Quote:
Originally Posted by motion
My biggest question is... why a CR500 motor? They have a reputation for not lasting very long at WOT, and also engine vibes are very hard on the chassis. If I had your skills, I would be stuffing in an RG500 motor.
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I would kill to have been able to do an RG500 motor. I heavily thought about doing a big-bore Banshee two cylinder even. Anything but a single.
But it came down to availability and cost. Anything I did on an RG motor would require importing parts and everything is x4...
The CR500 is a trail beast, not a high RPM ripper.... but I don't need it to last long and the entire thing can be rebuilt in an hour essentially. Also, the power-to-weight was important as the goal for the entire bike is to be in the low-200lbs range and the power to weight of the cr500 motor by itself is nearly unmatched. To start the motor is getting the ports raised and the head decked back down to match, shifting the power band up by about 1500-2000 rpm. It will be a handful but that is the idea.. a bike with character, something that is straight up scary to ride. It will not have an onboard kick starter mechanism to save weight. Working with someone on a design for a twin-plug digital ignition, versus the old analog reluctor based ignition.
That exhaust is indeed a two stroke exhaust, it just looks a bit big; the real deal will likely wind up shorter. The pipe I'm having made is a bit of a short fatty to match the high RPM powerband.
The body design is styled like the Britten on purpose. It is my favorite bike, and where the inspiration for the cooling system comes from.
I'll post some 3d views and other drawings in the future.