KZ750 Tire sizes

DivideOverflow wrote:

bountyhunter wrote:

DivideOverflow wrote:

650ed wrote: I'd put a 100/90 19 on the front. 120/90 18 on the rear is fine. 110 is too narrow and 130 does not give any advantage because the narrow rim deforms the tire's cross section so there's no more contact patch than with the 120 (I used 130s for years on my KZ650 and switched to 120). I used Michelins and Dunlops before but now run V-rated Pirelli Sport Demons on mine and I like them a bunch! Ed

On the front, is there a particular handling issue you think a 110/90 would cause?

Yeah, on mine the thing dragged the front fender when I got up to 50 mph.

I run 110-90-18 on the back, 100-90-19 on the front. The rear looks a shade small so you can go up to 120-90-18.

Did you drag the front fender trying a 110/90? Or a 100/90?

Only the 110 dragged and only at speed when the tire expanded a bit. 100-90-19 is the correct size.

650ed wrote: The 100/90 19 does not interfere with the fender at any speed. Ed

Here's how lazy I am: I bought the 110-90 because it was the closest they had to what I needed. When I realized it dragged the fender in the front, I took the fender off and used a file to "slot" the mounting holes enough to raise the front of the fender about 1/4". I wasn't going through all the hassle of taking the wheel off and getting a new tire again. I went ahead and ran it. Didn't affect handling, did make the speedometer read a bit higher.