quick question about tire sizes and aspect ratio

[bushido8420]

I have a 92 Kat 600 stock tire sizes on it now 1108017 front and 1408017 rear. my question is if the aspect ratio is different ie 1207017 front and and a 1506017 rear is that going to affect handling or be bad in any way and the next question is will my tires affect my Speedo

[92xjunker]

Common stock replacement 120/70/17 & 150/60/70 the circumference is slightly smaller than the OEM size so, yes it will effect the speedo. The circumference difference is minimal.

[bushido8420]

What about 120 60 I've read that it will be kind of a harsh ride but great road feel

[92xjunker]

Won't fit the rim

[bushido8420]

Ok but the 70 will with no problem or should I just get the stock replacement I found

[92xjunker]

120/70/17 will fit

[bushido8420]

Thank you for the input just got it out the other day and will for sure need a front and rear this season lol will the different aspect ratio on the rear play with the handling at all or no I'm sure anything will be better as the rear is kinda squared off

[92xjunker]

Nope, if anything it will improve a little.

[bushido8420]

Alright well since you are answering right away haha can I ask you about a flat spot between 6k - 8k rpm I'm thinking it needs to be synchronized because the kid that had it before me had them apart but didn't do it

[92xjunker]

Good place to start