CBZ x-treme new a torublesome bike- gear problems

Hello guys,
I am very much fed up with the latest model of cbz x-treme. Which have the lots of parts prolems :-
Once the alloy wheel broked down and the most highlighted problem is gear box. The gear box had break downs twice in the 8 months of purchase. My bike was at showroom twice for 2 month because of gear problm.
This is the totally defected piece as the gear problms is continuing now also. All of my routine works are disturbed by this problem.
What to do in such situation can anyone help out?

I think it will be if it has completed only 8 month and gears brokers 2 times this is insane. I think you must file a complaint to the showroom owner and tell them to fix the problem permanently.