Cateye Bike Light Mount for 27.2mm Seat Post

A simple bike light mount
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updated November 23, 2025

Description

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A bike light mount designed for the Cateye TL-LD130 / TL-LD150 and similar Cateye lights.

A 6-32 screw and nut works well to secure it.

It's a friction fit with the bike light, if your tolerances don't provide a tight fit, then scale the appropriate axis a very small amount. This shouldn't affect post mount.

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Model origin

The author remixed this model.

Differences of the remix compared to the original

Changed seat post diameter compatibility to 27.2mm

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