What is included in the Tubeless Sealant Funnel digital STL download?

The purchase includes 3 STL files: a Standard Funnel, an XL Funnel, and a Flat-Top Version. All files use 0.2 mm thread profiles optimized for high-quality printers. A maximum of 3 downloads is permitted per purchase. No physical item is shipped.

What 3D printer settings should I use for the Tubeless Sealant Funnel STL?

Print in PETG with a 0.4 mm nozzle, 3 walls, 25% infill, and a 10 mm brim for bed adhesion. A 0.12 mm layer height produces the best thread quality; 0.20 mm is acceptable. Supports are not required. If threads feel tight, scale the model to 101%; if loose, scale to 99%.

How does the Tubeless Sealant Funnel STL compare to pre-made plastic sealant funnels?

Pre-made sealant funnels are ready to use but require shipping and are limited to available sizes. The Tubeless Sealant Funnel STL lets riders print locally at a lower cost (CAD $9.49 for three size variants), reduces shipping emissions, and allows material or scale adjustments for a precise fit on Presta valve stems.

Can I buy the Tubeless Sealant Funnel STL from Canada, and is there anything to be aware of as a Canadian buyer?

Yes. Shockwave Parts ships from Canada and the product is priced in CAD ($9.49). Because this is a digital download, no shipping occurs — the STL files are delivered electronically after purchase, with up to 3 downloads permitted. Canadian riders benefit from the local-print model by eliminating cross-border shipping costs and delays entirely.

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Shockwave Parts

Tubeless Sealant Funnel | Digital STL (Print it yourself)

Q: Is the Tubeless Sealant Funnel compatible with all tubeless valve types?

The current release is designed for Presta valves only. A Fillmore-compatible version is in development, and a prototype STL is included in the download package for testing purposes.

$9.00 CAD

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License Type Personal Use

⚠️ Digital Product — No Physical Item Shipped

This product includes STL files only. You must print it yourself using a 3D printer. No physical funnel will be shipped.

Tubeless Sealant Funnel | Clean & Easy Sealant Refills

The Tubeless Sealant Funnel makes adding sealant to your tubeless tires simple, clean, and fast. It fits securely onto your valve stem and keeps the process drip-free, no need to remove the tire. Only works on Presta valves. A Fillmore-compatible version is in development, and a prototype is included in the package.

A Word to the 3D Printing & MTB Community

I put a lot of time, testing, and creativity into these designs, and I trust you to use them responsibly. Shipping parts worldwide isn't great for the planet, if riders can print locally, that’s already a win. Please respect my work: don’t redistribute or sell these files or printed parts without permission. If you’re a shop or workshop and want to sell printed parts legally, a commercial license is available below.

STL File Only (Digital Download)

This is a digital download. You are purchasing the STL files only to print the funnel yourself. No physical product is shipped.

A maximum of 3 downloads is allowed per purchase.

Print Specifications

Material: PETG
Nozzle: 0.4 mm
Layer height: 0.20 mm (0.12 mm recommended for perfect threads)
Walls: 3
Infill: 25%
Supports: Not required
Bed adhesion: 10 mm brim recommended

Tip: PETG works perfectly. PLA may feel looser.

You need a good printer for threads. If yours struggles, print slow (around 50 mm/s).

If the PETG threads feel too tight, try scaling up to 101%. If too loose, scale down to 99%.

What’s Included

3 × STL files: Standard Funnel, XL Funnel, and Flat-Top Version
Includes 0.2 mm thread profiles for high-quality printers
- For best results, print with 0.12 mm layers.
No physical item is shipped.

Liability Disclaimer

Downloading, printing, and using this file are at your own risk. Shockwave Parts is not responsible for property damage, personal injury, or print failures caused by incorrect use, poor printer setup, or unsuitable materials.

Acceptance of Terms

By completing your purchase, you confirm that you’ve read, understood, and agreed to the license and conditions above.

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Tubeless Sealant Funnel | Digital STL (Print it yourself)

Tubeless Sealant Funnel | Digital STL (Print it yourself)

Tubeless Sealant Funnel | Clean & Easy Sealant Refills

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