I'm with Apholla - I would check that tire for any extra wear and also have a good look at the swingarm for any contact marks.
Hi all. I think you may have a problem with the retainer washer on the small sprocket that sits on the gearbox output shaft, this has the function of positioning the front sprocket in the correct position on the shaft. This washer actually bolts onto the front sprocket in an offset position to keep the sprocket properly on its splines. To check it you have to remove the side cover. It may also be that the splines on the output shaft or sprocket are damaged. I really dont think a chain can "jump teeth" on a reasonable good sprocket.Hi all, i went on my first ride on the TW after the rebuild. I had some teething troubles, but one item I cant understand I thought might be experienced before. Under load (going up steep hills on dirt) the chain will slip on the rear sprocket. Now this happened when i first tested the bike with a cheap chain, so I changed it for a higher qual chain, and i changed the sprockets at the same time. I can tighten the chain, really tight, helps, but not supposed to have a chain adjusted in that way.
The tw only seems to have a chain slider, no tensioner or guide? I have fitted a duro on the rear and perhaps the significant traction is meaning more pressure is on the chain/ sprockets?