Tourances.....Please explain

[Garryc]

Tourances....I've heard comments regarding tourances cupping???

and as my tyres are reaching the end of there massive life, as I was wondering if this so called cupping, explains some the eractic handling, or is this just my ham fist driving....

Can some please explain - no techno garble, please ???

 

[gazza]

Had half a dozen sets and never noticed any problems even when down to the wear bars. Did get this cupping on a set of T66's but still never really caused a problem. Got around 10K out of every set and no problems with grip just my nerve and find Tourances fine.

 

[NeilF]

Did get this cupping on a set of T66's but still never really caused a problem. Got around 10K out of every set and no problems with grip just my nerve and find Tourances fine.

Ditto for me - the T66's do "cup" but you have to really look for it. Tourances are better than my ability to corner!

Stickier than T66s, and much better in the wet!

Cheers,

Neil.

 

[cookie]

but what is "cupping"?

 

[judge]

Is it the same as squared-off? If so T66 are appalling for it and yes Tourances do go that way if you ride too many of the wrong roads

 

[Spanish Bob]

if its squaring off then they are the best tyres Ive ever had for it - they dont seem to do it. Mine have got a bit erratic near the end of their lives, but that was in one case due to uneven wear provoked by a permanent v. slow air loss, that I couldn´t ever get to the bottom off.

bob

 

[NeilF]

but what is "cupping"?

It's uneven wear of the tread blocks - "cupping" is a concave appearance of each block when looked at from the side.

Kinda like car tyres when they are run at the incorrect pressures - they show ragged profiles, maybe lower at the front than the rear of the tread 'block'.

 

[cookie]

ta.

 

[Panzer Patrol]

In my experience, you can get cupping occuring on the front tyre if you indulge in some continuous, serious braking, especially on a hot day. I found the Pirelli Scorpions were prone to this, but the Tourances tend to only do this when they are starting to wear out. The only effect was the front end felt a little uncertain when the bike was heeled well over, otherwise never found it a problem.

My 2p worth

 

[Invicta Moto]

It's uneven wear of the tread blocks - "cupping" is a concave appearance of each block when looked at from the side.

Kinda like car tyres when they are run at the incorrect pressures - they show ragged profiles, maybe lower at the front than the rear of the tread 'block'.

My OEM T66 front did something almost like that, but it was only noticable on the leading edge of the central blocks - slightly chamffered, not a concave across the length of the entire block.

I put this down to incorrect tyre pressures and so did Watling Tyres when they fitted the Tourances.... maybe cupping is different....?

 

[martin davy]

I'm no tyre expert but I've had 3 sets of Tourance tyres and all 3 front tyres 'cupped'. This must be as a result of the extreme forces involved in braking. It only became apparent at the end of their life.

As for your 'erratic handling' this is either tyre pressures or (more likely!) - you

 

[Madmountainman]

I've tried a few makes and personally have found the Anakees best at resisting the cupping problem.

 

[roadrider]

It's uneven wear of the tread blocks - "cupping" is a concave appearance of each block when looked at from the side.

Kinda like car tyres when they are run at the incorrect pressures - they show ragged profiles, maybe lower at the front than the rear of the tread 'block'.

Well described Neilf, The tyre manufacturers will always tell you that cupping is caused by under inflation, causing excessive heat.
John

 

[Spanish Bob]

I'm no tyre expert but I've had 3 sets of Tourance tyres and all 3 front tyres 'cupped'. This must be as a result of the extreme forces involved in braking. It only became apparent at the end of their life.

As for your 'erratic handling' this is either tyre pressures or (more likely!) - you

mmh sounds like my tyre and me

 

[(RIP) Kaister]

FROM http://www.goodyear.com.my/tyre_school/tyre_problems.html

REFERS TO CAR TYRES - BUT SAME REASONS

Cups or Dips in the tread: WORN PARTS
Cupping (also called dipping or scalloping) is most common on front tyres, though rear tyres can cup as well. It may be a sign that wheels are out of balance or that suspension or steering system parts are worn out. Many Goodyear retailers can provide expert diagnosis and repair.

Phil

 

[bmwrich58]

or Dips in the tread: WORN PARTS
Cupping (also called dipping or scalloping) is most common on front tyres, though rear tyres can cup as well. It may be a sign that wheels are out of balance or that suspension or steering system parts are worn out. Many Goodyear retailers can provide expert diagnosis and repair.


This trait seems to be all so common with BMW's especially the new telever suspensions. Many people report that several different brands of tires cup more or less than others. Some even report that increased air pressures have help slow this cupping effect or eliminate it all together. Just about on any BMW web site, a search will reveal what other's have done or do when exposed to this "tire wear". Personally, I just monitor inflation pressures on the bike more than on the car.

 

[Frank Warner]

This trait seems to be all so common with BMW's especially the new telever suspensions. Many people report that several different brands of tires cup more or less than others. (

It don't just happen on bmws! I've had it happen on many different makes of bikes .. and they all had normal telloscopic forks.

I do agree that hard braking does tend to cup front tyres. And possible telever fronts may tend to encorage riders to hard braking. But that is as far as I'd go in blamin televers for cuped tyres.

I'd also agree that tyre tread pattern and compound play a part.