• Undulating rim depth (35/40mm)
• 30mm width, for gravel bike
• Aero and stable in all wind conditions
• Super light & standard weight optional
• Hook and hookless optional
Brand:
PROXItem NO.:
UCX30 GravelPayment:
Paypal, Bank TransferOrigin:
ChinaColor:
UD/3K/12K(Customized Decal Acceptable):
ProX has launched unique undulating gravel disc series rims. These rims are designed with 24/25mm inner width, which is suitable for gravel tires with size 700*30C-53C. Cyclocross/Gravel carbon rims are with relatively shallower profile but wider in width. Generally, it is something between Road and MTB rims.
As the name indicates, undulating carbon rims are with varying depth. If measured from spoke hole area, the UCX30-340 rim is with 40mm depth and in between it drops to 35mm. This depth profiles wave up and down 5mm for better aero performance and crosswind stability. It allow the riders to handle the bike better especially in the wind.
ProX undulating disc brake rim is only available in conventional 24 spoke holes currently. The rim is specific reinforced to each spoke hole drilling in the deeper area to increase rim strength and stiffness as well.
ProX decal/logo is offered for free as showed in ProX decal page. The decal will be applied on the rim and do the matte or glossy finish according to customers’ preference. You can choose either with such gold ProX decal or simply without decal (UD black matte or UD black glossy finish).
Apart from regular bead hook models (UCX30-340-SL, UCX30-340), we also offer hookless models (UZX30-340-SL, UZX30-340) which is closer to MTB carbon rims. For riders who plan to use gravel bikes more like a MTB hardtail bike, and will use tubeless tire at lower tire pressure (not exceed 60psi), hookless is a good option.
For riders who plan to use gravel bike more like a road bike, and prefer higher tire pressure (max 90psi), bead hook is recommended.
Standard weight version (without "SL" on the rim model name, such as UCX30-340) carbon rim is made from Toray T700 carbon fiber which is the basis to make high strength bike carbon rims. The max rider weight limit is 120kg/265lb.
Super light weight version (with "SL" on the rim model name, such as UCX30-340-SL) carbon rim is made from premium Toray T800 carbon fiber to achieve super light weight, which is more suitable for lighter weight riders (max weight limit 100kg/220lb). Both standard weight version and super light weight versions are optional for undulating gravel carbon rims.
ProX Carbon 30mm Width 700C Undulating Gravel Carbon Clincher Rims
Model
UCX30-340-SL
UCX30-340
UZX30-340-SL
UZX30-340
Terrain(Recommended)
Cyclocross/Gravel
Cyclocross/Gravel
Cyclocross/Gravel
Cyclocross/Gravel
Material
T800
T700
T800
T700
Weight(±15g)
400g
440g
380g
420g
Spoke Hole Options
24H
24H
24H
24H
Rim Bead
Hook
Hook
Hookless
Hookless
Outer Width
30mm
30mm
30mm
30mm
Inner Width
24mm
24mm
25mm
25mm
Depth
35-40mm
35-40mm
35-40mm
35-40mm
Max Weight Limit
100kg/220lb
120kg/265lb
100kg/220lb
120kg/265lb
Sectional Drawing
Rim Offset
0mm
0mm
0mm
0mm
ERD*
560mm
560mm
560mm
560mm
Tire Type
Tubeless or Clincher
Tubeless or Clincher
Tubeless or Clincher
Tubeless or Clincher
Brake Type
Disc Brake
Disc Brake
Disc Brake
Disc Brake
Max Spoke Tension
130kgf
130kgf
130kgf
130kgf
Max Tire Pressure
90psi/6.2bar
90psi/6.2bar
60psi/4.1bar
60psi/4.1bar
Tire Size(Recommended)
700*30C-50C
700*30C-50C
700*35C-50C
700*35C-50C
ERD*
Effective Rim Diameter (ERD) is the maximum distance that spokes need to bridge going from one end of the rim to another. How do we calculate the ERD of our rims? The corresponding equation and a drawing is as shown:
ERD=OD-(rim depth)*2+(rim thickness)*2
For example：
ERD of UCX30-340-SL rim=633mm-40mm*2+3.5mm*2=560mm
Most people prefer ERD including the length of the nipple cap. However, customers may use different nipples and components for building. Please add the height of the nipple cap(2.5mm~3mm generally) for your spoke calculation. If the height of the nipple cap is 3mm, then ERD of your UCX30-340-SL rim is 560mm+3mm*2=566mm
A: Rim nipple bed thickness (=3.5mm)
B: Length of nipple cap (2.5mm~3mm generally)
 |
Carbon Fiber Material Premium Toray T700 and T800 carbon fiber are used in our carbon rims. Combining with stable resin system to make consistent quality and light weight gravel carbon bike rims.
|
 |
Light Weight By using well designed lay-up structure, mixing Toray T700 and T800 carbon prepreg, light weight carbon rims are created. Excessive materials are eliminated to save weight, while extra materials are added around spoke hole for reinforcement. So, light weight is achieved without compromise in strength or stiffness. |
 |
Wider Inner Width
Wider 24/25mm inner width, optimized for 700x30C tires (also fit even wider tires). Wider stance for tire, easy tire mounting and dismounting. Better traction and cornering performance.
|
 |
Undulating Rim Depth The mid-depth profile waves up and down 5mm for better aero performance and crosswind stability.
Such design help to improve bike handling, bring you a faster and more confident riding experience. In addition, the stiffess and strength are also improved.
|
 |
Bead Lock There are small ridges on both side of rim channel called “bead lock”, which makes it easy for tubeless tire inflation. Together with hooked bead to well lock the tire, prevent it from blowing out.
|
 |
Tubeless Ready
Tubeless tire is getting popular in carbon gravel wheelset thanks to its better traction, lower rolling resistance and better riding comfort. All our carbon clincher rims are tubeless ready (also fit normal tube tires). Optimized anti-burp bump design provides easy tire mounting, dismounting, as well as air inflation. |
 |
Gravel Disc Brake
Gravel disc brake provides more sensitive and precise
braking performance than rim brake. Carbon fiber gravel bike rims designed specifically for disc brake use, no brake track. No “burning rim” worries during braking. Specific carbon prepreg lay-up design for disc brake rims, longer durability and lighter weight.
|
 |
2-Year Warranty
We have strict production management system, QC and
Testing process. Our quality is always very good and reliable. For all carbon rims and carbon wheels sold by ProX, 2 years’ quality warranty is offered (starting from the date of package being signed). Click Warranty Policy to see more details in another page. |
Room 204, No.598 South Guankou Road, Xiamen City, 361023, China
Tel : +86-592-7192568
Whatsapp : +86 15159263591
Email : info@proxcarbon.com
Microsoft Teams : Cassie ProX
