You can check the manufacturing date on the tyres.....i dont rmb when i bought my ps3 and what mileage d. how u guys keep the record? lol est myb within 2 years gua.. tread level 50-60% before indicator
slightly off topic abit. i hear someone here sed he pump 210kpa, but i pump 270kpa front n 260 back, thats somewhere along 38, 39 psi
cuz lastime i pump 32psi like that, my dunlop bald habis the outside tread but the centre still damn good...so after i get the ps3, i pump it at least 260 like that. nowdays it wears out more evenly and the grip also better.
Vtec city
195/50/15R
Wah! 38 to 39psi, that is very very high air pressure. I use 250kpa for my 45 series, but if your level of pressure works for you, please carry on using....
---------- Post added at 10:47 AM ---------- 6 hour anti-bump limit - Previous post was at 10:46 AM ----------
In that case, TS should send back to Michelin for claim.....The wear could be caused by the ratio of natural rubber & SBR to produce the tire is out and the vulcanization (curing) process was not adjusted to the changed in ratio. All tires made need to go through a vulcanization process to improve the tire's properties so during the process, the polymers are all crosslink to each others to form chains. IF the vulcanization process was not adjusted properly according to the ratio it will affect the tires. The important thing in tires is the Dynamic properties which affect the flexing of the tires when it is moving. If the tire don't have good dynamic properties, it will crack and chip off easily.
Since , not all PS3 users complain about this problem, I believed this problem affect a certain batches of PS3. I've visited before rubber manufacturing plant and each time they received new raw material they have to go through lab test and adjust the mixture of S-SBR and the vulcanization process accordingly to the raw material because natural rubber from different country have different properties.
Hope the information helps..