Hi- I'm new to older bikes and working on them. I keep getting different answers on tires for this bike (1978 TT500) locally. Will most new MX and Enduro tires fit the rear and front wheels on this bike? I was looking at Metezeler MC4 tires online but they now use xxx/xxx sizing (example: 110/100) instead of the inches on my current tires. Thanks for the info I can't find an answer online!