I am using bajaj discover 135 dtsi from last 6 years and I am very satisfied with the bike. I bought it 6years ago. It was stylish and had a sporty look. And has a good mileage of 55-60kmpl till now. After purchasing of bike , it did not punchured for first 3 years. And it has not any major issue till now. I am still using that bike and it runs same as it runs when it was new. It has 135cc engine which is not very heavy nor very light. Bike can handled easily. It has disk brake on front wheel and a digital meter.at last all I can say is, it was my first bike and it is lucky for me.