Did you change them?

I've seen people fit 130/70 and 120/90 on the TC Max. I've ordered a 120/80 rear tyre for a little more top speed on my TC max. (I think 120/80 is the maximum size without doing too much to the rear fender)

Dont know what size will fit without the fender but you could calculate that using different online tyre calculators. If you know the difference between the original tyre and the tyre you're looking for you can measure if it'll fit.

Hope this helps 

120/70 or 80 is the max that will fit without extending engine mounting plates or putting extenders on swingarm sadly 110 is the max that will fit on the front without changing shocks or even full triple tree... I put 120 on the front but this is surgical job and with any amount of wobble or slight damage to shocks you will be rubbing on the shocks. Done good looks awesome. But 110 is safe one. So safe one is 110/70 front and 120/70 rear should be ok. Stock tires are really to small for the rims so you need to change them in she shop.