Is It Legal to Modify Bikes in India?

Yes, modifying bikes in India is legal, but only within strict limits.

Under Section 52 of the Motor Vehicles Act, a vehicle cannot be altered in a way that changes the original specifications set by the manufacturer. Structural changes, engine alterations, or unauthorised colour changes are prohibited.

In 2019, the Supreme Court clarified that no modification is allowed if it alters the manufacturer’s original design mentioned in the registration certificate. Only minor modifications (like decals or accessories) are permitted, with RTO approval.

Illegal modifications can lead to fines, vehicle seizure, or even jail.