These are replacement front idlers carriers for BFI 2.4. Check both to see which has the better fit
Two Files:
Use the rest from https://github.com/clee/VoronBFI/tree/main
The author remixed this model.
Increase the Carrier hole for the Screw head by 0.5mm. As mentioned in the Assembly Manual. Screws can be larger and mines are https://github.com/clee/VoronBFI/blob/main/docs/Assembly_Manual_BFI.pdf
Two Files: