Getting to know your M-Class

M-Class Troubleshooting and Technical Information

Contact us
Sales/Tech Support Hours: Mon-Friday 9am-5pm PST

Contact Us

Home Page

Ariel Rider Ebikes

M-Class

Owners resources & technical support

Discontinued Models

Do you offer test rides? Do you have any local dealers?

Can I modify my bike?

What assembly is required for each Ariel Rider model?

Will this Ariel Rider bike fit me?

Do you have an Ariel Rider bike for kids?

Can I pay extra for a custom paint job?

Does modifying a bike's paint void the warranty?

Where are Ariel Rider bikes made?

What warranty comes with the bike?

How long do I have to register the warranty after I receive the bike?

Can you recommend a child seat that is compatible with your fat tire bikes?

Can I pick up my bike(s) locally instead of via shipping?

What is your return policy if I decide the bike isn’t a good fit for me?

Do you want to talk to a real person to learn more about our bikes before making a purchase?

Do you have an affiliate program?

Are your bikes water resistant?

What is pedal assist?

Can I load my bike to my car?

Purchased a 2nd hand Ariel Rider bike, can I purchase replacement parts?

Do you sell any open box bikes locally?

Do you have any open box sales? If so, how do they work?

How do I apply to be a dealer?

Do your bikes work in cold weather, rain, or on hills?

What type of valves are used on the tires?

Does the warranty transfer when I sell my bike while it's still under warranty?

When will your current bike(s) ship?

Can I install parts from one model on another?

Bike security: Protecting your Ariel Rider bike from loss or theft

Does Ariel Rider offer trade-in or buyback programs?

General bike & product FAQs

Do you want to talk to a real person to learn more about our bikes before making a purchase with Ariel Rider?

What payment methods do you accept?

Do you accept PayPal?

Do you offer financing? How does it work and what are my options?

Do you charge sales tax?

Do you charge shipping costs?

Do you have sales or offer discounts?

Can you declare a lower value on my package?

Can I place an order for an item that’s in stock, but request to hold it for a future date?

Can I pre-order accessories or parts that are out of stock?

For pre-order/back-ordered items, do you charge right away or wait until the item is shipped?

What does pre-order mean?

I placed an order that didn’t complete but I have a pending charge? Why was it canceled?

My order was automatically canceled right after it was placed, why was it canceled?

How do pre-orders work for bikes?

When will the Grizzly, Kepler, or X52 models be restocked again and available to purchase?

Can orders be delivered to a UPS or FedEx store?

How do I get notified when an out-of-stock item becomes available?

Do new batteries come with chargers?

How can I get an invoice for my purchase?

How do I buy a part that's not listed on the website?

Placing a bike order, payments, & discounts

Do you cover shipping costs?

Are signatures required for bike deliveries?

Do you ship to PO Boxes?

Do you ship to Alaska or Hawaii?

Do you ship to my country?

Which shipping carriers do you use?

Can you take an Electric Moped Bike on a plane?

Do I get tracking when my item(s) ship?

How long does shipping take?

Do accessories and parts ship with the bikes?

Shipping & delivery policies/FAQS

Before you buy an Ariel Rider

Can I modify my order or delivery details?

Can I modify my existing unshipped order to add more items?

Can I modify my order once I’ve received a tracking number via email?

Can I cancel my order and will there be a fee involved?

How can I request cancellation for my order?

How do I return a part or accessory?

How long does it take to receive a refund?

What should I do if my tracking number hasn’t updated?

What should I do if I can't find my tracking number?

Returns, order modifications, & cancellation policies

What should I do if an item is missing from my package or order?

What should I do if my bike or accessory was damaged during shipping?

I cannot find my keys? (My bike was just delivered)

Do I need to adjust anything on my bike when it arrives?

How do I register for warranty?

What is included in the pre-ride check?

Pre-Ride Safety checklist

Do motorized bikes require maintenance?

How often should I have the bike serviced?

Can you recommend a shop for bike maintenance?

Routine maintenance

Washing your Ariel Rider motorized bike

Storing your Ariel Rider bike

Basic maintenance & pre-ride FAQS (After you receive your bike)

How can I get Technical Support?

What should I do if I need assistance with product assembly or technical issues?

What can I do if my e-bike shuts down while riding?

Getting technical support

How do I order a replacement part that is not listed on your website?

How do I use my loyalty points

What should I do if my bike was stolen?

How do I turn on the headlights?

How do I access the display settings?

How can I order a replacement display for my bike?

How can I reset the PIN number on my display if I've forgotten it?

What should I do if the display screen on my e-bike is not functioning properly?

Should I reset to factory settings in the display?

Should I use dielectric grease in display connectors?

What is error code 30?

Display & control settings

What battery cells do you use?

Proper battery maintenance

Can I have my battery checked out by a local battery tech? (I need help with my battery)

Which battery is compatible with my bike?

Can I charge my battery in the EU/Asia/etc?

Can I replace my bike's battery if it gets damaged due to rain?

Can I run my bike without the battery detection module?

What should I do if my key is not working to unlock the battery?

Battery lock not working

What should I do if my battery lock mechanism fails and the key cannot be removed from the lock?

Battery return instructions for Ariel Rider (For inspection after receiving battery kit)

How do I inspect my cables and connections for damage?

What are the basic steps to change my Main wire harness?

How to Power Cycle, DCE, your bike

Can I reprogram my controller?

Can I convert my 48-Volt bike to a 52-Volt bike?

Electrical System & Battery FAQS

I need new tires, what should I get an where can I get them?

I've recently had a flat tire, is it covered under warranty?

My tire has slipped out of the rim

Clicking noise coming from my wheels

What spokes should I use? Where can I get them?

My spokes are loose, what should I do?

What size nut do I need for my axles?

How can I order a safety washer for my bike?

What can I do about missing axle nuts for my bike?

What options are available if a brand new motor's screw is stripped?

What steps can I take if my rear wheel is bent and needs replacement?

How can I purchase a new wheel for my Ariel Rider  bike?

Do you sell replacement cables for a rear hub motor?

Can I send a broken motor back for assessment?

Motor core return instructions for Ariel Rider

How to install/replace a rear motor core

How do I remove the rear wheel?

What could cause an issue with loss of drive power to the rear wheel?

Is it necessary to grease the 1000W hub motor, and how is it done?

How do I know when it's time to change my tires?

My front axle nuts are missing

How much should I inflate my tires?

What should I do if the forks on my e-bike are sticking?

Wheels, Motors, Tires, & Spokes

When do I change my brake pads, and what pads do I use?

How to change rotor

How to replace brake pads?

My brake pads are closed

How do I bed the brakes on my Ariel Rider bike?

How do I adjust my brake levers?

My brakes feel soft or spongey, what should I do?

My brakes are squeaky, what should I do?

What actions can be taken if brakes slip during wet weather?

How do I adjust my Motor Cut Off Sensors? (!)

How to adjust the rear derailleur on your Ariel Rider bike

Brakes, Drivetrain, & Mechanical Adjustments

General technical support

X-Class Manuals (prior to 2025)

X-Class 52V Assembly video

How to remove the battery on X-Class 52V

Adjusting X-Class 52V handlebars

How to change X-Class tires

X-Class 52V Display installation

X-Class 52V Dimensions

What is the nm torque for X-Class 52V?

What is the weight capacity for X-Class 52V?

Can you move the handlebars up on X-Class?

Is there a lock on the battery on X-Class?

Is there a walking mode?

Is the battery on X-Class removable?

Are the tires on X-Class puncture resistant?

How fast can the X-Class go?

Which side is the throttle on?

Are the newer headlights and tail light compatible with the older X-Class versions?