⚡ ElectrifyAsia OSHW v2.4 Released: Free KiCad Schematics, STEP Files & LFP BMS Specifications under CERN-OHW-S v2 license.
ElectrifyAsia OSHW
Download CAD/BOM
100% OPEN SOURCE HARDWARE • CERN-OHW-S v2 LICENSED

Democratizing EV Conversions.
Open Source Hardware Kits.

Free open-spec CAD blueprints, modular 3D-printable adapters, KiCad PCB schematics, and step-by-step assembly manuals to convert legacy motorcycles into zero-emission electric vehicles across Asia.

Access Open Repos BOM Simulator
100%
Open Source Specs
$220
Starting DIY BOM
14+
Motorbike Blueprints

Open Repository Status

v2.4-main • Updated 2h ago

CERN-OHW
motor_adapters_v2.fcstd
FreeCAD 3D Mount Brackets (Honda/Yamaha)
.STEP
open_vesc_controller.kicad_pcb
Dual-FET Drivetrain Board (KiCad 8.0)
.GERBER
lfp_bms_enclosure_3D.stl
Modular 48V/60V PETG Battery Casing
.STL
firmware_can_dash.ino
Arduino ESP32 OLED Telemetry Code
.CPP

Join 240+ global hardware contributors. Submit pull requests for CAD adapters for new motorbike chassis models in your city.

Hardware Ecosystem

Modular, Open Source & 100% DIY Repairable

Every PCB, 3D bracket, and wiring harness is designed in open-source EDA tools (KiCad, FreeCAD) using widely available components from Asian electronics hubs.

Open Controller PCB

Open-VESC compatible dual-MOSFET motor controller schematics. Full KiCad source files, Gerber PCB production zips, and CAN-bus telemetry integration.

KiCad 8.0 EDA

Parametric CAD Mounts

Drop-in engine replacement brackets for Honda Cub, Wave, Beat, Yamaha Mio & Vespa. 3D-printable in PETG/CF-Nylon or laser-cut in CNC aluminum.

FreeCAD / STEP

Open LFP Smart BMS

Cobalt-free LFP cell arrangement schematics, active cell balancing PCB specs, and open Bluetooth BLE telemetry app code for mobile diagnostics.

48V / 60V / 72V

Wiring & Dash Code

Standardized waterproof wiring harness diagrams, hall-throttle pinouts, and custom ESP32/Arduino code for handlebar OLED digital displays.

Arduino / C++
Community Blueprints

Featured Open Conversion Blueprints

Download complete production packages—including CAD assemblies, Gerber files, schematics, and CSV bill of materials—for Asia's most popular motorcycle models.

KIT-01 • UNDERBONE 1.2k Forks

Wave-E / Supra-E Open Kit

Compatible with: Honda Wave, Supra X, Revo, Suzuki Smash (110-125cc)

Our flagship underbone blueprint featuring a drop-in rear hub motor mount and under-seat LFP battery box. Requires zero chassis welding or permanent modifications.

MOTOR 48V 2.0kW
BATTERY 1.5 kWh LFP
RANGE 70 km
.FCStd .KiCad .STEP
Download Files
KIT-02 • AUTOMATIC SCOOTER 940 Forks

Mio-E / Beat-E Open Kit

Compatible with: Honda Beat, Yamaha Mio, Click, Vario (110-125cc CVT)

Designed for automatic scooters. Replaces the CVT engine assembly with a direct hub drive or swingarm-mounted motor bracket, making urban commuting virtually silent.

MOTOR 60V 3.0kW
BATTERY 2.0 kWh LFP
RANGE 90 km
.STEP .GERBER .CSV
Download Files
KIT-03 • RETRO CLASSIC 1.5k Forks

Cub-E Legacy Kit

Compatible with: Honda C70, C90, Astrea Grand, Super Cub

Breathe new life into vintage classic steel frames. Features a hidden battery box inside the center frame tube and a high-torque 48V hub wheel.

MOTOR 48V 1.5kW
BATTERY 1.2 kWh LFP
RANGE 60 km
.STL .FCStd .SVG
Download Files
KIT-04 • VINTAGE VESPA 820 Forks

Vespa-E Modular Kit

Compatible with: Classic Vespa PX, Sprint, Super, Special

Laser-cut 6061 aluminum swingarm bracket designed for classic monocoque steel Vespas. Keeps original brake linkages intact.

MOTOR 72V 4.0kW
BATTERY 2.4 kWh LFP
RANGE 110 km
.DXF .STEP .CPP
Download Files
Interactive Calculator

Bill of Materials (BOM) & Cost Simulator

Select your target motorcycle chassis, preferred sourcing method, and battery capacity to calculate total component costs, fabrication time, and carbon savings.

65 km
30 km (Light Commute) 80 km (Standard) 130 km (Long Range)
40 km/day
10 km 50 km 100 km
Gasoline Offset Price: Rp 12,500 / Liter
EV Power Cost: Rp 1,444 / kWh

SIMULATED OPEN BOM COST CERN-OHW

Total Estimated BOM Cost Rp 4,850,000

Component parts + 3D print material overhead

Estimated Assembly Time 4.5 Hours

Standard DIY tools + soldering iron required

Annual Climate Offset 760 kg

Equivalent to planting 35 mature trees per year

Open License Guarantee 100% Non-Proprietary

No locked firmware, no subscription software, and no vendor lock-in. Replace or upgrade cells anytime using standard 32700/18650 LFP battery holders.

Download Complete CSV Bill of Materials

Why Open Hardware Matters

Proprietary vs. Open Source EV

Comparing closed commercial EV scooters to our open-source, user-repairable hardware platform.

Closed Commercial EV

Proprietary Commercial Scooters

Standard commercial electric scooters lock owners out with encrypted BMS protocols, glued battery packs, and anti-repair firmware.

  • DRM Locked Batteries: Encrypted BMS protocols prevent battery cell upgrades or local repair.
  • Potted Controllers: Resin-filled motor controllers make component diagnostics impossible.
  • Vendor Lock-in Servicing: High repair costs at authorized dealerships; independent garages rejected.
  • Planned Obsolescence: E-waste increases when manufacturers discontinue software update support.
Commercial EVs force users into total dependence on single-source corporate supply chains.
ElectrifyAsia OSHW

Open Source Hardware Project

Every schematic, Gerber file, 3D STEP bracket, and C++ firmware line is completely free, user-repairable, and community-audited.

  • 100% Open KiCad Schematics: Audit, modify, or manufacture your own motor controller PCBs locally.
  • Modular LFP Cell Holders: Standard 32700 / 18650 LFP cells can be swapped individually with simple tools.
  • Local Mechanics Empowered: Neighborhood garages can print brackets and repair electronics independently.
  • Zero Vendor Lock-In: Forever maintained by an open global community under CERN-OHW license.
Empowers decentralized local manufacturing and circular green technology jobs across Asia.

Conversion Workflow

How To Build Your Kit

From downloading CAD files to flashing open firmware, converting your motorbike is transparent and fully documented.

01

Clone & Pick Chassis

Download the CAD blueprint repository matching your motorcycle model (Honda Wave, Mio, Cub, Vespa, etc.).

02

Fabricate & Source BOM

Print 3D motor brackets in PETG/CF-Nylon or CNC laser cut aluminum plates. Order raw BOM parts using our CSV checklist.

03

Assemble & Flash Code

Mount the hub motor bracket, connect the open BMS harness, and flash OpenVESC firmware via USB/Bluetooth.

04

Ride & Share Mods

Enjoy quiet, carbon-free commuting. Submit a pull request on GitHub with your CAD improvements for the community!

Maker Hubs & Fabrication Alliance

We collaborate with FabLabs, University Engineering Departments, Hackerspaces, and Independent Garages across Asia to host assembly workshops and local hardware printing stations.

Local Fabrication Hubs

Access 3D printers and CNC plasma cutters at affiliated FabLabs in Jakarta, HCMC, Bangkok, and Manila.

Verified Component Testing

Community-tested battery cell suppliers & verified MOSFET vendors listed on our GitHub wiki.

Peer Code & CAD Audits

Submit new motorbike frame brackets for structural stress simulation (FEA) by community engineers.

Contribute Blueprints Host a Maker Workshop

Join the Open Hardware Movement

Build, modify, and share free EV retrofit technology. Accelerate clean transit without corporate gatekeepers.

Star Repositories Get Conversion CADs
CERN Open Hardware License v2 • Licensed Under CC BY-SA 4.0