How do I install Sam's Transport Bits?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Sam's Transport Bits work with?

The listing gives Minecraft 1.21, 1.21.1, 1.21.2, among others. This is the version stated by the author or source site, not something we verified ourselves.

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Sam's Transport Bits

by samuelh2005 · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.21–1.21.4Newest

Minecraft 1.20.1–1.20.6Newest

⬇ Download for 1.21–1.21.4 · Fabric ⬇ Download for 1.20.1–1.20.6 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Sam's Transport Bits

formally Sam's Bits

Sam's Transport Bits, design your own road network and export to Open Street Map. Vehicles coming soon!

While the mod was originally created for personal use, it is publicly available, and more features are planned for future updates. Stay tuned as this mod continues to grow with more unique integrations and utilities!

Current features

Road creation system

Place Road Nodes on the ground where you have roads.

Interact a Road Node with a Road Connector to begin linking, interact another Road Node to finish linking.

Destroy Road Nodes to unlink.

Interact and sneak on a Road Node to get information of the node.

Export to Open Street Map (OSM)

Use the command /sams_transport osm_export <dimension> to export the road network to an OSM XML file.

Use your favourite OSM tools for rendering the OSM XML file.

Upcoming features

: Vehicle systems (In Progress)
- : Automated vehicles
- : Player driven vehicles (In Progress)

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.

For more information view the full ./LICENSE.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21, 1.21.1, 1.21.2
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

Ships as sams_bits-1.0.3.jar — drop this file into the mods folder
Download size: 7.7 MB
Download link checked 31 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21