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Adapters & couplers
Lezyne bike light mount to GoPro adapter
Lezyne Macro Drive, Lite Drive and Micro Drive lights slide onto a small rail on their strap bracket. This adapter reproduces that rail so the light slides straight onto a GoPro fork under a Garmin or Wahoo out-front mount, giving a clean cockpit and moving the beam ahead of the bar bag. The rail is 30 mm long with a dovetail profile you measure from your bracket, a 1 mm stop at the rear and a 0.15 mm clearance, sitting on a two-finger GoPro fork with 3 mm fingers and a 5.2 mm hole. Print it rail-up in PETG at 0.12 mm layers for a smooth slide. Open the ready-made model free, resize it on your phone or computer, then download a print-ready STL, 3MF or G-code sliced for your printer, free.Opening the ready-made model and downloading it as STL or 3MF are free, no card; AI changes use credits, from Maker at $7.99 a month.No printer? We print this part and ship it to your door. See its priceUpdated
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Adjust
Change its numbers in the viewer for free, or ask the AI in the chat: wall thickness, hole size, the thing it clips onto. AI changes use 2 credits per request (1 for a quick edit, 3 for a redesign), paid with a plan from Maker at $7.99 a month.3Print
Download a watertight STL or 3MF free, with your numbers and hand edits, or G-code sliced for your printer at the same price. After an AI change the download is included in every plan (4 credits without one).
Dimensions of the ready-made model (editable)
| Parameter | Value |
|---|---|
| finger thickness | 3 mm |
| pivot hole diameter | 5.2 mm |
| finger height (radius area) | 14 mm |
| finger width (into page) | 18 mm |
| hole center height from base of fork | 6 mm |
| height of post above fork top | 10 mm |
| depth of post | 8 mm |
| length of dovetail rail | 30 mm |
| width at top of dovetail | 12 mm |
| width at base of dovetail | 9 mm |
| height of dovetail | 4 mm |
| clearance to subtract from nominal dims (male part undersized) | 0.15 mm |
| end stop height (extra wall at one end) | 1 mm |
| length of end stop block | 3 mm |
Example prompt
Model a GoPro to Lezyne light adapter with a two-finger GoPro fork (3 mm fingers, 3.2 mm gap, 5.2 mm hole) supporting a 30 mm long dovetail rail 12 mm wide at the top, 9 mm at the base and 4 mm tall with a 1 mm end stop and 0.15 mm clearance.
Fit notes
Lezyne has changed the rail slightly across generations, so an old downloaded file may not click home. In SpeakCAD you type the measured rail width and height, preview the adapter in the browser, refine the tolerance in the chat, then download the STL.
Questions people ask about a Lezyne bike light mount to GoPro adapter
Lezyne Macro Drive, Lite Drive and Micro Drive lights slide onto a small rail on their strap bracket. This adapter reproduces that rail so the light slides straight onto a GoPro fork under a Garmin or Wahoo out-front mount, giving a clean cockpit and moving the beam ahead of the bar bag. The rail is 30 mm long with a dovetail profile you measure from your bracket, a 1 mm stop at the rear and a 0.15 mm clearance, sitting on a two-finger GoPro fork with 3 mm fingers and a 5.2 mm hole. Print it rail-up in PETG at 0.12 mm layers for a smooth slide.
Click Open it free on this page and create a free account (no card): the ready-made model opens in your browser, on your phone or computer, nothing to install. Change its numbers in the viewer for free and download a watertight STL or 3MF free, or G-code sliced for your printer at the same price. An AI change in the chat uses 2 credits per request (3 for a redesign), and the download after it is included in every plan (4 credits without one). Start with Maker: 50 credits a month for $7.99, cancel anytime.
On this page: open the ready-made model free in a SpeakCAD account (no card), change any dimension in the viewer, then download the STL or 3MF free, or G-code sliced for your printer at the same price.
A shared STL is modelled for someone else's measurements. Here you open the ready-made model free, change it to your measurements in the viewer, then download a file sized for the part you actually own, free as STL or 3MF.
Yes. SpeakCAD slices the part on its servers with OrcaSlicer and your printer's official profile (380+ printers, including Bambu Lab, Prusa, Creality and Elegoo), and you download the G-code (a sliced .gcode.3mf for Bambu Lab printers). G-code sliced for your printer costs the same as the STL: included in every plan, free for a part you shaped by hand, 4 credits without a plan for a part with AI work in it. Pick your printer on the printers page to see its profile.
No. SpeakCAD runs in the browser on your phone or computer: the chat, the 3D engine and the live viewer load in the tab. The only file you download is the finished STL, 3MF or sliced G-code.
Print it your way
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