SRPNT Moto is a Las Vegas-based electric motorcycle brand making the X3, X8, and Z27 — 72V bikes designed for trail and street-legal capable use. The SRPNT occupies a niche between the lightweight trail bikes (Sur-Ron LBX) and the pure race machines (Stark Varg): more capable than the LBX class, more road-friendly than the race-only bikes. If you own one, the electrical system is proprietary and parts source through SRPNT and a small network of dealers.
1. Electrical System
The SRPNT platform runs a 72V electrical architecture. All core electrical components are OEM SRPNT parts — they do not cross-fit with Sur-Ron, Talaria, or Segway.
Battery
The X3 uses a 72V 40Ah battery pack — a large cell for this bike class. Replacement: $2,478.99. Store at 40–60% for long-term storage. Never discharge below 20%.
Charger
72V Stock Charger — $446.99 — use only the OEM charger or a verified compatible replacement with the correct voltage and current profile. Using an undersized charger will work but charge slowly. Using an oversized charger risks battery damage.
Controller
OEM Controller — $433.99 — manages motor output, regenerative braking, and interfaces with the display. Shared across X3, X8, and Z27. The controller is a field-replaceable unit. When diagnosing electrical issues, check the controller's error codes on the display before condemning it.
Display
OEM Display — $204.99 — the rider interface for speed, battery state, riding mode, and error codes. Also available: display wire harness ($43.99) — replace if the connection becomes intermittent (symptoms: display flickering, dropping out over bumps).
Converter
OEM Converter — $49.99 — steps the 72V main bus down to 12V for accessories (lights, display). Converter failure presents as lighting malfunctions with the main drive system still working.
2. Lighting
The SRPNT bikes include a more complete lighting package than most pure off-road e-motos:
- Headlight: $111.99
- Rear Light: $37.99
- Turn Signal Kit (X8, Z27): $432.99
- Key/Ignition Switch: $86.99
- Left Button Switch: $61.99
If you ride the X3 on roads that require signals, the X8/Z27 turn signal kit ($432.99) can be adapted — check with SRPNT's support team for compatibility before purchasing.
3. What X3, X8, and Z27 Share
All three SRPNT models share the same core electrical architecture: same charger, controller, display, display wire, converter, key ignition, left button switch, headlight, and rear light. This simplifies the parts situation — one inventory of electrical spares covers all three bikes.
The X3 has a larger battery (72V 40Ah) than some configurations. The X8 and Z27 include the turn signal kit as standard equipment.
4. Electrical Diagnostics
When troubleshooting an electrical issue on the SRPNT:
- Check the display for error codes first — the display is the diagnostic interface
- Inspect all harness connectors for corrosion or poor seating — SRPNT connectors can loosen over rough terrain
- Check the converter output if lighting issues appear with normal motor function
- Check the display wire harness if display behavior is intermittent (flickering, dropout over bumps)
- Controller replacement is a last resort — confirm the battery and wiring first
Browse the full SRPNT Moto parts catalog on Wired Whips — OEM electrical and body parts for the X3, X8, and Z27.