Is there any lenience when it comes to tire sizes? I have a 93 cr250 and the tire sizes I'm supposed to have are:
Front Tire 80/100-21
Rear Tire 110/100-18
When I bought the bike, it came with a paddle tire (I forget the size, I'm at school and will check later), but I'm positive it doesn't match the rear tire size. The owner used to keep a few bikes in his shed, and so I might have gotten a tire for a different bike. I'm pretty sure what the numbers mean, but can I vary any within the sizes? Thanks,
JohnnyB