Is Adding a Tail Box to a Motorcycle Considered Modification?
2 Answers
Adding a tail box to a motorcycle without applying for modification registration is considered illegal modification. Here is some information about vehicle modification: 1. "Motor Vehicle Registration Regulations": Changing the body color; replacing the engine; replacing the body or frame; replacing the entire vehicle due to quality issues; changing the use nature of the vehicle from commercial to non-commercial or vice versa; the owner of the motor vehicle should apply for modification registration at the local vehicle management office. 2. Legal Basis: According to Article 97 of the "Road Traffic Safety Law of the People's Republic of China": No unit or individual may assemble a motor vehicle or alter the registered structure, construction, or characteristics of a motor vehicle without authorization.
As a seasoned motorcycle rider who has installed top cases multiple times, I consider this a minor modification at best. Legally in many jurisdictions, modifications typically refer to altering the engine, exhaust, or frame – whereas a top case is simply an accessory, as removable as adding a phone mount, causing no permanent changes to the bike. For instance, during my long-distance tours, a top case proves invaluable for storing backpacks and helmets. Improper installation (like loose bolts or unstable racks) may affect balance, especially noticeable during cornering, but this doesn't constitute a core modification. Check local regulations – Germany's stricter TÜV certification may apply, while most US states permit it within weight limits. From rider communities, I've learned top cases rarely draw inspections, but prioritize quality brands over cheap options that risk detachment while riding. Ultimately, this is a practicality upgrade – don't overthink its classification as a modification.
