Bike Frame Adapter for Fidlock - Zip-Tie Mount

Fidlock Bike Frame Adapter

This low-profile adapter allows a compatible Fidlock bottle base to be installed on a bicycle frame when suitable bottle-cage mounting bosses are not available.

Instead of drilling the frame or using a bulky clamp, the adapter is secured with two strong zip ties routed through the integrated transverse slots.

The Fidlock base is attached using two M5 screws and two standard M5 hex nuts . Integrated hexagonal recesses keep the nuts captive and prevent them from rotating during tightening.

Main Features

- Designed for compatible Fidlock bottle bases with 64 mm mounting-hole spacing - Two Ø5.5 mm through-holes for M5 screws - Integrated recesses for standard M5 hex nuts - Two transverse slots for zip-tie mounting - Low-profile shape designed to remain close to the bicycle frame - Flat, support-free printing orientation - Suitable for bicycles, mountain bikes and e-bikes - Single-piece design with no printed assembly required Dimensions

- Overall length: 106 mm - Maximum width: 24.9 mm - Central body width: approximately 17.2 mm - Overall thickness: 7 mm - M5 hole spacing: 64 mm centre-to-centre - M5 through-hole diameter: approximately 5.5 mm - Hex nut recess: approximately 8.4 mm across flats - Hex nut recess depth: approximately 4.3 mm - Zip-tie slot opening: approximately 7.2 × 3 mm Zip ties approximately 4.8–5 mm wide are recommended.

The maximum practical width is approximately 6.5 mm , depending on the actual shape and thickness of the zip tie.

Compatibility

The adapter was designed around a 64 mm centre-to-centre M5 mounting pattern .

Check the mounting-hole spacing and hardware requirements of your specific Fidlock base before printing.

It is not intended to be a universal adapter for every Fidlock product or every bicycle frame.

The Fidlock base, bottle, screws, nuts and zip ties are not included.

Required Hardware

- 2 × standard M5 hex nuts - 2 × M5 screws of a suitable length for your Fidlock base - 2 × strong zip ties , preferably UV-resistant - Optional M5 washers - Optional thin rubber, TPU or protective tape between the adapter and the frame The required screw length depends on the thickness and design of the specific Fidlock base.

Test the assembly before installing it on the bicycle. The screws must engage the nuts securely without bottoming out or pressing against the bicycle frame.

Assembly

- Insert the two M5 nuts into the integrated hexagonal recesses. - Position the compatible Fidlock base on the adapter. - Insert the two M5 screws and tighten them lightly. - Position the assembly on the desired frame tube. - If needed, add a thin TPU, rubber or protective tape layer between the adapter and the frame. - Route one zip tie through each transverse slot and around the frame. - Tighten both zip ties gradually and evenly. - Tighten the M5 screws without crushing or deforming the printed adapter. - Cut off the excess zip-tie length. - Check that the adapter cannot rotate, slide or move before use. Do not overtighten the screws or zip ties.

Recommended Materials

PETG Recommended for most users because it provides a good balance of toughness, weather resistance and ease of printing.

ASA Preferred for prolonged outdoor exposure, strong sunlight or higher temperatures, provided it is printed correctly in an enclosed printer.

ABS Can also be used, although ASA is generally preferable for long-term outdoor exposure.

PA / PA-CF and other engineering materials Suitable when higher mechanical or thermal performance is required, but they require appropriate printing equipment and properly dried filament.

PLA Suitable for prototypes and fit testing, but not recommended for the final outdoor part or high-temperature environments.

Recommended Print Settings

- Printing orientation: flat, with the hex nut recesses facing upward - Layer height: 0.16 mm - Wall loops: 2 - Top layers: 6 - Bottom layers: 4 - Infill: 10% - Infill pattern: Gyroid - Supports: not required - Wall generator: Classic - Ironing: disabled - Adaptive layer height: not required For additional reinforcement, local modifiers can be used around the M5 holes and zip-tie slots with additional walls or 100% infill.

Safety and Inspection

Before riding, verify that the adapter, bottle and Fidlock base are firmly secured.

Regularly inspect:

- zip-tie condition and tension - M5 screw tightness - printed layers around the holes and slots - cracks, deformation or movement - the bicycle frame surface beneath the adapter Replace the adapter or zip ties if damage, loosening or deformation is detected.

Use additional caution on carbon-fibre frames and follow the bicycle manufacturer's recommendations regarding clamping and frame protection.

Boost Me If this adapter solved a tricky bottle-mount position on your bike, a Boost is appreciated. Trademark Notice

This is an original, independently designed adapter .

Fidlock is a trademark of its respective owner and is mentioned only to describe compatibility.

This model is not manufactured, approved, endorsed or sponsored by Fidlock.