Guys. I have a Yamaha LC135 5Speed Manual Clutch, with a modified rear wheel. The rear wheel and rear sprocket is that of a Exciter 150. Current sprocket combination is 42/15. I’m looking to change the sprocket set and I want to know what’s the biggest front sprocket I can fit. I heard that a 16T front sprocket is compatible. Is is possible to fit a 17T or 18T. Also, are there any Exciter 150 rear sprockets smaller than 42T?