Highly disappointed with worst quality of tyres. I have these JK tyres installed in my car by company when I purchased the car. Within three years and 30k kms these tyres have hardened like a wood. There is no cushion for rough surface and I have started feeling like riding road roller on rough surface roads. On contacting company engineer, he said there is minor air in few tyres but not covered under warranty. Finding it like worst branded tyres available in India. One should re-think 100 ti...