A bike bottle cage mounting base adds an attachment point without drilling into the bicycle. The ROCKBROS design uses a soft silicone strap around a suitable tube, with a built-in steel plate for M5 mounting hardware so you can position a separate bottle cage where it is convenient.
The silicone material helps cushion contact and resist slipping, while the strap’s retaining eaves help limit detachment from vibration. The stated tube diameter range is 22 to 55 mm, with strap stretch up to 220 mm. Three cable ties provide extra securing options, and two M5 screws plus a No.3 Allen wrench are supplied. Check the tube, cage and clearance before fitting; this item is the mounting base rather than the bottle cage itself.
Key Features
Hole-free strap attachment.
Soft, flexible silicone construction.
Built-in M5-aperture steel plate.
Retaining-eave strap design.
Multiple positioning possibilities on suitable bicycle tubes.
Cable ties, screws and Allen wrench included.
Specifications
Product: bottle cage mounting base.
Material: silicone with steel plate.
Stated tube diameter range: 22–55 mm.
Strap stretch: up to 220 mm.
Includes: three cable ties, two M5 screws and one No.3 Allen wrench.
