after eid holidays if you have a driver or a friend who can spare time goto Radio Pakistan on M.A Jinnah road at the entrance of tyre market on right hand side 2nd shop is SHAHID Tyres a heavy tall dark fellow with white beard name is shahid owner he always have fresh stock of Yokohama check for prices don get trapped in ' pehlay aap pattern tou pasand tou karyeay '. leave the shop after checking on pattern & prices and go around market. everyone in that market offer FREE Tyre change & Wheel balancing, the shop changing tyres will offer you a reasonable price for old ones, that will be another bargain finally 4 tyres will cost you less at change & going home.
all other shops in different localities will be charging premium for tyres and change / balancing will be extra