My SX4 Zxi has done 51k kms. Is it time to change the such JK tyres? How do i decide if tyres are bad
To be precise 1.6mm thickness of tread should be available so as to continue on same tyres. Other way is to see if the treads are have levelled to the level of bridges in between them If tread thickness and bridge thickness is same, tyre change is immediately required before a long trip as long trip means tyres would face high temperature and might give way.
I have had no complains with the stock JK's as such but had a number of punctures and one tyre was torn on the sides too.
You definitely require tyres with better and tougher sidewalls than stock jk.
I have read on number of forums that Michelin and Yokohoma are soft, so not sure if they are suitable for regular driving in my town, where roads are bad.
Softness depends on ply rating (chemical composition and number of plies ) and not on the brand name of tyre.
Have read only good things about Apollo Acelere. But is the grip
.Acelere are premium tyres but they are entry level amongst premium tyres . They are often used as OE fitment by various car makers as a part of cost cutting.
I go upto 130kmph on the highway so need good braking also
for this speed and braking, ideally primacy 3ST are suitable. ST stands for Silence Tuned or Summer Tyres, they are silent than LC also. They are specifically designed for Asian conditions. Biggest USP is braking distance , it is 1.6m shorter than primacy LC. This means in emergencies you can save half of a hatch from getting compressed between your car and a truck ahead.
But I don't advice primacy 3 ST and primacy LC because you run your car on bad roads for substantial distance. And side wall of both primacy is just one ply(polyster) thick, in view of history of sidewall cut in your case, primacy series is going to worsen the things.
I also read about the new Apollo, Alnac 4G, which seems to be superior. Would anyone recommend this?
I don't know about them as they are new in market , but looking at the price, better to buy time tested Bridgestone and Michelin brands .
Anything better than the JK with similar or better braking, noise and grip in dry and wet conditions should do.
For these requirements Michelin 3ST are best choice, they are better than LC on these requirements. But for sidewalls and FE concerns I do not recommend them to you.
Bridgestone Turanza are best for you because the side wall contains 2 plys of polyester , hence they have tougher sidewall. They are little noisy as compared to primacy. But one can live with the noise because in my experience the noise is not nuisance, once music and ac is on.
If we move our fingers on polyester cloth, it makes more noise as compared to cotton cloth.
To, comment on potenza, we need to know your driving style, overtaking habits, cornering habits etc.