Adapters & couplers

Thule roof rack T-track adapter for bike carrier

Thule WingBar and WingBar Evo bars have a 20 x 20 mm T-track along the top, and older bike carriers, ski racks or DIY kayak saddles that clamp around a square bar cannot use it. This adapter is a 60 mm long T-slot nut 20 mm wide and 6 mm thick at the foot with a 12 mm neck, topped by a 60 x 40 mm plate with two M6 threaded holes on 30 mm centres for your accessory. Print it foot-down in PETG or nylon at 60 percent infill, and keep loads modest; use steel bolts and a safety strap for anything that leaves the car.

T-track widths differ between Thule, Yakima and Kuat bars, so a generic nut rocks or jams. Measure your track, tell SpeakCAD the slot dimensions and the bolt pattern of your carrier, preview the adapter free in the browser, refine it in the chat, then download the STL.

Get it nowGenerate and preview for free, in your browser. A download costs 2 credits.

Design a T-track adapter for a 20 x 20 mm roof bar slot with a 60 mm long foot 20 mm wide and 6 mm thick, a 12 mm wide neck, a 60 x 40 x 8 mm top plate with two 5 mm holes tapped for M6 on 30 mm centres and 1 mm chamfers.

Change any number to match what you measured. The AI keeps the rest of the design consistent, and small follow-up edits after a download are free.

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Make your thule roof rack t-track adapter for bike carrier now

Nothing to install and no CAD skills needed. Describe it, watch it render, download the STL or 3MF and print it tonight.

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Looking for a ready-made version? Check the marketplace, where makers sell finished, rated models for credits.