I picked up a classic Kawasaki KM100 and the tire size is 300-14 (as listed in the manual and on the current 36 year old tire). My question is would I be able to fit a 300-16 tire? Whats the difference anyway? I found a nice bridgestone 300-16 tire at Cycle Gear locally but they don't have it in size 300-14. Thanks guys!