My friend did a great job he modified his bike to a next level. Customized it in a perfection and complteltely replaced the overall parts with new. Changed Piston, Piston rings, valve jets, Clutch plates and assembly, engine guard, new alloys, metal plated engine. Overall modification cost around 20-23k.
This is for those who loves Yamaha RX100, even thought its not even a competitor in this gen bikes but still it holds a place in the heart of bike maniacs.