Quick Summary
The ROCKBROS side-access bike bottle cage is a red aluminium alloy holder weighing 40 g. It is specified for bottles with a diameter of 72 to 75 mm and is listed for road, mountain and folding bikes, provided the frame has threaded mounting holes.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand and model | ROCKBROS, model 31210024002+BS-03BK. |
| Access | Side access is specified in the product title. Check that the cage orientation and surrounding frame space allow you to reach the bottle. |
| Material and weight | Aluminium alloy; 40 g. |
| Bottle diameter | 72 to 75 mm. Compare this range with the bottle you intend to use. |
| Mounting | Uses two screws and requires threaded holes in the bicycle frame. An Allen key is not provided. |
| Stated bike types | Road, mountain and folding bikes. The frame must also have the required threaded holes. |
| Colour | Red. |
Compatibility, Size and Fit
Check both the bottle diameter and the frame before choosing this cage. The stated 72 to 75 mm range is a useful fit check; it does not establish compatibility with bottles outside that range. Although road, mountain and folding bikes are named, the frame needs threaded mounting holes for the two screws.
Side access can matter where frame space is restricted. Consider whether there is room to remove and replace your bottle along the cage’s access side.
What Is Included
The listing specifies two mounting screws and says an Allen key is not provided. Check the selected configuration for the exact supplied contents.
What to Compare Before Buying
- Bottle diameter: compare your bottle with the stated 72 to 75 mm range.
- Frame mounting: confirm that the bicycle has threaded holes for the two screws.
- Access and clearance: check that the side-access arrangement suits the space around your frame.
Before You Decide
Confirm the bottle diameter, threaded frame holes and clearance for side access. Bear in mind that an Allen key is not provided.










