The decision to upgrade your motorcycle's tire size should be made after careful consideration and consultation with a professional mechanic or tire specialist. While it is technically possible to change the tire size on your Bajaj NS 160 from 110/80 R17 to 140/60 R17, there are several factors to consider:
Clearance: The larger tire may have different dimensions, and you need to ensure that it fits within the available space without rubbing against any part of the bike, such as the fender or swingarm.
Handling and Performance: Changing the tire size will affect the bike's handling characteristics, including its cornering ability, stability, and acceleration. A larger tire may provide more grip, but it could also impact the bike's agility and responsiveness.
Speedometer Accuracy: Changing the tire size can affect the accuracy of your speedometer and odometer readings. The larger tire circumference may result in an overestimation of your speed and an underestimation of the distance traveled.
Suspension Setup: The suspension of your motorcycle is designed to work optimally with specific tire sizes. Changing the tire size may require adjustments to the suspension settings to maintain the bike's balance and ride quality.
It is strongly recommended to consult with a professional mechanic or tire specialist who has experience with your specific motorcycle model. They will be able to provide guidance on the suitability of the tire size upgrade and address any potential issues that may arise from the change.