Sooner or later everyone runs into the luggage problem on a motorcycle: a laptop for work, shopping from the supermarket, camping kit for a long trip. The solution is a bag, but choosing one raises more questions than you would think: A top box or panniers? How many litres? Must it be entered on the registration document, and is there a fine if I do not? In this guide we explain the legal side first, then the types of bag and what to watch for when choosing.
Must a top box be entered on the registration document?
Article 32 of the Highway Traffic Act is clear: any modification made to a vehicle in accordance with the regulations must be entered on the vehicle registration certificate or records by the operator within thirty days. If this is not done, a 1,000 TL fine is imposed on the operator and the vehicle is barred from traffic until the modification is entered on the registration certificate. The penalty for a modification contrary to the regulations is 5,000 TL and a bar until the vehicle is brought into compliance.
The most frequently asked example on this subject is rear delivery boxes fixed to the motorcycle. Under the practice based on a 2014 letter from the General Directorate of Security, rear boxes must be entered on the registration certificate with the wording "Delivery Box Present"; there have also been news reports of couriers having to remove their boxes during checks because of a box that had not been entered on the registration document.
We could not find an official regulation saying that a separate registration procedure is needed for tank bags or soft bags fitted with straps and easily removed. If you are making a permanent rack and box installation, plan the process from the start.
Steps for registering it
The process generally followed is this:
- Modification project: A project for the delivery box is prepared by an authorised vehicle project engineer; this document is called the modification conformity certificate.
- Modification inspection: A modification inspection is carried out at a TÜVTÜRK station with the motorcycle and the project document.
- Entry on the registration document: After the inspection, the note "Delivery Box Present" is entered on the registration certificate at a notary.
Project, inspection and notary fees vary by provider and year; there is no single official total fee for 2026. Before applying, ask TÜVTÜRK and the notary for the current document list and, so as not to miss the thirty-day period in the law, plan the procedures before having the box fitted.
If you will work as a courier, having the delivery box entered on the registration document is one of the first steps of the job; the other requirements are in the guide to starting as a courier.
Types of bag
| Type | Advantage | Disadvantage | Who is it for? |
|---|---|---|---|
| Tank bag | Within reach, map and phone pocket, easy to remove | Small volume; magnetic ones will not hold on a plastic tank | Daily use, short rides |
| Top box | Lockable, waterproof, models that can take a helmet | Weight is carried high; needs a rack and fitting | Commuting, city use, couriers |
| Hard panniers | Large volume, low centre of gravity, lockable | Widens the motorcycle, racks are expensive | Long distance, touring |
| Soft panniers (saddlebags) | Light, cheap, fit many motorcycles | Heat risk if close to the exhaust; open to theft | Occasional tours |
| Seat / roll bag | Waterproof models, fit any motorcycle with straps | Hard to get into | Camping, long distance |
The options are on the pages for motorcycle bags, hard cases and luggage nets.
What to look for when choosing
- Volume: Top boxes are usually sold by litres. If you want to put in your full-face helmet, make sure the product description says that the helmet fits; helmet sizes vary greatly by model.
- Load limit: The maximum load racks and boxes can carry is written on them or in the instructions for use. Exceeding this limit can break the rack. Do not forget the total load limit in your motorcycle's manual either.
- Fitting: Model-specific rack fittings are the sturdiest solution. With universal fittings, make sure the attachment points are really load-bearing points.
- Plate and lights: The bag or rack must not cover the plate, brake light or indicators. Obstructing the legibility of the plate carries heavy penalties; the fine for a plate that does not comply with the regulations is 4,000 TL.
- Exhaust clearance: Soft panniers can melt or catch fire if they touch the exhaust; use a heat shield or spacer.
- Waterproofing: "Water-resistant" and "waterproof" are not the same thing. Check whether soft bags come with a rain cover.
- Lock and security: A lock on hard cases and a detachable design on soft bags matter against theft. Precautions for the motorcycle itself are in the theft guide.
Golden rules of loading
- Heavy items low and forward: Place the weight as close to the middle of the motorcycle and as low as possible. Weight put on top of a top box lightens the steering and unbalances the motorcycle.
- Balanced left and right: Fill the panniers to a similar weight.
- Tie down firmly: Check the straps and nets before riding; luggage that flies off endangers the person behind you.
- Adjust the tyres and suspension: For heavy loads, apply the loaded tyre pressure from the manual and, if there is one, increase the rear suspension preload. See the tyre pressure guide.
- Take the first kilometres calmly: A loaded motorcycle takes longer to stop and turns more heavily; start braking early.
Recommendations by use
- Commuting: A top box or tank bag for a laptop and helmet. We explained choosing a motorcycle for commuting in the commuting guide.
- Weekend rides: A tank bag and a small seat bag are often enough.
- Long distance and camping: Panniers and a waterproof roll bag. For a list, see the long journey preparation checklist.
- Long distance on a 125 cc: Keep it light; details are in the long distance on a 125 cc guide.
- Scooter: Under-seat storage capacity varies greatly by model; look at this figure when choosing a scooter. See city scooters.
Conclusion
Every modification made to a motorcycle in accordance with the regulations must be entered on the registration document within thirty days; if not, there is a 1,000 TL fine and a bar from traffic. For fixed rear delivery boxes the practice is the "Delivery Box Present" note; the process consists of the project, the TÜVTÜRK modification inspection and notary steps. When choosing a bag, look first at the load limit, then fitting, the visibility of the plate and lights, and weight balance, before volume.
Frequently asked questions
Is there a fine if I do not enter a motorcycle top box on the registration document?
Under the law, if a modification to the vehicle in accordance with the regulations is not entered on the registration document within thirty days, a 1,000 TL fine is imposed on the operator and the vehicle is barred from traffic until it is entered on the registration document.
Is a tank bag entered on the registration document?
We could not find an official regulation requiring a registration procedure for tank bags and soft bags that are easily fitted and removed. The subject is generally about rear delivery boxes fixed to the motorcycle.
Does a motorcycle with bags pass inspection?
We could not find an official statement from TÜVTÜRK on this. Having the bag entered on the registration document removes the question mark both at roadside checks and at inspection.
How many litres should a top box be?
It depends on your use. If you will put your helmet in it, choose a model whose manufacturer states that a helmet fits; do not buy a bag larger and heavier than necessary, because as the weight increases the motorcycle's balance is upset.