MashAllah many many congrats for the purchase, Do give sadqa
you bought red colour aur black colour
Dunlop 100/90 - 18 tire is available in karachi which Silver_Knife bought for 3800/- heres the pic which he uploaded but dont know from where he bought it.
Gull_s_777 has also changed rear tire of his GS-150 you can also look into his thread for Pics