Fat Tire

Nope, it's not the beer I am talking about (try it if you have not. pretty good)

She was weaving, fish-tailing, and sliding in the rain. and I wondered why. Wonder was short-lived when I discovered her back-tires had gone completely bald. After one extremely scary morning of driving on 880 from berkeley to mountain view, decided to change her grip.

And learnt quite a bit about tires and their hitherto unknown specs. Got her Michelen sports tires with 225/50R16 92W. 225 mm is the width of my rear tires. They are actually much wider than the front tires from greater stability. So, my tires cant be rotated like other cars. 50 is the ratio of the sidewall height by the width. Sports tires have a smaller ratio. 16 is the diameter of the tire.
92 is the load bearing capacity of the car, implying 630 kg in this particular instance. And the most important thing is W - the speed rating. With W, I can go upto 270 kmph. Have gone upto only 210 kmph till date. Raring to try it out soon. Okey, will inform you guys when I will be on road :-) my tires
some fundaes: 1 , 2