How can we help?


Which carbon fiber do you use on your carbon rims & wheels?

We use full carbon Toray T700 & T800 carbon fiber.

What is the difference among Tubular, Clincher and Tubeless?


A tubular – or tub – is a tire with an inner tube stitched inside. The tubular is glued to a specially designed rim, or sometimes stuck there with double-sided tape. If you puncture a tubular, you can often repair it with a Latex-based liquid sealant. Otherwise, you have to take the tubular off the rim, open up the backing, patch the tube, sew it up and stick it back on. It’s a faff, to be blunt.


Clinchers tires are what the vast majority of us use these days: tyres with beads around the edge that hook into the rim of a clincher wheel, with entirely separate inner tubes that you can repair or replace if you puncture.


Tubeless tires are a style of tire which interfaces directly with a special type of bike rim – a tubeless rim – to create a seal, and no inner tube is required. There is a liquid sealant which is used to create a strong juncture between the tubeless tire and the rim.

What is the difference between an asymmetrical and symmetrical rim?

Asymmetrical rims

are designed and drilled to compensate for the offset design of most hubs. The asymmetry of the rim allows the spokes to equalize in tension between the drive and non-drive sides of the wheel. The result is in more even spoke lengths and a stronger wheel build which requires less truing than a traditional rim.

Symmetrical rims

utilize standard drilling practices and do not compensate for the offset hub design. The result is a wheel build that may not be as strong as an asymmetrical build, but comes as a more cost effective option.

When to change your brake pads?

Your rim brake pads need maintenance as well as your wheels.

When the cuts are full with dirt you need to open de cuts again, so they can drain the dirt again. When the cuts are worn you need the pads to be replaced with new ones.

For Full Carbon rim brake wheels we recommend Swissstop Black Prince.

For Alu rim brake or disc brake we recommend the pads provided by the brand of the group-set on your bicycle.

How long do brake pads last?

Rim brake:

When the cuts in the pads are worn then you should replace the pads. Don’t let the pads wear too much, it will ruin your rims in short time.

Disc Brake:

When the disc brake pads in your bike start to make noise you should check the wear. Worn out pads can damage your disc brake rotors.

How to clean my brake surface?

If you want to clean your carbon or alloy brake surface without harming the material of the rim or influence the braking performance we recommend to clean your rims with Acetone. It is recommended to clean every once in a while when you are riding with rim brake.when you are riding disc brakes its of course not necessary.

Is your road disc brake wheel come with braking track or not?

Our road disc brake wheels are built without braking track, but if you need the rims to be with brake track, please contact us to customize your order.

Can spokes and nipples be purchased separately?

Sure! Please let us know which nipples you’re looking for. For spokes, we’d need to understand the length or wheel build specifics, and type of spoke you require so that we can ensure we have them in stock.

What is the weight difference between brass and alloy nipples?

The weight difference is about 50g for a 32h wheelset.

Brass: 1.09g/pcs

Alloy: 0.36g/pcs

How can I check if my wheels are straight?

With rim brake, when your wheel is in your bike you can check the straightness when you carefully look beside your brake-pads and spin your wheel, you will see if your wheel wobbles. If it does it needs to be checked.

When you have disc wheels, and you see your wheel wobbling please let your local bike shop check your aligment asap.

Please note that a wobbling wheel can also be caused by the tire which is not fitted correctly or has a faulty section. Therefore it’s needed to look at any movement on the rim and not the tire.

How to remove glue from my tubular wheels?

You can use a solvent like benzene (white spirit) to get the glue off. But if there’s not too glue left on the rim much then you can glue the new tire on top of the ‘old’ glue. This will soften up when it comes in contact with the new glue.

NEVER use a sharp or hard tool to scrape off the glue. You could damage the carbon rim and endanger the structural integrity.

What is the max tire pressure for wheels?

For road rims: max 125psi for clincher, max 180psi for tubular, max 90psi for tubeless

For 20″ rims: max 125psi

For MTB rims: max 65psi

May I know the spoke tension on your wheels?

Front Wheel: 110-120kgf

Rear Wheel: Non Drive Side : 90-100kgf , Drive Side:140kgf

How can I get the spoke length for external hole rim or internal hole rims?

For external nipple builds (standard), you can use the ERD listed on the rim pages on our website. *Standard nipple heads only. If you are using nipples with a raised head like DT Squorx or Sapim/DT double square or hex nipples then you need to add 2mm to the ERD. As with ANY wheel build, the most accurate way to get the ERD is to measure it on your specific rims because the ERD can vary.

For internal nipple builds, generally speaking you’d need to add 8mm to the ERD.

Please contact us if you want us to calculate the spoke length, here is what we’d need to know:

  • Internal hole rim or external hole rim
  • Hub manufacturer name and model
  • Hole counts
  • Front and rear axle width
  • Straight pull or J-bend
  • Spoke lacing preference (2-cross? 3-cross?)
  • Nipple preference (If you are using nipples with larger heads double square, Squorx or Hex etc. then we will need to know as longer spokes are required!).
Do you offer custom rim mold(OEM)?

Huami Carbon is a professional manufacturer of carbon rims and is dedicated to continuous improvement. We are able to assist you with development of your OE product as well as quality testing and manufacture, and offer competitive OEM prices. We pride ourselves on our honesty, quality and integrity. And the long lasting relationships we hold with our current clientele around the globe is testament to this.

Mold cost: by quote, please contact us at: [email protected]

How can I get the custom decal and how much does it cost?

For the custom decals, please email us a picture or describe what you would like. Generally speaking, it is USD55~$100 for graphic cost one color or two color graphic. It depends on decal size and color.

Can I get a custom spoke count? Custom angled hole?

We are able to custom drill any spoke count, and some rims can have a custom spoke angle. Please contact us, and we can consult our engineers on availability. But it has MOQ.

Can I send my hubs over for custom building?

Yes! Please email us before sending the hubs so we can create a purchase order and provide you with the appropriate instructions for shipping and payment.

Shipping methods

EMS/DPD/DHL/TNT/UPS/FEDEX Etc. Via air transport normally need about 5-15 days(depends on which way you choose.)

What is your delivery time?

In stock : 1-3 days.

Samples or with 10 pcs :7-15 days.

Bulk order :20-45 days(Depends on QTY)


Foam lining + 5 layer thick carton

There is no status update for some days, is it normal?

For EMS does not update tracking info. Everyday. Normally they will update it when the parcel reaches a new sorting center.

When choosing the DPD shipping, the products have shipping to our overseas warehouse first. Then ship from our overseas warehouse country to your side. So it does not have track information in time.

So please be a little patient. The package is on the way to you.

What can I do if I receive a damaged parcel?

Check the product carefully before signing!

If you receive a product with damaged packaging, inspect the items carefully for damage. If there is no damage, sign for the product. If there is damage, report this on the delivery slip or, alternatively, refuse the shipment and it will return to Huami Carbon. If a claim is made against the shipping company, they will provide a compensation number. Please inform us of this number for delivery tracking. Arrangements for reshipment will be made within 10 business days upon receiving the returned package.

If the items are damaged but accepted and not reported, there is no recourse against the delivery company and you are responsible for purchasing any replacement product.

If the package is in good condition, but the product is significantly damaged during shipment, please keep the waybill, packaging, etc. and contact us within 7 days after the delivery.

Import and Customs fees are high for my country. Is there a way to avoid this?

When buying direct from China we found the best way was to use DPD delivery(pre-paid duty) for our European customers. This way there are no charges upon receiving the product.

For customers outside the EU, all the taxes and custom duties are borne by themselves. Normally, we will make lower invoice value to help customers for your to save/avoid tax. If you have any specific requirements, please contact us via emails [email protected]. We will try our best to help solve your problems.

How much taxes should I pay?

Actually the taxes amount percentage varies for different countries. So you can find some information about it locally.

What payment method do you accept?

We accept PayPal, Bank Transfer and Western Union etc.

Do you accept master card/credit card?

Yes, you can choose PayPal payment and using your Master Card/Credit Card.

What is your warranty?

We have 2-3 years warranty service including:

Product packaging breakage

Product you received and description do not match

Product collisions

Accessory parts loss

What guarantee will I get?

All the products on our website come with a return and money back guarantee. If you are not satisfied with the products you receive or the products do not conform the description, please contact us to discuss a solution. We take the customer satisfaction seriously and will solve the problem as soon as possible.

Can I change or cancel my order?

Our “Purchase Alternation or Cancellation Policy” applies when you cancel all or part of a purchase after the payment is partially or fully made, but BEFORE the shipment of products. If you cancel a purchase once it has shipped, it will be treated as a “return” with all applicable fees.

I don't receive any reply after leaving comments/messaging you/making an order online. What’s the problem?

Typically we will answer your inquiries or follow up on your new order via email in 24 hours (except the holidays). If you haven’t received any reply from us, it could be possible that you have mistyped your email address or you’ve given us more than one email address and we’ve sent to one of the less used or our emails go to spam or your email storage is full.

Please try

  • correcting the wrong address by getting in touch with us via webchat (click the messaging button at the bottom-right corner of our pages);
  • checking the inbox of other email addresses and confirming with us which one you’d prefer to receive our emails;
  • checking the spam folder and reset the filtering if necessary;
  • deleting some old messages until it is below the email quota.

If you fail to contact us via online communication tools, feel free to call us at +86-15260649590

Still have a question?

Please contact us for more information.

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