Just for reference, this guy put an RD350 motor in an RC390 frame. The whole bike is custom, but you can get an idea of what's possible. The only thing that matters is how much money and time you can throw at it... Good Luck and post pics if you do it...
View attachment 1575
Just for reference, this guy put an RD350 motor in an RC390 frame. The whole bike is custom, but you can get an idea of what's possible. The only thing that matters is how much money and time you can throw at it... Good Luck and post pics if you do it...
View attachment 1575
.Just for reference, this guy put an RD350 motor in an RC390 frame. The whole bike is custom, but you can get an idea of what's possible. The only thing that matters is how much money and time you can throw at it....
A Banshee motor in an RC? Oh yeah, count me in, that would be a hoot. I miss the two strokes.I am a HUGE 2stroke fan and this would be a fun bike! Also, you can get a built banshee motor for a decent amount of coin!
I looked into that 690R supermono by Mototech. I happen to have a 2010 690 Duke sitting next to my 390. When I realized they weigh about the same, have very similar geometry and suspension travel it got me to wondering. Same weight, but with 75 horsepower...Yes please!! Unfortunately, Mototech says they are no longer selling that kit. I know three people that would buy the kit if it were available. I''m wondering how many buyers it would take to get it back into production. Or how about a version that fits the current 690? The Mototech bike would be about the ultimate track bike, in my mind.
I thought the reason the 450 MX bikes converted over to supersport trim were not successful because the rear geometry was all wrong once you lowered the front end 6" with a street front end. The super single 450 class.
Not sure that a 690 would be any different in the geometry department. Still taking a fork with 12" of travel and replacing it with a fork that has 4" of travel and is a lot shorter.
Front Suspension | 48 mm WP-USD |
Front Wheel Travel | 140 mm / 5.5 in |
Rear Suspension | WP-Monoshock with Pro-Lever linkage, |
Rear Wheel Travel | 140 mm / 5.5 in |
Unfortunately, it's not actually that easy. You cant add clipons without replacing the tank. They hit, pretty severely. Replacing the tank on that bike and doing it with something that even remotely fits or has lines that 'flow' is the big challenge. That 690R kit solved the problem by relocating the tank under the seat, and making a narrower 'tank' which is basically just a large air box.