Bike Problem - alloy wheel bend, sound, vibrations?

For first question you have to change the alloy wheel.chirpping sound means because of the manufacturing technique of the engine.Manufacturer pointed on the mileage of the bike so they don't think too much about the performance of the engine. So that sound is necessary for better mileage. Lot of vibration because of the chain and sprocket. You better to change those. Symptoms of worn clutch plate is lower pickup and slip in speed while rapid acceleration. Do the engine overhauling and clean the silencer. All the best. But my personal suggestion is to change the bike, go for discover 125.