Tyre wear problem

[Robert Taylor]

I haven't found a tyre thats bad on an SV just different handling characteristics, wear, and performance.

The SV being a very low powered commuter doesn't eat tyres. Just get the right tyre for the track conditions ie temp etc, how long you want them to last, and weather conditions.

SV you can use very soft fronts and they wear well but be careful putting soft stuff on the back in cold winter conditions when the tracks suface is cold or you will get wear like pictured in the first post (Cold shearing)

Approriate this thread has been dredged (its a year old) as its getting near the Vic Clubs winter series. If I was running Pirrelli slicks on my SV I'd be useing an SC0 or SC1 front and an SC2 rear on any cold day. And tyrewarmers of course.

I run these at trackdays and they last for ages and my bikes got a standard rear shock in it.

Try opening the throttle earlier and holding it on longer like the fast guys in front of you, read the tyres again.

[GSVR]

Try opening the throttle earlier and holding it on longer like the fast guys in front of you, read the tyres again.

Yeah like thats ever going to happen. What about putting Terry or Glen on my bike and see how long it takes them to ruin a tyre. Now that would be a comprehensive test.

Sort of like getting Gixxeracer to do a tyre test on a Streetstock bike right?

[Robert Taylor]

Yeah like thats ever going to happen. What about putting Terry or Glen on my bike and see how long it takes them to ruin a tyre. Now that would be a comprehensive test.

Sort of like getting Gixxeracer to do a tyre test on a Streetstock bike right?

Suffice to say the three riders you mention are more motivated than you about going fast and will have the right equipment to do so.

[GSVR]

Suffice to say the three riders you mention are more motivated than you about going fast and will have the right equipment to do so.

I don't think so. If two or them were really motivated they wouldn't be riding commuter bikes right? PT

[Robert Taylor]

i don't think so. If two or them were really motivated they wouldn't be riding commuter bikes right? Pt

twist twist twist ad infinitum

[Mishy]

You could actually get an SC1 to work but the shock and its spec has to be right on the money. Many tyre wear problems are blamed on the tyres when very often its a suspension and set up problem. But generally yes the SC2s are more forgiving re set up.

Its quite a good system really...we blame the tyre guys and the tyre guys blame us!

Bingo, I do it all the time .. . . . . . . . .

Soft tyres are far more prone to the type of tearing we are lookig at here. There are many many possible causes/cures for this, but often the underlying problem is the same - too little temperature in the tyre, which leads to a lack of compound flexibility (tyre is below it's temperature corridor, and the polymers have not attained glass transition temperature) In a very soft tyre which has a high volume of stiffener in the compound, this mostly rules them out in cool conditions
Another (common) underlying problem is an imbalance between the load applied and the wheel force at that end of the bike. Suspension and geometry matter a WHOLE heap here, but poor tyre choice can also be the culprit.
All the Conti running SV650 riders at Nationals this year (Conti ran 2 and 3) ran Medium rear tyres. We only had one meeting where i think a soft would have been a genuinely better choice for any of them
It seems simplistic, but a well performing strong compound tyre will provide better grip than a torn soft one.

[Shaun P]

What are conti's like compared to say pirellis?

[CHOPPA]

Ive found 2 solutions for this problem! The first solution is to turn the tyre around and the other solution was to change to DUNLOP

RT would be good to talk to but we could never sort the problem out on cold Taupo on pirellis but it doesnt seem to be a problem on Dunlops

[Mishy]

What are conti's like compared to say pirellis?

Not that much in it, the Conti front tyre carcase is a bit stronger though, and the rear seems better dampened.

[GSVR]

Don't want to make any assumptions or presumptions here....

Do you think Contis race tyres are more like Dunlop race tyres in their construction and charactistics than Pirellis?

[Robert Taylor]

Don't want to make any assumptions or presumptions here....

Do you think Contis race tyres are more like Dunlop race tyres in their construction and charactistics than Pirellis?

They are actually somewhere inbetween the two, Hamish will be able to elaborate further.

[Mishy]

They are actually somewhere inbetween the two, Hamish will be able to elaborate further.

Quite right mate The carcase of the front Conti in particular is more rigid and stable than the Pirelli, but more supple than the Dunny. It's kind of the same for the rear, but the Conti and P model are a bit closer. There are still significant differences though, and the Conti seems to have a bit more control in that area. In general the Dunny's are pretty rigid, and transfer force, and dampen quite differently to all the others. Robert would testify to how much that affects suspension damping and spring solutions - it's quite a big deal, and really needs someone other than me to cover it properly.
You could write pages on that stuff though . . . . . . . . .