Storm 250 (DB-08-250)

[dossbag]

oops, not logged in for a while. Yes Bashan makes this bike

[culcune]

Originally Posted by dossbag

oops, not logged in for a while. Yes Bashan makes this bike

Long time no see! How is everything?

[dossbag]

No complaints well, lots but it's Michigan and no riding here for the winter. Bike still running like a Champ so not felt the urge to bug anyone for a while. Still having issues with leaky gas cap, it stripped the paint on a 2nd tank fairing Actually sunny today, it doesn't like the cold though, I might swap out the carb and put something better on. The stock one is pretty crap.
Hope everyone's doing OK

[Ariel Red Hunter]

Originally Posted by Weldangrind

I agree. With increased compression comes increased horsepower, and the by-product is increased heat. A radiator is needed to control that heat, once you've gone beyond the tipping point of what an air cooled motor can tolerate.


A CG engine isn't necessarily built to looser tolerances, but it has a relatively low compression piston.


A six speed may or may not allow freeway travel. The rest of the story is that rev potential depends on the ratio of rod length and stroke, and gearing depends on the primary reduction ratio. All of that depends on the frame of architecture, which dictates the available space.


I think I can drop a six speed out of an XR200 into a CG engine, but that won't necessarily allow for freeway travel. While you would think that it would provide another gear on the top end, it doesn't. It actually inserts another gear between two existing gears, to limit RPM drop during acceleration. Off the top of my head, I can't remember if it's between 2-3 or 3-4.

I have to disagree with one line of this response. There have been many aircooled 250's that will run in excess of 75 mph. I've had two myself. An AJS 250CSR and a very hot H-D Sprint 250 CSX. The Ajay topped out at about 82, and the little Harley even more. But both of these engines were designed to do this from the ground up. The 229 cc engine in the China Bike was designed to just get people from here to there. Like a BSA 250 cc C-15. A carry the rider to work and back home type motorcycle. But the engine in the Hawks and others luckily turned out to be a much better design than other "ride to work" bikes. It was designed 20 years later is probably the main reason.