How to choose a car trunk for the roof

1. Check the material of the roof and luggage compartment
The main materials used for producing roof boxes include fiberglass, ABS, ABS+ASA, ABS+PMMA, etc. The fiberglass roof box has long been phased out in the market, while the ABS roof box, although low in cost, has poor strength and aging resistance, and has gradually been abandoned by the world's major brand roof box enterprises. Currently, the improved materials have been widely used for production, mainly mixed materials with engineering plastics such as ABS+ASA or ABS+PMMA. Compared to ABS, it has higher strength and aging resistance, better flexibility, and a more delicate and high-end surface.
2. Check the load capacity of the roof and luggage compartment
The load-bearing capacity of a regular roof box is generally 50kg, while a high-quality roof box has a load-bearing capacity of up to 75kg, which is also the highest load-bearing capacity in the roof box industry. Compared to regular roof boxes, the load-bearing capacity is increased by 50%. For professional outdoor users, the 25kg gap can have more freedom to carry, but for roof boxes, there is a qualitative difference.
3. Check the dimensions and volume of the roof and luggage compartment
When choosing the size and volume of the roof box, it is important to focus on what items are most commonly loaded: firstly, longer items such as skis; Second, large size items such as inflatable boat and camping inflatable mattresses; The third is smaller items such as suitcases, tents, sleeping bags, barbecue stoves, etc. If you frequently load longer items, you should choose a longer roof box. If the private car belongs to a small or micro car, a roof box that matches the body size ratio should be selected.
4. Check the opening method of the roof and luggage compartment
The rear opening roof box is generally small in size, but it can easily retrieve and store items from the rear and left and right sides. The volume is about 300L, which is very convenient to use and relatively low in price; The roof box that opens on the right side is mostly of medium size, with a length of about 180cm and a volume of about 400L; The length of the double-sided opening roof box is generally 190cm or longer, and it is usually positioned as a high-end or flagship product, with a higher price.
5. Check the safety of the roof box
Any brand that emphasizes product safety will conduct strict testing and obtain relevant certifications for the products they sell. Currently, the most authoritative product safety testing and certification standard is mainly German TUV certification. Products that pass this certification can allow consumers worldwide to purchase with confidence, but currently, the brands that pass this certification are mainly foreign brands.
6. See compatibility
Pay attention to compatibility with the roof frame. This mainly depends on the fixation method with other roof equipment, mainly with the roof frame.
7. Pay attention to wind resistance and noise
More and more car enthusiasts are paying attention to the issue of wind resistance and noise during driving. Wind resistance can increase fuel consumption and also bring about wind noise.
8. Look at the appearance and design
Check if the roof box is in overall harmony with your own car, and if the colors match.
9. Clarify your purpose
If the purpose of buying a roof box is purely for work, and you hope to have as much space as possible, then a spacious and practical one is more suitable for you. If you are pursuing fashion, then fashion and aesthetics are more suitable, while considering the compatibility with the car.
10. Anti theft, shockproof, and other humanized designs
Is the design of the lock cylinder and key reasonable? Is assembly and installation convenient? Is it non-destructive installation? How is the anti-theft performance?
Summary: When selecting, understand key parameters such as brand, price, cost-effectiveness, material, fixing method, noise level during use, aesthetic level, size and volume, load-bearing weight, safety lock, and external dimensions that are suitable for the vehicle model.