1. Manuals
  2. Brands
  3. MJM Manuals
  4. Bicycle
  5. RT-20
  6. User manual

MJM RT-20 User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
RT-20
USER'S MANUAL

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the RT-20 and is the answer not in the manual?

Questions and answers

Related Manuals for MJM RT-20

Summary of Contents for MJM RT-20

  • Page 1 RT-20 USER’S MANUAL...
  • Page 2 Thanks for purchasing an MJM WHEELS™ RT-20 fat tire retro electric bike. MJM WHEELS™ is based in CANADA, producing high-quality and unique style electric bike with high-profile components. Open the carton box and take out your RT-20 carefully. The package has following items: FRONT...

  • Page 3: Install Handle Bar

    Install Handle Bar Loosen the bolts to put handle bar in between. Use the reserved 4 bolts to install handle bar as picture shown. Adjust handle bar angle and then tighten the 4 bolts to 20N.M.
  • Page 4 Install Head Light Use reserved bolts and bushing to install head light. Adjust height and angle, then fasten all the bolts. Connect the light power cable.

  • Page 5: Install Front Wheel

    Install Front Wheel Make sure the brake disc is placed in the center of caliper gap and front wheel can rotate freely without any noise. When the brake disc is not in the gap, DO NOT pull brake lever.

  • Page 6: Install Pedals

    Install Pedals Use the pedal marked with an “L” on the left side and the right pedal marked with an “R” on the right side (side with drivetrain gears). The right-side pedal has a right-hand thread (removes counterclockwise, installs clockwise); the left side pedal has a left-hand thread (removes clockwise, installs counterclockwise).
  • Page 7 Insert, Remove or Adjust Saddle Height...
  • Page 9 Charge Battery before Your First Ride *On the charger adapter, the red light stands for charging, while green light stands for charging finished. Make sure to charge your battery to full capacity before first ride.
  • Page 10 Power ON/OFF your battery Beside the charging port, you will find a separate switch to power ON/OFF your battery. Make sure you switch on before your ride, and switch off after ride. It helps protect the battery from draining itself.
  • Page 11 ⚫ If you have been charging your battery for more than 12 hours and it is not yet fully charged, take it off the charger and contact MJM WHEELS™. ⚫ The charger may get warm to the touch, so make sure you charge they are in an open area and do not lay anything on the charger unit while charging ⚫...
  • Page 12 Battery Storage How to store your battery for a extended time? Charge the battery every 3 months to avoid capacity loss. Batteries slowly self-discharge when left unused for a long time. If a battery is allowed to reach a critically low voltage, their lifespan and capacity will be permanently reduced.
  • Page 13 Uninstall & Install Tank Cover The RT-20 battery is placed inside the “tank”. To replace the tank cover, or battery, you need to remove the tank cover by removing 2 bolts on each side. Use 5mm Allen Key. To remove battery, use the same 5mm Allen Key to remove 4 bolts on the battery. You will...

  • Page 14: Head Light Control

    Head Light Control On the handle bar, there is a separate switch for head light. Push the button ⚫ Downside: Low Beam ⚫ Upside: High Beam Don’t forget to switch off the light and battery when you finish riding. This operation helps extend the battery life.
  • Page 15 LCD Brief Manual ⚫ To switch on the eBike system, press power button on handle bar. Repeat to shut off the system. ⚫ After switching on the eBike system, you can press Set button to switch between ECO, STANDARD, and POWER modes ⚫...

  • Page 16: Troubleshooting

    Troubleshooting If there are errors about the electronic control system, the error code will appear automatically. Error Code Definition Solution Current error or MOS damaged Replace controller Disconnect throttle wire (located in controller box, or in front of handle bar if the bike has water Throttle Abnormality proof quick release...
  • Page 17 to replace a motor rotor. Disconnect 2 brake lever wires (located in front of handle bar to see whether the ERROR code Brake Abnormality disappears. If yes, replace the brake lever and reconnect brake lever wire to controller. Fully charge the Under voltage battery Do not block motor...
  • Page 18 As a final check, please go through this checklist to make sure your bike is properly assembled and safe to ride: ■Handlebars Ensure handlebars are straight and secure and all relevant bolts are tight. Test that they are securely attached to the forks by gripping the front wheel between your legs and attempting to turn the handlebars.
  • Page 19 ■Brakes Test front and rear brakes whilst rolling the bike forwards – both wheels should stop completely. Test that there more than a fingers width between the grip and the brake lever when fully depressed. ■Rack Ensure that the rack is secure and that all visible bolts are tight. ■Kickstand Rock the bike gently from side-to-side to ensure that the kickstand does not wobble.

  • Page 20: Before Riding

    Before riding: Adjust the height of the handlebars and saddle to suit the rider, whose toes should be able to just touch the ground. ■Check that all lights and displays are working. ■Check regularly to ensure that the electrical connectors between the bike and battery are clean.
  • Page 21 ■As you cycle, the battery power will be consumed, and the power level indicator lights will indicate this reduced battery life. . ■Use both brakes together when stopping; do not use only one brake. ■Remember when riding in wet or snow conditions your brakes will be less effective and a greater stopping distance is needed.
  • Page 22 If the warranty is void for any reason the customer shall bear any repair or replacement costs MJM WHEELS™ LIMITED WARRANTY resulting from ebike misuse, negligence or abuse. Always follow care and preventive maintenance procedures Always keep receipts from any services performed to the ebike by an authorized distributor or To make a warranty claim you will need a copy of the original receipt showing the ebike service center.
  • Page 23 Always follow care and preventive maintenance procedures Always keep receipts from any services performed to the ebike by an authorized distributor or service center. The warranty will be voided by any of the following circumstances: （1） Failure to follow all directions or recommendations listed in this warranty and user’s manual.
  • Page 24 (14) If ebike has been modified for any purposes on the motor, electrical system, suspension frame, wheels. (15) Use of other components not approved by the manufacturer (16) Damages resulted from improper transportation Due to the nature of the product some components must be purchased exclusively from the manufacturer.

Table of Contents