1
Brackets & mounts
Garmin Varia radar mount for aero seatpost
The rubber band mount supplied with the Garmin Varia RTL515 and RCT715 is designed for round posts and sits crooked on the D-shaped aero seatposts found on Canyon, Trek and Specialized road bikes. This mount has a cradle shaped to the flat back of the post, two 20 mm slots for a hook-and-loop strap, and a Garmin quarter-turn socket angled 17 degrees so the radar hangs vertical on a typical 73 degree seat tube. Walls are 3 mm, the socket tabs match the Varia's own mount, and a thin 1.5 mm TPU pad or a strip of rubber stops slipping on carbon. 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
2
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 |
|---|---|
| seatpost width (X) | 30 mm |
| seatpost depth (Y) | 55 mm |
| cradle wall thickness | 3 mm |
| clearance around post | 0.3 mm |
| cradle band height (Z) | 40 mm |
| front opening width for strap tensioning | 12 mm |
| strap slot height (Z extent) | 20 mm |
| slot length in Y (front-back) | 8 mm |
| arm length from cradle rear to disc | 22 mm |
| arm cross section width | 16 mm |
| arm cross section thickness | 8 mm |
| quarter-turn base disc diameter | 24 mm |
| base plate thickness | 3 mm |
| tab height above plate | 2.5 mm |
Example prompt
Design a Garmin Varia radar mount for an aero seatpost 30 mm wide and 55 mm deep with a D-shaped cradle 3 mm thick, two 20 mm strap slots, and a Garmin quarter-turn socket tilted 17 degrees rearward so the radar hangs vertical.
Fit notes
Every aero post has a different width and curvature, so a generic part rocks and the radar misreads. Tell SpeakCAD the post width, depth and your seat tube angle, preview the cradle in the browser, fine-tune the fit in the chat, then download the STL and print it in PETG.
Questions people ask about a Garmin Varia radar mount for aero seatpost
The rubber band mount supplied with the Garmin Varia RTL515 and RCT715 is designed for round posts and sits crooked on the D-shaped aero seatposts found on Canyon, Trek and Specialized road bikes. This mount has a cradle shaped to the flat back of the post, two 20 mm slots for a hook-and-loop strap, and a Garmin quarter-turn socket angled 17 degrees so the radar hangs vertical on a typical 73 degree seat tube. Walls are 3 mm, the socket tabs match the Varia's own mount, and a thin 1.5 mm TPU pad or a strip of rubber stops slipping on carbon.
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
More brackets & mounts
reMarkable Paper Pro wall dock with Marker slotReady-made, opens free. A wall dock that holds a reMarkable Paper Pro (about 274 × 197 × 5.1 mm) and parks the Marker Plus in a 12 mm bore 140 mm deep.Mac mini M4 Pro VESA 100 bracketReady-made, opens free. A VESA 100 bracket that hangs a Mac mini M4 Pro behind a monitor, 130 × 130 mm plate with 20 mm standoffs and four M4 holes.Wall holder for a laptop power brickReady-made, opens free. A cradle that holds a power supply brick against the wall or under a shelf, keeping it off the carpet where it collects dust and overheats.Hidden AirTag mount under bike saddle railsReady-made, opens free. A small clamshell that bolts between the two 7 mm rails under a bicycle saddle and hides an Apple AirTag (31.9 mm diameter, 8 mm thick) where a thief will no…Philips Hue Play light bar monitor clip mountReady-made, opens free. A clip that hangs a Philips Hue Play light bar on the back of a monitor without the stock adhesive feet.Elegoo Neptune 4 build plate wall hanger rackReady-made, opens free. A wall rack that stores three spare Elegoo Neptune 4 or Neptune 4 Pro flexible PEI plates (235 by 235 mm) on edge so the coating never touches another plate.