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User Guide

OKAI ESM4 - Assembly & User Guide

Complete guide for OKAI ESM4: initial setup, key functions, routine care, and common troubleshooting.

View product pageBack to knowledge base
Difficulty: Basic-IntermediateTime: 20-35 minutes

Quick start checklist

  • Inspect frame, wheels, and control surfaces.
  • Charge battery fully before first route.
  • Check brakes and tires before each ride.
  • Use lights and protective gear in urban routes.
  • Contact support if any abnormal noise or error appears.

Short video clip included. If you need a model-specific walkthrough, contact support and include your product name.

Before you start

Tools required

  • Included Allen keys
  • Torque wrench (optional, recommended)
  • Clean cloth for visual inspection

Safety tips

  • Charge the battery to 100% before first use.
  • Do not test throttle/assist unless fully controlled.
  • Confirm folding or mounting system is fully locked.

In the box

  • OKAI ESM4
  • Mounting hardware and required fittings
  • Official charger (if product applies)
  • User manual and NFC key/setup card (if applicable)

Step-by-step assembly guide

Follow this order to avoid double adjustments and keep the product aligned from the start.

  1. 1) Unbox and verify components

    Remove protective packaging, verify kit parts, and confirm OKAI ESM4 has no shipping damage.

    Media: Unboxing / prep video00:08-00:20

  2. 2) Raise stem and lock folding latch

    Raise the stem to upright position and close the lock latch. It should feel firm with no side play.

    Media: Official manual (assembly step)

  3. 3) Install the handlebar

    Align handlebar with front wheel direction. Insert and tighten bolts in a cross pattern to keep center alignment.

    Media: Product technical sheet

  4. 4) Initial charge and activation

    Plug official charger until full. Power on the system and validate lock/controls before first ride.

    Media: Official product video00:24-00:40

Key functions for daily use

Quick actions you should master before riding in traffic.

  1. Power-on and secure access

    Use key/NFC/app by model for unlock. Always check battery status before departure.

    Media: Official OKAI support

  2. Performance by route

    Adjust ride mode by your route. Model references: range Max range: 50 km (tested at 25 km/h), top speed Max speed: 55 km/h, power 1600W peak.

  3. Control and braking

    Use progressive, anticipatory braking. Check brake lever feel and stopping response weekly.

    Media: Official model page

Maintenance & troubleshooting

Downloads & official resources

manual

Official OKAI ESM4 manual (PDF)

Open resource

support

OKAI manuals library

Open resource

support

Official OKAI support hub

Open resource