Against stones and grit

challenge any harsh conditions 
with our carbon fiber 
MTB rims

Get A Quote
lp mtbrims ushape
U Shape Mountain Bike Rim
lp mtbrims asymmetric
Asymmetric Mountain Bike Rim
lp mtbrims waveshape
Wave Shape Mountain Bike Rim
FOR EVERYONE, FOR EVERY TEAM, FOR EVERY STORE, FOR EVERY BRAND.

Browse our range of mountain bike rims

We provide most of the public mold wheel inventory, 
while you can customize the exclusive mold and paint coating.
27mmt01
30mmt02t14
30mmt02t14
32mmt44
Model No.
CBRT01
CBRT02
CBRT14
CBRT44
Size
29ER
29ER
27ER
29ER
Type
Asymmetric 2.6mm
Asymmetric 2.6mm
Asymmetric 2.6mm
Asymmetric 3mm
specification
Hookless
Hookless
Hookless
Hookless
Width
27mm
30mm
30mm
30mm
inner Width
22mm
24mm
24mm
26mm
Functional
XC
XC/AM
XC/AM
XC/AM
ERD
593
591
553
602
weight
(+/-15g)
280/340

320/365/385

300/340/360

320/360

NEW ARRIVAL - 29" Asymmetric Wave Shape MTB Rims

The overall depth alternates between 18.5mm to 21.5mm, creating a ribbed inner circumference. The unique combination of a stepped sidewall and shapely rim bed gives the carbon rim extra vertical compliance.

37mmt57 2
33.5mmt18t24
33.5mmt18t24
37mmt43
37mmt57 1
Model No.
CBRT18
CBRT24
CBRT43
CBRT57
Size
29ER
27.5ER
29ER
29ER
Type
Asymmetric 2.6mm Drip
Asymmetric 2.6mm drip
Asymmetric 3mm
Asymmetric 3mm wave
specification
Hookless
Hookless
Hookless
Hookless
Width
33.5mm
33.5mm
37mm
37mm
inner Width
25.5mm
25.5mm
30mm
30mm
Functional
XC/AM
XC/AM
XC/AM/DH
XC/AM/DH
ERD
591
553
602
596
weight
(+/-15g)
340/360/380

320/340/360

360/400/450

360/400/450

lp mtbrims asymmetric mtb rim

Asymmetric Rims - A Game Changer

Eccentrically-aligned Wheels revolutionize cycling, offering improved efficiency and stability. These wheels reinvent design by adjusting dished wheel angles and spoke tension, standing superior to conventional models.


The design cleverly adjusts nipple positions, ensuring uniform tension and an optimal 2.4-2.6mm offset that enhances spoke balance by 15%. Each versatile rim can be used for either wheel, with markers indicating the correct placement.


More than an accessory, these wheels redefine the cycling experience, promising strength, balance, and advanced performance.

38.5mmt19t25
42mmt45
45mmt07
45mmt08
Model No.
CBRT19
CBRT45
CBRT07
CBRT08
Size
29ER
29ER
27.5ER
29ER
Type
Asymmetric 2.6mm Drip
Asymmetric 3mm
U Shape
Asymmetric 3.5mm
specification
Hookless
Hookless
Hookless
Hookless
Width
38.5mm
42mm
45mm
45mm
inner Width
30.5mm
35mm
38mm
39mm
Functional
XC/AM/DH
XC/AM/DH
AM/DH
AM/DH
ERD
583
602
541
589
weight
(+/-15g)
360/400/450

390/430/380

490/550

460/510

About Us

We prefer to be called a brand service provider rather than a factory.

At CBR, our expertise lies in the manufacturing of premium carbon fiber bike rims designed for both road and mountain bikes.

Our extensive experience and passionate team enable us to provide outstanding products and unparalleled customer service.

Driven by a commitment to innovation, excellence, and optimal performance, we continuously strive to exceed limitations and introduce groundbreaking solutions.

Our relentless dedication ensures that cyclists worldwide benefit from our cutting-edge products, elevating their cycling experience to new heights.

Get A Quote

WHY CHOOSE CBR?

Lighter & Safer
The CBR follows each technical iteration closely. From design to production, we carefully create lighter and safer bike rims for each rider.
Independent R & D
CBR product designers hold monthly product conferences and develop new products in response to customer needs and market trends.
Cost Reduction
CBR's sophisticated upstream and downstream supply chains save our customers a lot of money every year.
Customer Support
24/7 pre-sales and after-sales business team, professional warehouse management, and QC team, so that CBR customers get high-quality products at the same time, and have an excellent customer experience.
Get A Quote

Manufacturing Process

cbr 001 design carbon fiber wheel rim model structure

Design carbon fiber wheel rim model structure

cbr 002 carbon pre preg cutting

Carbon pre-preg Cutting

cbr 003 sort carbon pre preg for different rims

Sort carbon pre-preg for different rims

cbr 004 wrap carbon pre preg on rim mould

Wrap carbon pre-preg on rim mould

cbr 005 hot press molding

hot press molding

cbr 006 cnc machine drills the spoke holes in 4d direction

CNC machine drills the spoke holes in 4D-direction

cbr 007 smooth bike rim surface

Smooth bike rim surface

cbr 008 painting and decalcomania

Painting and decalcomania

cbr 009 qc and testing

QC and testing

cbr 010 wheel building and packing

Wheel Building and Packing

What Our Clients Are Saying

  • cbr carbon fiber rim client review 001
    Ethan

    I'm glad that I got a chance to try the CBR 26-inch mountain bike rims. The rims look nice. I didn't have any trouble building a wheel with a carbon rim compared to aluminum. The ERD measurement listed on the website said 516 mm but it was actually longer so measure twice before ordering spokes.

    The riding experience with a carbon rim is improved over previous rims I have used because of the reduced weight and improved stiffness. I had no trouble with this product and I would recommend these rims to anyone looking for carbon rims in this price range.

  • cbr carbon fiber rim client review 002
    William

    I am really glad that I got the chance to try the CBR 700c carbon road bike rims. I sent the rims to the bike shop and they built it up for me. I used the Halo Spin Master 6D road bike hubs, DT spokes, and Shimano 5800 11-speed cassette for these rims.

    Like most of the carbon road bike rims, the Neway rims have a 50mm (about 2 inches) deep V-shape profile with a 23mm wide rim bed. Both wheels have 24 holes. The rims are pretty light. They also look nice and provide a good riding experience.

Let's Chat

Have a question about our carbon fiber bike rims? Want to learn more about our manufacturing process? Or simply want to say hello? We'd love to hear from you! Use the contact form to send us a message and we'll be in touch as soon as possible.
cbr carbon bike rims supplier contact us (1)

About Products

Carbon rims are more sensitive to tire pressure and can crack under high pressure or hard impacts with low pressure, unlike alloy rims that may only dent. Proper attention to tire pressure is crucial to avoid damage to carbon rims.

While tire pressure is often a matter of personal preference, each rim has a recommended pressure range. Generally, wider rims or larger tires require lower pressure. The ideal air pressure should be high enough to prevent frequent rim bottoming but not too high that it makes the tire uncontrollable. On technical terrain, it's recommended to increase air pressure a few psi to prevent excessive rim strikes.

Checking air pressure before each ride is essential to prevent damage to the rim and ensure optimal performance. Consider your weight, riding style, tire choice, rim width, and terrain to determine the appropriate tire pressure. Good judgment is key in maintaining the health of your carbon rims.
MTB Wheels the front spoke tension :110 +-10 kilograms force
Rear wheel drive side :120 +-10 kilograms force
No drive side Rear :60% kilograms force of drive side Rear-wheel
Road bike wheels spoke tension:
front wheel: 110+-10 kg force
Rear wheel: 120+-10 kg force

Recommended maximum spokes tension: Less than 145 kgf.
UD, 3K, and 12K are just three different weaving types of carbon fibers that are widely used for manufacturing bicycle products. There are lots of debates online about the difference between carbon weaves of UD, 3K, and 12K. People who are just new to carbon fiber products maybe not know much about it.

UD is short for Uni-Directional, the fibers of UD weave are arranged in one direction, which is the most frequently used to make carbon fiber products. 3K means there are 3,000 filaments per "tow", and 12K means there are 12,000. They are decussated like a web. 3K weave carbon fiber is the most well-known.

The different weaving way makes the carbon fibers in different appearance and performance.

Appearance:
The illustration is as below, it shows different appearances of the weaves, and bicycle rims in different weaves. UD weave looks like plain black. Crossed 12K weave pattern is 4 times larger than the 3K weave. Customers may also know 1K, 6K, 18K, and 24K. They are also decussated/crossed, just in different sizes of the pattern.
what is the difference between weaves ud, 3k, and 12k
When it comes to fitting wheels onto your bike, it's generally safe to assume that road wheels will fit a road bike, and gravel wheels will fit a gravel bike. However, it's important to consider tire width and clearance between the tires and the fork/seat stays. To ensure a proper fit, start by measuring your tire width with calipers.

Next, use a set of Allen keys as feeler gauges to check the clearance at the chain stays, fork crown, and rear brake bridge. Once you find the wrench size that fits and the next size up doesn't, you have your clearance number for your existing setup. Keep in mind that Plus wheels will usually have wider and taller tires than those on narrower rims, so a 3mm clearance minimum is recommended.

If your bike frame is older (5-10 years old, depending on the manufacturer), it may not have the same level of tire clearance as more modern frames. Be sure to take this into consideration when choosing tires and wheels for your bike.
Asymmetrical and symmetrical rims differ in their design and drilling. Asymmetrical rims are specifically designed to compensate for the offset design of most hubs, resulting in more even spoke lengths, a stronger wheel build, and less truing than traditional rims. On the other hand, symmetrical rims utilize standard drilling practices and do not account for the offset hub design, resulting in a wheel build that may not be as strong as an asymmetrical build but is a more cost-effective option.
Free Coating Manufacturing process is a newly developed process in manufacturing carbon fiber rims, with no sanding or finish coating process conducted on the rim surface. Rims get polishing treatment right after the raw ones come out from the rim molds. The FCM process has been quite mature, All of our carbon fiber rims now are available with the FCM process. The advantages of an FCM-processed rim are lighter weight. scratch resistance. environment-friendly.
For all the Ultralight Edition rims and Premium Edition rims, we do make improvements over traditional tech (Standard Edition)) carbon fiber bicycle rims.

1. Materials: T1000 carbon fiber added to some Ultralight Edition rims, and/or T800 carbon fiber added to Premium Edition rims;

2. Optimized the layup system mixing T700 & T800/T1000 carbon fibers after many times of producing, testing, producing, and testing, found the best impact resistance over durability and tenacity.

3. We made a single mold to layer up the spoke bed wall. The flatness of the rim channel surface significantly improved so that the thickness at each spoke hole was completely consistent. It effectively prevents the carbon loop of the spoke hole wall from shifting;

4. Each rim would be attached with a card showing the flatness and roundness. The flatness and roundness are controlled quite well. Flatness is controlled within (+/-0.15mm), and roundness within +/-0.2mm, is easier to tune when doing wheelset assembly;

5. Three-year warranty offered for Ultralight and Premium Edition rims.

About Custom

Yes, we certainly can offer this kind of service.
Please email us a picture, and describe your clear and detailed request. We will provide a quote for you after checking your requirements and design that require your approval before proceeding. The cost depends on the size of the decals and the number of colors you choose.
After you have completed the purchase of rims and other parts with us, we will provide you with the shipping information so that you can send the hubs to us for the build process.
We are a professional carbon fiber composite company established in 2012. For the first ten years, we are a traditional production supplier, now we have established our own international business team to provide end-to-end services to more customers.
We use T700&T1000 carbon for the rim. High-temp resin( about 220 degrees Celsius)&Basalt on the braking surface for increasing stopping performance and durability. All rims are made from multiple densities and tensile strengths of carbon for the different structures in the rim.
Our testing is EN 14781 standard. Besides,we are supporting to do UCI and other testing for your brands.
For all carbon rims, we sell free from manufacturing defects, free from defects in workmanship and materials, under normal use and conditions, for a period of (3) years from the original invoice date.
Read more on our WARRANTY page.
We can drill any custom spoke type (like hidden spoke, UST spokes, etc.) and offer various spoke counts as per your request.

Regarding the angled holes, please provide us with clear and detailed information, we will consult with our engineer with regard to viability.

Please reach out to us if you require custom spoke service.
We can ship 8000 rims per month at our peak, mainly serving customers in the North N market. At the same time we also have the ability to undertake retail end-ring customization capacity.

Whether you are a bike shop owner, team or club owner, a bike enthusiast, or a local brand or distributor, we are confident that we can provide you with the best possible service.
Yes, we have professional designers for your painting and descaling. You only need to send us your idea or logo pictures. We will produce the drawing to confirm before putting it on the rims and send pictures to confirm before shipping.
We have enough quantity for stock, normally 3-5 days. Special order and hot selling season 15-20 days.
CHINA BIKE RIMS

Subscribe


Contact Info

Layne Zeng
Mail: quote@chinabikerims.com

Copyright ® 2023 CBR. All RIghts Reserved
bicyclechevron-downquestion-circle