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RadRhino Support and Best Practices

Please take the time to closely familiarize yourself with the RadRhino Owner’s Manual, instructional videos, and the following best practices to help you get the most enjoyment from your new ebike. Do not operate your new RadRhino without completely reading and understanding the owner’s manual and best practices. Contact Rad Power Bikes for more information on support or with tech support questions.

View the RadRhino Owner's manual in the following languages:


For assembly instructions please refer to this instructional video and study the owner’s manual. Assembly and initial adjustment may require special tools and skills to assemble and fit the bike to rider. It is recommended that this be completed by a trained bicycle mechanic. The RadRhino arrives nearly fully assembled however the pedals, seat post, front headlight and front wheel need to be installed before the bike is tuned and fitted to the user.

Pre-Ride Checklist

  1. Pre-Ride Checklist

    1. Ensure all fasteners are secure and torqued correctly based on the instructions in the owner’s manual. Look for anything that appears unusual or missing.
    2. Ensure your battery is fully charged
    3. Check to see that all electrical connectors that are externally visible are securely connected.
    4. Check the tire pressure with an air pressure gauge and inspect tires for damage. Make sure tires are properly inflated.
    5. Ensure the throttle is not applied or bound before turning on the bike.
    6. Ensure battery pack is in the locked position with the key switch lock.
    7. Locate seat at a comfortable and safe height so that you can put a foot down to stop safely.
    8. Test the E-Brakes for proper function.
      1. Sit on the bike in a clear open area.
      2. Engage the front brake.
      3. Lightly apply the throttle. The bike should not move since the brake is applied and e-brake cutoff switch is then engaged.
      4. Release the throttle
      5. Release the brake.
      6. Test that the bike will now operate with the brake not engaged.
      7. Release the throttle
      8. Apply the rear brake and perform the same steps above 3-7.

    If the brakes do not cut off the power immediately discontinue use and contact Rad Power Bikes. If any other items in the above checklist are out of order immediately discontinue use until the item is serviced.

Battery Care and Charging

The RadRhino battery should be recharged after each and every use. The charger automatically stops when charging is complete. You can check the level of charge using the LCD display battery meter or the small LED meter on the side of the battery pack closest to the charging port.

Tail Light Wiring

Red: + VCC

Black: - VCC

Yellow: + Brake

Green: - Brake

Pedal Assist

When riding with pedal assist active, you should always start in pedal assist “Level 1”. Be sure you are in a  clear area with no obstacles before starting off with the pedal assist system. Once you begin pedaling, the pedal sensor will activate the motor after 1-2 seconds. If there are any obstacles in your path you could collide with them if you are not anticipating the power of the pedal assist system to provide propulsion. Ensure you are firmly mounted on the bike and ready to ride with power assist before starting to pedal. 

When you stop pedaling, there is a 1-2 second delay before pedal assist shuts off. This is to reduce the pedal assist power surging on and off whenever you stop pedaling momentarily, usually to adjust your foot on the pedals or your seating position. If you need to stop suddenly when using pedal assistance, apply the brake levers to cut the power off and slow the bike. Always be prepared for the pedal assist power to remain active for a few seconds after you stop pedaling, and use the brake levers whenever you require the pedal assist or throttle power to be stopped immediately. 

Headlight/Display Backlight

The headlight on the RadRhino will remain on as long as the bike is powered on. Riding a bicycle at night is much more dangerous than riding during the day. Check reflectors/lighting equipment and their mounting hardware regularly to make sure they are clean, straight, functional and secure. If you choose to ride in poor visibility conditions, first check to ensure you comply with all local laws regarding night riding. 

LCD Display Features and Operations 

Riding Off-Road and In Wet Weather

We do not recommend riding the bike in conditions that exceed your or the bike’s ability. Riding in extreme terrain is not recommended and in some cases can void your warranty. You should never exceed 500 watts of power in loose off-road terrain otherwise you risk damaging the hub motor from overheating or overloading to the electronic system. Wet weather impairs traction and visibility for the cyclist and vehicles sharing the road. The stopping power of the brakes, traction of tires and grip of the rider's feet on the pedals are all lessened in wet weather. If your feet slip off the pedals, tires lose traction, or the brakes cannot stop you appropriately it could lead to a fall.

Riding in Hilly Terrain

In hilly terrain, it is recommended that users always pedal to assist the bike in climbing up hills. On steep hills, you should never exceed 500 watts of power. This can be accomplished by setting the pedal assist level to “Level 1” or "Level 2" or by riding with the twist throttle only partially applied. While regulating the throttle, watch the watt meter on the display and ensure that you regulate the power output of the motor so that it stays below 500 watts on steep hills. Never ride up hills which exceed a 15 percent (%) slope with the motor fully engaged. If you want to ride up hills steeper than 15% slope, first set the pedal assist level to “level 0, level 1, or level 2” to avoid exceeding 500W of power to the motor.

Steep Hills and Hub Motors

The RadRhino uses a high torque brushless hub motor with an internal planetary gear system which provides efficient performance in many types of riding conditions. Hub motors are designed to provide years of trouble-free use. However, if not taken care of, they can be damaged by overloading. Be sure to pedal with your RadRhino when climbing steep hills and ensure the wattage/power consumption is kept below 500 watts.

Wheels and Tires

There are some important best practices to follow to ensure long life and safe operation of your fat bike wheels and tires. Electric bikes travel at higher speeds on average compared to regular pedal-only bikes, and they are also heavier in comparison; because of this, users must take care to never abuse the RadRhino wheelset.

  • Avoid traveling over terrain which can damage the tires or wheels.
  • Ensure tire pressure is adequate to avoid pinch flats and damage from low pressure.
  • Check tire pressure regularly to ensure proper tire pressure (Rad Power Bikes recommends 20 PSI for the RadRhino) before riding.

Using the Brakes

Check disk brake pads regularly and ensure they are properly adjusted and are not worn out. Always ensure both front and rear brakes are operating properly before riding, never ride with a single brake. Always apply both brakes evenly when slowing.

Maximum Payload for RadRhino

The total maximum weight limit of the RadRhino (125 kg) includes the weight of the rider. The kickstand is not designed to be used for loading cargo.  

Total payload: 125 kg

Carrying Children, Other Passengers, and Gear 

The use of certified and approved child seating and equipment are required whenever carrying children.  Follow the stated weight limits in the section above, do not overload the RadRhino. The RadRhino should never be operated by persons under the age of 16 years old.


  • Cleaning: Pressure washers or hosing down of the RadRhino voids the warranty. The RadRhino should only be cleaned with a moist rag and non-corrosive biodegradable cleaners.
  • Yearly maintenance checks: your RadRhino should be given a full tune-up by a professional bicycle mechanic on a yearly basis.
  • Brake pads: Electric bikes travel at higher speeds and have more momentum because of the weight of the powered components, for this reason brake pads normally wear down faster than a traditional non-powered bike. Users must check brake pads regularly and replace whenever worn.
  • Tire Pressure: Rad Power Bikes recommends 20 PSI for the RadRhino.

Getting Help

This best practices guide is not intended as a comprehensive use, service/repair, or maintenance manual. Please visit your local bicycle repair shops for all service, repairs or maintenance. Certified local bike shops may also be able to refer you to classes, clinics, or literature on bicycling, service/repair or maintenance. Please also reach out to Rad Power Bikes at any time with any questions that arise from your purchase and use of this product.

Staying Updated

Be sure to regularly check the official Rad Power Bikes website to ensure you have the most updated owner’s manual and instructional materials. The latest version of the manual can be found on this page and is available for immediate download.