Is this 3D model free to download?

Yes, Shimano 105/Ultegra STI Main Lever Support is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by MyMiniFactory. Use the "Download from MyMiniFactory" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by Marcelo Moreira Xavier, published on MyMiniFactory. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

Shimano 105/Ultegra STI Main Lever Support 3D printable model by Marcelo Moreira Xavier

Shimano 105/Ultegra STI Main Lever Support

Source: MyMiniFactory by Marcelo Moreira Xavier

The Shimano 105/Ultegra STI Main Lever Support is a free printable 3D model from MyMiniFactory by Marcelo Moreira Xavier. T This a part to solve a frequent problem with Shimano 105 (R7000 series) and Ultegra (R8000 series). You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from MyMiniFactory

30 saves Source: MyMiniFactory Updated 2026-10-05 License: CC-BY-NC-SA · non-commercial 1 makes

Tags: bike, lever, road, shimano, STi, 105, Ultegra

About this model

T This a part to solve a frequent problem with Shimano 105 (R7000 series) and Ultegra (R8000 series). For some reason, after a few months in use, the shifter stops engaging to chance the front gear. The solution (if there is no warranty) is to change or customize the part named "Main Lever Support" (Y63X80010), adding about 3mm to it. I designed a slight different replacement, but with the aditional 3mm in thickness. The diferences aim to make the part stronger on thin walls and easyer to install with a shorter pin. Between the two STL files the only difference is the pin lenght A special thanks to Youtube user 3dlx for discovering the solution. You can find his video is bellow.

Frequently asked questions

Is this 3D model free to download?: Yes. Shimano 105/Ultegra STI Main Lever Support is free to download from MyMiniFactory. Open it in the free Thinger app, or use the "Download from MyMiniFactory" link above to open the original listing.
Where is the STL hosted?: The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by Marcelo Moreira Xavier.
Who made this model?: Designed by Marcelo Moreira Xavier, published on MyMiniFactory. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.