120 70 17
 

Anyone fitted a 120 70 17 to there sv 650 instead of the correct size 120 60 17?

Re: 120 70 17
 

unless you slide the forks through the yokes then dont bother. you end up only using 2/3 of the width of the tread you also run the risk of noise up which will run you wide on corners.

Re: 120 70 17
 

Master of all sv queries.. i thank you. I just wanted to check as the availability and choice is 10 x better with the common 120 70. Thanks.

Re: 120 70 17
 

The sv handles a lot better on the 60 profile
It also can foul the mudguards

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Re: 120 70 17
 

I have had a 120/70 fitted for a while now, can confirm the handling is fine I actually prefer the 120/70 over 120/60 and it does not hit the standard mudguard.

Re: 120 70 17
 

This is correct and I think I'm right in saying it is why most trackday riders/racers use this size.

Re: 120 70 17
 

I've used the 120 70 front for quite a few years now - without any issues. I've dropped my forks through about 8mm, but some people say you needn't bother. I started using the 120 70 because I was using second hand racing tyres, mainly Supercorsa SC1 & SC2's, and doing the odd track day. I continue to buy mainly second hand tyres even though I haven't done a track day for a couple of years. I am currently running Dunlop Sportsmarts and 120 60's are hard to find - so I've stuck with the 120 70's. They clear the mudguard OK but loose chippings that are dragged through make a lot more noise!

Re: 120 70 17
 

Thoroughly recommend 70's: no fork adjustment needed, prefer handling (quicker turn in), more availability so cheaper and, in theory, more grip at angles. Downside: speedo definitely reads a little slow......

Re: 120 70 17
 

Got a 120/70 , works fine. I dropped forks by 6mm to bring the trail back to standard. Glang is wrong - slower turn in than a 60 unless you drop the forks. No mudguard rub (curvy) and looks better imho.

Re: 120 70 17
 

Why 6mm? looking at the figures, you'd think it'd be 12mm