Custom Motorcycle Wiring Harnesses
Clean, serviceable motorcycle wiring for cafe racer rewires, resto-mod builds, dirt and adventure bikes, and fleet equipment.
MiniProto builds custom motorcycle wiring harnesses with Deutsch DT and DTM, TE SuperSeal 1.5, Metri-Pack 150 and 280, Weather Pack, Sumitomo 090, and GXL or TXL automotive wire. Send a diagram, old harness, or circuit list and we will turn it into a manufacturable wiring assembly.
Why MiniProto
Professional Harnesses Without The Wait
Serviceable Harness Layouts
Connector choices, branch points, labels, and wire colors are reviewed so the harness can be installed and serviced without guesswork.
Sealed Connector Options
Deutsch, SuperSeal, Metri-Pack, Weather Pack, and Sumitomo families cover exposed motorcycle wiring locations.
One Bike Or Repeat Builds
Build a single cafe racer harness or repeat the same layout across a fleet without minimum order pressure.
Technical Specifications
Motorcycle Connector And Wire Guide
Common connector and wire families for custom motorcycle wiring harness projects.
| Connector | Gauge | Sealing | Typical Use |
|---|---|---|---|
| Deutsch DTM | 18 to 22 AWG | Sealed | Sensors, indicators, controls |
| Deutsch DT | 14 to 20 AWG | Sealed | Lighting, ignition, accessory circuits |
| TE SuperSeal 1.5 | 14 to 20 AWG | Sealed | Compact exposed connections |
| Metri-Pack 150/280 | 12 to 22 AWG | Sealed options | OEM-style automotive circuits |
| Weather Pack | 12 to 20 AWG | Sealed | Resto-mod and service wiring |
| Sumitomo 090 | 16 to 22 AWG | Series dependent | Japanese motorcycle connector matching |
| GXL/TXL Wire | 10 to 22 AWG | Automotive jacket | Main harness branches |
We match connector and wire selection to circuit current, exposure, routing, and available mating parts.
Custom Bike Builds
- Cafe racer and resto-mod rewires
- Battery, ignition, lighting, and switchgear circuits
- Harness labels and branch lengths for installation
Dirt, Adventure, And Fleet
- Sealed connectors for exposed locations
- Accessory and navigation harnesses
- Repeatable small-batch harnesses for fleet bikes
Popular Preconfigured Builds
Start From A Reviewed Configuration
Use these catalog builds as a starting point, or send a drawing when the assembly needs connector, pinout, or routing review.

Custom TE Deutsch DT to TE Deutsch DT Wire Harness Assembly
Configure For Price

Custom TE Deutsch DTM to TE Deutsch DTM Wire Harness Assembly
Configure For Price

Custom TE Deutsch DT to TE Deutsch DTM Wire Harness Assembly
Configure For Price

Custom TE Deutsch DTM to Generic Ring Terminal (Heatshrink) Wire Harness Assembly
Configure For Price
Applications
Built Around Real Installations
Cafe racer and resto-mod rewires
Dirt and adventure motorcycle accessories
Lighting, switchgear, and ignition harnesses
Fleet motorcycle harness replacements
Process
From Requirements To Tested Harnesses
Document Circuits
Send a wiring diagram, old harness photos, connector list, or accessory plan.
Plan Routing
We review connector families, branch lengths, wire gauge, labels, and service loops.
Build And Check
Harnesses are terminated, wrapped or sleeved as specified, labeled, and continuity checked.
Related Links
More Motorcycle Wiring Harnesses Resources
Explore related connector, service, and industry pages before you configure or quote a build.
Turn A Motorcycle Wiring Plan Into A Buildable Harness
Configure a Deutsch starting point or upload your diagram for a custom motorcycle wiring quote.