Mr. Shah, I posted this on the tyre thread yesterday: Nice to read that you are planning to change your tyres even though they have done only 31000 kms instead of the regular attitude of killing the tyre before changing them . Those prices for the MRF are damn cheap compared to the competition. If you have any good reviews for them you should try them. Out of the other three if the Goodyear Gsd3 F1 are the uni directional one's I suggest you stay away from them as they are quite noisy. I have used the GSD3's but in assymetric tread pattern which are less noisier but were very grippy, both of these are UHP (Ultra High Performance tyres) and will have a stiff side wall so your ride will not be as comfortable. Yes you can use 205/60 r16 instead of 205/55 r15 on the tjet but the overall diametre of the tyre will increase marginally as there is going to be more rubber/tyre that before. I suggest you stick to 55 as 60 would ruin handling.