suzuki DR engine..:devious And some people mod their 125cc mito into a 350cc twin cilinder (rd) bike. There even was a guy in the UK which put a cr500 engine in a moped.. but he got killed by it..:confused
If you really want to make something cool you have to built an rd500 (4 cil 2 stroke) with new type cilinders. That would should make 140bhp easy!:devious
The only downside I can think of is the paint shaker vibration.
I saw a similar project awhile ago, the guy took a YZ450 engine and put it in a TZ 250 chassis. If you go nuts modifying it, you wind up with mid 60's hp and of course the awesome traction of a thumper. That would be my dream track day bike :hail
I remember those KTM 550 smokers. They were real popular with the SoCal hillclimb crowd for obvious reasons. They would line up on the big hills at Jawbone with their extended swingarms and let 'em eat, right up the side of a freakin' huge mountain. This is nothing like the Widowmaker or other competetive hillclimbs. Not as steep perhaps, but it goes forever, with something like a 2,000 foot elevation change. The temperature at the top is noticibly cooler than the desert floor below :coocoo
Yeah it would shake a tad, I know my CR500's weren't the smoothest running things around, but at least the vibs are pretty low frequency with only one piston and it bobing up and down pretty slowly (I don't think a 500 spins much over 7k rpm)
Yeah, I had fun on a CR500 in west texas - actually blew up a piston (like exploded into a zillion little parts) there. Only bike I've ever really broke a so called bullet proof, low hours CR500 so it was back to the YZ80 for the rest of the trip:banghead
I also played around on my Dad's CR500 in the dunes in UT but perfered my KX250 as the suspension was much better and it had a paddle tire on the back that almost made up for the power diff - my dad could take me on a really long steep climb, but I flew by on the way back down:lol
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