SV650 Tires - Power RS or Q3+

But only blue double bubbles. Clear or smoked ones are slower.

 

Sorry for the triple post. No idea how that happened.

 

What it really comes down to is the availability of a 120/60R17 front tire in anything but a street product. Street sales wise a 120/60R17 is a VERY slow seller, and nobody is racing this size either so you're right about moving to a 120/70R17 and it makes the most sense.
A 120/60R17 typically has a very triangular profile so I'd start by measuring your current tire diameter (or getting the specs) and comparing them to the 120/70R17 specs of your choice. Then move the forks a bit and go ride the thing. Depending on his pace and feeling for the bike you may want to raise the rear a bit, but at a track day lap time he may be perfectly happy.

 

Ah no see above

 

Really?

 

Q4's aren't available in a 160/60 as of yet, the Q3+ is though. I would imagine its a capable enough tire, it was the spec tire for the Junior Cup series, and those kids are certainly going faster than advanced trackday pace

 

Lawd.