pro 4 sidewall failure

[potsy]

Blimey get rid of it ASAP

 

[Smurfy]

I wouldn't dare go above 10mph on that!

 

[jack smith]

It was recommended by a lot online I'm not going to run it as a permanent tyre I'm going to stick a conti ultrasport on to replace it that have lasted me ages, I just wanted to test out their methods, some claim to have done thousands of miles on the same fix but this was done merely as a test Michelin have offered to take a look at it agai, I'm surprised they bothered contacting me back after these were already a replacement for the same issue

 

[fossyant]

Can't blame mine on anything more that a sharp edged pothole. Goint to see if the council will cough up (just to proove a point).

 

[fossyant]

Michelins and other dual compound tyres aren't allowed on the track for the reason of the dual compound - you'll be riding on the shoulder of the tyre between the two compounds at times, and that isn't good. Works a treat on the road though.

 

[jack smith]

from what i can tell the pro 4 has a hard not so grippy compound on the bit that actually runs on the road when not cornering to reduce wear and rr

 

[TissoT]

They won't replace them. You can sometimes find Pro 4s for around £22 on sites like Wiggle, CRC, Ribble etc.

Interesting footnote: I was at the Manchester Velodrome yesterday with my son and there's a fact sheet of dos and don'ts on the track. One of the don'ts was don't use Michelin tyres. I asked a coach the reason and he told me that they don't do well on the track; it's thought the rubber is of a harder compound than Contis or Vittorias as they skid easily.

I would say its the other way round Michelin s are a softer compound (when warm on timber) ....And they don nt want the track Boards marking !
I use Vittoria tubs (£50 + each) on my Track bike for Manchester velo .Tubs Deflate slower than conventional tyre/inner tube
And they maintain there shape when deflated .Thus giving you a chance to get off the Track without taking somebody out !

 

[jack smith]

just a little update, ive now put a schwable lugano on the rear instead of this but i did another test ride on the pro4 with the stitched sidewall and it was still solid as a rock, when i removed the inner tube there was no scuffing ect, i think if you really took the time to repair it, it could infact last the full lifespan of the tread the places i got the idea from seemed to say it would last the full life of the tyre.

 

[Globalti]

I would say its the other way round Michelin s are a softer compound (when warm on timber) ....And they don nt want the track Boards marking !
!

Maybe that was what he meant. His exact words were: "Michelins don't get on with the track", which I took to mean they are too skiddy.

 

[zizou]

Maybe that was what he meant. His exact words were: "Michelins don't get on with the track", which I took to mean they are too skiddy.

It is because they are dual compound and with the banking of the track the part of the tyre in contact when cornering is different to what it would be on the road so the grip is (potentially) not as predictable as a single compound tyre.

 

[outlash]

just a little update, ive now put a schwable lugano on the rear instead of this but i did another test ride on the pro4 with the stitched sidewall and it was still solid as a rock, when i removed the inner tube there was no scuffing ect, i think if you really took the time to repair it, it could infact last the full lifespan of the tread the places i got the idea from seemed to say it would last the full life of the tyre.

I can't believe I'm reading this. You wouldn't dream of doing this on any other road vehicle and I'm sure it wouldn't pass it's MOT on it either so why are even trying out as a 'test'? You're endangering yourself and others by having it on the bike. Sometimes tyres just go, it's happened to me, it's happened to others. Just accept it, replace it and move on before something bad happens.


Tony.

 

[Globalti]

Jack Smith is an African mechanic! Here's his truck tyre yesterday:

Here's Jack Smith's truck this morning:

 

[jack smith]

Many cyclists in particular tourers use the trick if you stitch enough threads into it it is very secure, my call if I want to test it out or not, I never intended it as a permanent thing but it just goes to show if it's done properly, and to be hot I rushed it and put no care into it, it works fine. If you don't want to use it then don't.

 

[outlash]

Many cyclists in particular tourers use the trick if you stitch enough threads into it it is very secure, my call if I want to test it out or not, I never intended it as a permanent thing but it just goes to show if it's done properly, and to be hot I rushed it and put no care into it, it works fine. If you don't want to use it then don't.

Crap. Tourers only do that if they're stuck in the middle of nowhere without any other options. Given the choice, I'm sure they would get a new tyre. And if you think putting 100PSI into a 'repaired' tyre is a safe thing then riding it is a matter of personal choice then you clearly don't give a monkeys about anyone else on the road. Tyres are your only contact with the road, don't be stupid.


Tony.

 

[AndyRM]

It looks like you've done a solid job on the repair which is good.

Personally I'd not want to use a tyre like that for any more than gentle experimentation at low speeds, to check if I could perform such a job on a tour before getting to a new tyre. A rear blow-out at speed can be just about handled, but if that's on the front and it goes you could be in big trouble.