E-Bike MTB Rims
categories
new products
LightCarbon High Performance Carbon Road Wheels Light Weight Disc Carbon Wheel Ratchet Freehub • Light weight road carbon wheels, high performance • C53DB hubs with ceramic bearings, Ratchet 54T freehub • Super light Sapim CX-Ray spokes, light weight and high performance • Optional freehub: Shimano HG, MSR, SRAM XDR, Campy N3W • Widened 23mm inner width carbon rims, aero and light • Compatible for 700C*30C-50C tires more
LightCarbon Super Light Gravel Bike Wheels Full Carbon Spoke Wheels For Gravel • Full carbon spokes gravel wheel • Aero carbon spokes, ultra light and stiff • G71DB gravel specific hubs, 36T ratchet system • Shimano HG 11/12s or SRAM XDR optional • Widened 26mm inner width gravel carbon rims, tubeless ready • 40/45/50mm height optional • Fit 700x35C-50C tires more
LightCarbon 32inch MTB Rims 32er Mountain Bike Carbon Rims Tubeless Ready - Big diameter 32er MTB carbon rims - Designed for XC/All Mountain use - Asymmetric design - Hookless, tubeless ready - Light weight T700+T800 material - High quality, 2-year warranty more
LightCarbon 5-Spoke Carbon Wheels 20 Inch 406 And 451 Carbon Wheels For Folding And BMX Bikes • 20 inch 5-spoke carbon wheels • For folding bikes and BMX bikes • ETRTO options: 451mm and 406mm • 26mm outer width/19mm inner width • Disc brake hubs, 36T Ratchet freehub system • Front wheel 5*100QR, Rear wheel 5*135QR • Tubeless ready, fit 20*1.1''-1.5'' tire more
LightCarbon 3-Spoke Carbon Wheels 20 Inch 406 And 451 Spoke Wheels For Folding and BMX Bikes • 20 inch 3-spoke carbon wheels • For BMX and folding bikes • ETRTO options: 406mm and 451mm • 26mm outer width/19mm inner width • Tubeless ready, fit 20*1.1''-1.5'' tire • Disc brake hubs, 36T Ratchet freehub system • Front wheel 5*100QR, Rear wheel 5*135QR more
XXE Carbon Crank Super Light Carbon Crankset - Super Light carbon crank, only 310g! - Crank arm material: carbon fiber. - Spindle diameter options: DUB (29mm) and 24mm. - Alloy spider and Carbon spider optional. - Power Meter version is also optional. - Compatible with popular power meters like Xcadey, Sigeyi, Power2Max and Elilee EK-01 - 2 years' quality warranty more
LightCarbon Full Disc Wheel Ultra Light 27mm Wide Aero 700C Rear Disc Wheel • Ultra Light rear disc wheel, only 970g/pc! • 27mm outer (21mm inner) width • 36T Ratchet freehub system • Hub with ceramic bearings • Disc brake (center lock) • Compatible for 700*28C-45C tires more
- 27.5er and 29er E-bike specific carbon rims.
- Low profile(18mm) and high profile(28mm) optional.
- Reinforced impact resistance structure.
- Ultra smooth inner wall.
- Tubeless ready.
item no.:
E-Bike Rimsproduct orgin:
Chinapayment:
Paypal, Bank transfercolor:
UD/3K(customized painting acceptable)E-Bike MTB Rims Specific Carbon Rims For E-Mountain Bike
Features:
- 27.5er model (RD737) and 29er model (MC937, AD938, AD940) optinal, designed specifically for e-Mountain bikes.
- 29er model with asymmetric design, help to build even spoke tension wheels (between drive side and non-dirve side).
- Reinforced lay-up struction design for better strength and impact resistance, more durable and safe to use.
- Ultra smooth inner wall, for even wall thickness and strength.
- Tubeless Ready.
27.5er and 29er E-Bike Carbon Rims E-Mountain Bike Specific Carbon Rims
| Model |
RD737-EN/DH |
MC937-EN/DH |
AD938-EN/DH |
AD940-EN/DH | ||||
|
Cross Section |
 |
 |
 |
 |
||||
|
Recommended Usage |
27.5er Ebike/Enduro/DH |
29er Ebike/Enduro |
29er Ebike/Enduro |
29er Ebike/Enduro |
||||
|
Material |
Toray T700 |
Toray T700 |
Toray T700 |
Toray T700 |
||||
|
Weight |
520±15g |
500±15g |
490±15g |
490±15g |
||||
|
Max Weight Limit |
120kg/265lb |
120kg/265lb |
120kg/265lb |
120kg/265lb |
||||
|
Sectional Drawing |
 |
 |
 |
 |
||||
| Width |
37mm |
37mm | 38mm | 40mm | ||||
| * ERD |
553mm |
603mm |
583mm |
583mm | ||||
| Carbon Weave |
UD/3K |
UD/3K |
UD/3K |
UD/3K |
||||
| Max Tire Pressure |
35psi/2.4bar |
35psi/2.4bar |
35psi/2.4bar |
35psi/2.4bar |
||||
| Tire Size Recommended |
650b*2.3''-2.8'' |
29*2.25''-2.6'' |
29*2.3''-2.8'' |
29*2.4''-3.0'' |
||||
* ERD Calculate
ERD is short for effective rim diameter, it is the maximum distance that spokes bridge going from one end of the rim to another.
How do we calculate the ERD of our rims? Below are calculation equation and sketch for your reference:
ERD=Rim outer diameter-(rim depth)*2+(Rim nipple bed thickness)*2
For example：
ERD of MC937-EN rim=633mm-18mm*2+3.5mm*2=603mm
Most people prefer ERD including the length of the nipple head.
However, customers may use different nipples and components for building.
Please add the length of the nipple head (2.5mm~3mm generally) for your spoke calculation.
If the length of the nipple head is 3mm, then ERD of your MC937-EN rim is 603mm+3mm*2=609mm
A: Rim nipple bed thickness (=3mm)
B: Length of nipple head (2.5mm~3mm generally)
LightCarbon MTB rim has passed UCI 120J impact testing (double of UCI standard 60J !)
Why Asymmetric Design?
Asymmetric design is becoming a new trend in mountain bike rims.
Wheelsets built with asymmetric rims are of better strength, stiffness and durability.
The main advantage of asymmetric rim is: it helps to equalize the spoke tensions between drive side and
non-drive side of wheels.
How? Please refer to below illustration:
In mountain bike wheelsets with disc brake, the center of rear hub (Point A) is not in the same position of the center of flange (Point B). The center of hub (point A) is closer to the drive-side. During wheel truing, in order to get hub to the center of rim, the spokes are pulled to higher tension on drive side (compared to non-drive side).
Similarly, in MTB front wheel, the center of hub is closer to the disc rotor side (non-drive side), which makes the non-drive side spoke tension higher than drive side.
The spoke tension difference is normally as large as 40%! Such big difference makes the wheelset weaker as it could be.
As the higher spoke tension side always break easier, while the lower spoke tension side always loose easier.
Asymmetry rims are made to solve such issue.
In asymmetric wheels, the bracing angles are improved by make the nipple holes offset to the center.
Thus, the spoke tension between drive side and non-drive side is much more equalized.
Our asymmetric rims are with 2.6~3.5mm offset from the center (a bit different for different width of rim), which helps to improve the spoke tension over 20%.
Therefore, wheelsets build with our asymmetric rims are of better strength, stiffness, and will stay true longer.
We will reply you within 24h after received your inquiry
- Full T700 Toray Carbon fiber - Steer ID 28.6mm - Handlebar ID 31.8mm
- New aero road disc brake frame - Flat mount disc brake mount - 140mm disc rotor - Full internal cable routing - Mechanical and Di2 groupset compatible - High modulus carbon fiber
- Made of Toray T700+T800 carbon fiber - Fit 700*50C or 650B*1.95'' max tire - M12*100mm thru-axle dropout - Designed with fender mount - Aero Fin design to hide brake caliper - With 3-rivet and No rivet options - 2 years quality warranty
- Full internal cable routing - Made of Toray T700 carbon fiber - Aerodynamic shape integrated with stem -Carbon computer mount
- Super Aero Design - Toray carbon fiber T700 - Full hidden cable routing - Press fit BB86 bottom bracket - Max tire clearance 700C*28C - Flat mount disc brake, 140mm or 160mm - Front 12*100mm/Rear 12*142mm thru-axle - 2 years quality warranty
- Asymmetric design disc brake road carbon rim. - Reinforced nipple bed for larger spoke tension. - 30mm wide U shape design, better strength and aerodynamics.
email : info@lightcarbon.com
add : 4/F, NO.3 Bldg, Longtou Industrial Zone, NO.9 Xingmei Road, Xiamen, 361022, China
follow us :
newsletter
copyright © 2026 LightCarbon Composite Technology Co.,Ltd.all rights reserved.
the professional team to service !
