I hit about a 3 inch 'imperfection' on a street in Chicago (around the corner from where I live) - and ripped the front right Goodyear rft after having my 550 for about a week - I must of driven this same street hundreds of times on my previous 335 with Potenzas and no issues - I bit the bullet and upgraded to 20' wheels with Hankook tires - and ordered a spare - in the interim, I'm driving around with one of the stock wheels as a spare...
My advice - when you can - replace those POS rfts...and kudos to you for driving in India - I cabbed from Pune to Mumbai a couple years ago - don't think I could have driven it myself without killing a few people, including myself...
