Dear All, We would like to inform you that our office and factory will be closed for the Chinese New Year holidays from February 14 to 23, 2026. Normal operations will resume on February 24, 2026. Dur...
Item No.:
MX938EBProduct Origin:
ChinaPayment:
Bank Transfer, PayPal, Credit Card.Customizable:
All wheels are 100% customizable at Carbonal Bike Factory. If your preferred specs are not listed, feel free to contact us (sales@carbonalbike.com) with your special requirements described.
Product Item: 29 inch E-bike rim carbon 38mm wide 23.5mm depth hookless tubeless ready

This E-bike carbon rim with its 31mm internal width is an ideal position in the middle of the strength, to weight, to width range, it works with many tire sizes, it's the perfect choice for all eMTB's meant to be ridden on proper MTB terrain.
Specification:
|
Item: |
MX938EB |
Use: |
E-bike, Enduro |
|
Rim type: |
29" hookless |
Material: |
Toray T700 & T800 carbon fiber |
|
Tubeless ready: |
Yes |
Weight: |
500g±20 |
|
External/Internal width: |
38mm / 31mm |
ERD: |
598mm |
|
Depth: |
23.5mm |
Weave: |
UD, 3k, 6k, 3k twill, marble |
|
Weight limit: |
125kgs |
Finish: |
Matte, glossy |
|
Spoke hole count: |
28 / 32 / 36 |
Assemble hole diameter: |
8.5mm |
|
Spoke hole diameter: |
4.5mm / 2.5mm or customized |
Valve hole diameter: |
6.5mm |
|
Max spoke tension: |
140kgf (recommended 110~130kgf) |
Max tire pressure: |
60psi / 4.1bar |
|
Tire size: |
2.3" ~ 3.0" (recommended) |
Min tire pressure: |
25psi / 1.75bar |
|
Decal: |
Customized |
Standard: |
EN standard |
Features:
5 years warranty:
Carbonal warrants its products to be free from manufacturing defects for a period of 5 years after original date of purchase.
This warranty only applies to the original owner and is not transferable.
Valid proof of purchase, pictures of the defect and the product serial number is required for a warranty claim.
Please retain your proof of purchase for any future warranty claims.
This warranty does not cover:
1. Normal wear and tear;
2. Any damage caused by accident, misuse, neglect, abuse, or any other fractious reasons;
3. Improper assembly, maintenance, or maintenance by an unauthorized technician.
1.3 million liability insurance worldwide, included commercial general liability and occurrence basis.
Unique Manufacturing Process:
Our Engineering team creates a unique fiber orientation which amplifies the desired riding characteristics for a given rim. And each rim carries its own layup schedule documents which are meticulously by the layup workers, it ensures the accuracy of each rim in the production process.
Our carbon rims are made in one piece molding, each rim is made by one piece long carbon fiber, no wrinkles, to make the strength of rim is the strongest. And we use a unique process to remove the air bladder from the valve hole, so that the rim does not have to be patched like traditional manufacturers use.
100% Quality Inspection:
Carbonal does 100% quality inspection and record in database, each carbon rim is given a unique ID number, which allow us to deliver the highest quality product possible and track every rim to ensure the best after-sale service.
Read more about Carbonal carbon rim Quality Control.
29 inch E-bike rim carbon 42mm wide 25mm depth hookless tubeless ready
Item MX942EB, weight 510g, ERD 595mm. The extra power of E-bikes asks for extra strong parts. This E-bike carbon rim feature a wide, reinforced profile, this ensures they are long lasting and perfectly compatible with higher volume tires.
Extralite Cyber SP hub + Sapim CX-Ray spoke custom road carbon wheels
[Rim Brake] Custom hand built road carbon bicycle wheels with Extralite Cyber straight pull hub + Aero CX-Ray Sapim spokes & nipples. Top Racing level, custom wheel with Extralite SP for the rider looking for the last word in weight reduction.
U shape 60mm deep 18mm wide clincher tubeless carbon disc rim
Item D18-60, weight 500g, ERD 525mm. U aerodynamic shape makes this carbon 60mm deep high profile and 18mm internal width disc brake clincher tubeless rim lightweight but still stiff. Made for winning in sprint finishes, time trials, triathlons and circuit races.
29er mtb XC 27mm internal width 25mm deep asymmetric carbon rim
Item XC927X, weight 330g / 365g, ERD 595mm. This 29er mtb rim 27mm inner and 33mm outer width, asymmetric 3mm offset rim profile balances drive and non-drive side spoke tension to create a more durable and well-balanced light mtb wheel, it's perfect upgrade for your xc mountain bike.
700C road bicycle U shape 25mm wide 38mm deep clincher rim tubeless ready
Item R18-38, weight 390g/470g, ERD 569mm. Wider, stronger and faster. This road 38mm deep clincher rim is 25mm wide. The wide rim profile offers improved aerodynamics, better handling in crosswinds condition and faster riding.
29er disc bike rims 24mm inner width 50mm depth hookless for cyclocross and gravel bikes
Item D24-50H (GZX50), weight 420g, ERD 545mm. This 28mm external and 24mm internal width 50mm road disc rim provides the perfect platform for anything from a 30C to 50C gravel, cyclocross tire and makes tubeless set up a breeze.
Pro 20 inch 406 23mm wide 45mm depth carbon fiber clincher rim
Item BMX406-45, weight: 310g±15, ERD 340mm. This rim can be used for Folding bike, Recumbent bike, Birdy bike, Moulton bicycle, Dahon, Tern bike, Tyrell, Fsir, BMX, BMX Racing etc.
Downhill 29 inch mtb carbon rim 35mm inner wide hookless tubeless ready
Item DH935, weight 600g, ERD 595mm. Downhill 29er mtb carbon rim, 35mm inner width can fit wider mountain bike tyres. These downhill carbon rims feature strong, stiff, durable and compliant carbon rims designed for punishment.