Quick Summary
THUNDER CARRIER aluminium roof bars for the Mercedes GLB-Class SUV are a lockable pair of crossbars made for raised side rails. The stated fit is for the Mercedes GLB-Class SUV X247 from 2020 onwards. The bars are described as aluminium roof bars with a low-profile wing shape.
The stated load capacity is 75 kg dynamic for driving and 225 kg static when parked. They are presented as a pair and include lockable anti-theft covers with keys.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Aluminium roof bars / crossbars for raised side rails. |
| Vehicle fit | Mercedes GLB-Class SUV X247 (2020 onwards). Check the exact vehicle version before choosing an offer. |
| Pack quantity | Pair. This matters if you need a matched set for one vehicle. |
| Load capacity | 75 kg dynamic load and 225 kg static load. Compare these figures with the load you plan to carry and whether the vehicle is parked or moving. |
| Material | Aluminium. This is the stated bar material. |
| Security feature | Lockable anti-theft covers with keys included. |
| Fit adjustment | ±5 cm width adjustability. Check that this suits the roof rail spacing on the exact vehicle. |
| Installation | No drilling required. |
What to Compare Before Buying
- Vehicle fit: These bars are for the Mercedes GLB-Class SUV X247 from 2020 onwards with raised side rails. Confirm the exact vehicle version matches.
- Load limit: Compare the stated 75 kg dynamic and 225 kg static figures with the load you need to carry.
- Rail style: The bars are made for raised side rails with a gap underneath, so check that your roof rails match that layout.
- Pack quantity: This is a pair, which is the normal format for a roof-bar set.
- Fit adjustment: The ±5 cm width adjustability should suit the vehicle’s roofline spacing only if the measurements line up.
Compatibility, Size and Fit
These roof bars are specified for the Mercedes GLB-Class SUV X247 from 2020 onwards with raised side rails. They are not a universal fit item. The stated adjustability is ±5 cm, so the final fit still depends on the exact vehicle and rail layout.
If your vehicle does not have raised side rails with a gap underneath, or if it is a different GLB version, a different roof-bar set should be considered.
What Is Included
- 1 pair of THUNDER CARRIER aluminium roof bars
- Lockable anti-theft covers
- Keys
Before You Decide
Check the exact Mercedes GLB-Class version, especially the X247 from 2020 onwards, before choosing an offer. Confirm that your vehicle has raised side rails with a gap underneath, and compare the stated 75 kg dynamic and 225 kg static load figures with your intended use. Also check that you need a pair of lockable roof bars rather than a different roof-rack format.
