Originally Posted by csajal

Well changing the handle bar would alter your riding posture and that's certainly not adviseable because the entire bike is designed for a more commuter friendly stance!!

Ya you can defintely go for Tube less rubber provided that your bike has alloy wheels. Modifying the swing-arm/wheels to have fatter tyres at back might help the bike look better but would defintely be a compromise of the average of the bike.