It definitely looks defect related to the compound on the front. Both front and rear have squared off and the mileage isn’t that excessive. My S20 rear did 2k and was proper square and we have no motorways or straight roads, in fact the nearest dual carriageway is 25 miles away. Hence why I moved away from Bridgestone and have went to Metzeler. I think you will have a battle on your hands trying to get anything out of the the fitters or even Bridgestone... good luck
If the brakes were binding to the degree it damaged the tyre .. the bike would barely move. And the brakes would over heat long before it damaged the tyre. The first time I saw the pic I thought it was a tear tyre. That's some pretty bad wear. I'd be on to the manufacturer about that.
No I don't think it is a brake problem after zooming right in on it , the cracks in the tread pattern look like the carcass is breaking up , I'd get them off as soon as possible what Pressure does it have in it ?
I just checked, 27 so it's a little low but definitely not flat, I put it back up to 36 now. I've emailed the supplier to see if there is anything he can do, if not, I'll go to Bridgestone and raise it as an issue with them and see what they say.
Low pressure could cause more friction and in theory cause a build up of heat, I would definitely get in touch with however fitted it also wouldn’t be riding my bike with a tyre in that condition.
I don't mean to be disrespectful but you're better off getting it to someone who can diagnose the problem. To check for front brake binding you need to get that wheel off the ground to make sure it spins freely. If it was mine I'd want to do that hot and cold just to be sure. To be honest, if there was even a hint of binding I'd be pulling the calipers off to make sure that all the pistons are moving freely but that's just me. You also need to ensure that the brake lever has enough play just in case that's a problem. I know that this sounds a lot of work given that it only *might* be the problem but if you consider for the moment that it is the problem... if the heat of constant breaking is doing that to the tyre then imagine how little extra braking might be required to lock that wheel up on a low friction surface. For me it wouldn't be worth the risk. On the other hand it might just be a bad tyre but there's no way I'd simply put another one on without checking all of the above.
I’d be checking a few things like tyre pressures, could be hot or cold tears depending if under or over inflated, make sure your pressure gauge is measuring right might be worth checking suspension also as this could have an adverse affect if adjusted recently, or maybe they need servicing? Possible wheel alignment problem
sounds like it's coming together. What I call feathering, I had once previously but nothing like yours because of low pressure. 27 is far far too low and in my mind ties up with your picture! It is 27 at the current ambient temperatures, you are lucky the tyre didn't come off during cold temps! I wouldn't be surprised if neither the manufacturer nor the fitter accept liability for the condition of the tyre
Problem for you is even if you find your brakes are binding a bit you will need to put a new tyre on regardless. That will mean we will never know for sure if a binding brake caused that, I don't see it though.
Spot on but he’s not gonna get any change from the supplier, they’ve overheated due to under inflation.
Well I'll be getting a new one fitted tomorrow or Friday, old one will be sent away so I'll let you know the outcome could be under inflation but do the tyres not deflate at the same rate? That would mean my rear should be just as cracked?
My tyres tend to deflate at different rates. Can't say as it's a rule of thumb but my front sometimes drops a few psi if I've not checked it for a few weeks whereas my rear has always remained pretty constant. Have tried to get into a habit of checking them both at least every fortnight, amazing the difference in handling just a few psi seems to make.
Always check my bike tyres every time I ride they can lose 2psi every few days also depends on air temp same on pedal tyres 100psi leave them for 4/5 days go down to 90psi car tyres always check once a month they are usually ok but can lose 2/3 psi so if you leave it down to 27psi surely it felt weird on cold roads...
I make a point of wheeling my bike out of my garage before I ride off, any change of resistance is easily noticeable. Bit extreme but once I left a rag on the chain after cleaning it , the rear locked up instantly dread to think what would have happened if I just rode off!
I seriously doubt under inflation is the problem here. Even if your front brake was binding, surely it would have to be binding significantly to produce that kind of wear. So if you were to add these two issues together, it must've been handling like a pig. Personally I've inadvertently ridden with the front tyre under inflated but I didn't get that kind of wear pattern. Like others on here I'd be interested to know the outcome/verdict.
Whilst out riding my bike today I wondering about this. Can you check the wheel rotation arrows on the tyres. I suspect it's been fitted with the wrong rotation. Does it say its a front tyre fitment?
Good point about the rotation direction. If so, the fitter should foot the bill Wozza you should not lose 2 psi every few days unless the ambient change is 2deg+ depending on the tyre size tyre pressure change with temperature varies depending on the volume of air inside so the skinny front shows higher variation to the fat rear. IMO binding brakes has to cause micro lockup’s of the wheel and this would sure be noticeable and the bike unridable!
I've just had an S22 fitted to the front, your tyre is definitely on the correct way round. Incidentally I checked my rear tyre pressure after being stood still on a paddock stand since September and it had dropped to 35psi from 42. Not bad for nearly 9 months. I never notice any drop in pressure through the summer riding season.
Yes I know it depends on the air temp set one hot day then if you check on a cold morning different again ,,thing is on the costa del south one day 24c next day 7c so as you say it can put them out 1 or 2 psi...
