Brake squeal: clean rotors with 90% isopropyl, then bed pads with ~10 smooth stops from ~15 mph. Replace contaminated pads if noise remains.

<h3 id="quiet-those-brakes">Quiet those brakes</h3><ol><li>Clean both rotors with 90&#xA0;% isopropyl alcohol and a lint&#x2011;free cloth.</li><li>Bed the pads: perform 10 gradual stops from ~15&#xA0;mph without locking the wheel.</li><li>If squeal remains, inspect pads for oil/grease contamination and replace if needed.</li></ol><p>Be careful not to touch the brake rotor with bare hands, as the oils on your fingers can negatively affect the brakes performance.</p><h3 id="related">Related</h3><ul><li><a href="https://arielrider.gorgias.help/en-US/service-intervals-xclass60v">Service intervals.</a></li><li><a href="https://arielrider.gorgias.help/en-US/replace-brake-pads-xclass60v">When to replace pads.</a></li><li><a href="https://arielrider.gorgias.help/en-US/spongy-brake-lever-xclass60v">Spongy lever.</a></li><li><a href="https://arielrider.gorgias.help/en-US/pressure-wash-ok-xclass60v">Pressure wash OK?</a></li><li><a href="https://arielrider.gorgias.help/en-US/tire-pressure-xclass60v">Tire pressure.</a></li><li><a href>Contact us.</a></li></ul>

X‑Class 60V: My brakes are squealing

Spongy lever: inspect for leaks, top up fluid, then bleed with mineral oil; pump the lever to settle micro‑bubbles and restore a firm feel.

<h3 id="firm-it-up">Firming up the brakes</h3><p><span style=" text-decoration: none;" id="isPasted"><span style="font-size: 14px;">Hydraulic bicycle brakes feel spongy when air gets trapped in the brake lines, since air compresses much more easily than brake fluid. Other causes include contaminated or old brake fluid that has absorbed moisture, worn seals that allow air to enter the system, or insufficient fluid in the reservoir. These steps should help you get your brakes working like new.</span>&#xA0;</span></p><ol><li>Check for leaks at caliper and lever.</li><li>Top up fluid if low and bleed with mineral oil (Shimano&#x2011;spec).</li><li>After bleeding, squeeze lever several times to settle bubbles, then recheck.</li></ol><h3 id="related">Related</h3><ul><li><a href="https://arielrider.gorgias.help/en-US/service-intervals-xclass60v">Service intervals.</a></li><li><a href="https://arielrider.gorgias.help/en-US/brake-squeal-xclass60v">Brake squeal.</a></li><li><a href="https://arielrider.gorgias.help/en-US/replace-brake-pads-xclass60v">When to replace pads.</a></li><li><a href="https://arielrider.gorgias.help/en-US/pressure-wash-ok-xclass60v">Pressure wash OK?</a></li><li><a href="https://arielrider.gorgias.help/en-US/tire-pressure-xclass60v">Tire pressure.</a></li><li><a href>Contact us.</a></li></ul>

X‑Class 60V: My brakes have a spongey lever

Brake rub fix: loosen caliper bolts, squeeze the lever to center, then tighten evenly and spin the wheel to confirm clearance.

<h3 id="center-the-caliper">Brake Rub</h3><ul><li>This happens when the caliper needs to be adjusted. What we want to check is the angle of the brake caliper. To check this observe the brake caliper and rotor from directly above. The caliper and the rotor should be parallel. If the caliper is angled against the rotor then the next step will be to adjust the caliper.<h3 id="center-the-caliper">Adjust the Caliper</h3><ol><li>It will be helpful to have someone assist you with this.</li><li>Loosen the two bolts that mount the caliper to the caliper mount, do not remove them.</li><li>Squeeze the brake lever to center the caliper over the rotor.(having a partner do this will help) .</li><li>While holding onto the caliper with one hand tighten down the bolts, if you feel the caliper start to move back the screw out just a 10th of a turn and squeeze the brake lever one more time, then tighten bolts down. Repeat this step until the caliper is secured in place and straight.</li></ol><h3 id="related">Related</h3><ul><li><a href="https://arielrider.gorgias.help/en-US/service-intervals-xclass60v">Service intervals.</a></li><li><a href="https://arielrider.gorgias.help/en-US/brake-squeal-xclass60v">Brake squeal.</a></li><li><a href="https://arielrider.gorgias.help/en-US/replace-brake-pads-xclass60v">When to replace pads.</a></li><li><a href="https://arielrider.gorgias.help/en-US/spongy-brake-lever-xclass60v">Spongy lever.</a></li><li><a href="https://arielrider.gorgias.help/en-US/pressure-wash-ok-xclass60v">Pressure wash OK?</a></li><li><a href>Contact us.</a></li></ul></li></ul>

X‑Class 60V: My brakes rub on the caliper

Replace pads when friction material is <1 mm, you hear a metallic scrape, or stops get longer; re‑bed pads after installation.

<h3 id>Know the signs</h3><ul><li>Pad friction material &lt; 1&#xA0;mm, about the thickness of a dime</li><li>Metallic scraping noise</li><li>Longer stopping distance</li></ul><p>Replace pads immediately if you notice any of these signs. Changing your brake pads regularly is a key safety precaution, be sure to check your brakes before each ride to ensure that your bike is safe to ride!</p><h3 id>Related</h3><ul><li><a href>Service intervals.</a></li><li><a href>Brake squeal.</a></li><li><a href>Spongy lever.</a></li><li><a href>Tire pressure.</a></li><li><a href>Contact us.</a></li></ul><p><br></p>

X‑Class 60V: When should I replace my brake pads?

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

Contact Us

Home Page

Ariel Rider Ebikes

Brake and drivetrain maintenance for the Ariel Rider X‑Class 60V.

Brakes, Drivetrain, and Adjustments

Owners resources & Technical support

X-Class 60V

Troubleshooting for your X-Class 60V

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

What are the current expected shipping times for your bikes?

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

Do you sell any open box bikes locally?

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

What warranty comes with the bike?

What assembly is required for each Ariel Rider model?

Will this Ariel Rider bike fit me? Rider's heights.

What is pedal assist?

Do your bikes require a signature upon delivery?

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

Where are Ariel Rider bikes made?

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

Can I pay extra for a custom paint job?

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

Are your bikes water resistant?

Do you have an Ariel Rider bike for kids?

Can I load my bike to my car?

Can I modify my bike?

Does modifying a bike's paint void the warranty?

What type of valves are used on the tires?

Does Ariel Rider offer trade-in or buyback programs?

Do you have an affiliate program?

How do I apply to be a dealer?

Pre-sale bike 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?

When will your current bike(s) ship?

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?

How do I use my loyalty points

Do you offer a price adjustment if I purchased right before a sale?

Ordering, payments, & discounts FAQs

How long does shipping take?

Do accessories and parts ship with the bikes?

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

Are signatures required for bike deliveries?

Which shipping carriers do you use?

Do you ship to PO Boxes?

Do you ship to Alaska or Hawaii?

Do you ship to my country?

Can you take an Electric Moped Bike on a plane?

Pre-sale shipping & delivery FAQs

Before you buy an Ariel Rider

Can I modify my order or delivery details?

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

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

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

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

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

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?

Returns, changes, & cancellation FAQs

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?

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

What is included in the pre-ride check?

Pre-ride safety checklist

Do motorized bikes require maintenance?

How often should I have my bike serviced?

Routine maintenance

Washing your Ariel Rider motorized bike

Storing your Ariel Rider bike

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

Basic maintenance & pre-ride FAQs

How can I get Technical Support?

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

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

I'm purchasing or purchased a 2nd hand Ariel Rider bike, can I purchase replacement parts?

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

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?

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

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?

How much should I inflate my tires?

My front axle nuts are missing

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 replace brake pads?

My brake pads are closed

How to change rotor

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, & Adjustments

General technical support info

X‑Class 60V: User manual

X‑Class 60V: Off-Road Edition Assembly video

X‑Class 60V: Assembly video

X-Class 60V: Assembly time

X-Class 60V: Display settings

X‑Class 60V: Tire pressure

X-Class 60V: How to adjust your Handle Bars

X‑Class 60V: Dual‑battery option

X‑Class 60V: Can I install a 72V battery?

Getting to know your X-Class 60V

X‑Class 60V: How do I submit a warranty claim

Electrical System and Battery FAQs

Display and Control Settings

Wheels, Motors, Tires, and Spokes

Common Error Codes for Your X-Class 60V

Grizzly: Getting Started

Grizzly V3: User Manual

Grizzly V3: Assembly video

Grizzly (V1 and V2): Assembly video

Grizzly: How to charge the batteries?

Grizzly: What are the dimensions of the Grizzly?

Grizzly: Height fit

Grizzly: What are the dimensions of the Grizzly's handlebars?

Grizzly: Are Grizzly bike handlebars interchangeable with other models?

Grizzly: Can I get the long saddle instead of the short saddle for the Grizzly?

Getting to know your Grizzly 52V

Grizzly 52V