Issue I've had with wider-than-stock tyres on pre-gen is it slows down handling. Wider flatter profile makes bike lazier to respond and takes some fun out of riding.
Earlier his year, I bought front ContiScoot tyre in stock 100/80-16 size. Put on about 4K-miles and it'll look like I'll get at least 15K-miles out of this tyre. It also works really well in rain!