So I recently bought a liquid cooled ktm50 from alibaba. My intention with this build is to do food delivery for the money is good on a motorized bike. The only issue is that I heard the clutch is not meant to handle riders over 80 pounds. I was wondering if the tomar clutch is worth it economically so I don’t have to have breakdowns or faster wear with the stock engine. Also how many of how big of a radiator should you use for one of these builds? Right now I’m running a 20 inch wheel so what would be a good tooth sprocket to hit 40 or 50 reliably?