ProX 30mm Wide Disc Brake Asymmetric Carbon Clincher Rims 700C Road Rim Tubeless Ready

• Asymmetric disc road carbon rims, 30mm width

• Carbon clincher rims (tubeless ready)

• 35/45/50/58mm depth optional

• Asymmetric design, with 3mm offset

• High quality, 2-year warranty

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    UD/3K/12K(Customized Decal Acceptable)

For disc brake carbon rims, it not only means simply removing the brake track, but also adjusting rim lay-up design to make it lighter so as to keep overall system weight competitive.

PAD30 series (ProX Asymmetric Disc 30mm width) carbon rims are made from Premium Toray T700+T800 carbon fiber, plus stable resin system, which is the basis for light weight.

In addition, we optimize the lay-up design, eliminate excessive materials to save weight, and add extra materials around spoke hole area for reinforcement.

Thus, our carbon clincher rims are light weight, but still strong and stiff.

PAD30 series disc brake carbon rims features asymmetric design (3mm offset). 

Asymmetric design helps to equalize the spoke tension between drive side and non-drive side, which makes carbon wheelset stiffer and stabler.

PAD30 series carbon road rims are with 30mm outer (22mm inner) width, with depth 35/45/50/58mm optional.


ProX Asymmetric Design 30mm Wide Disc Brake Carbon Clincher Rims Super Light

Model  PAD35C-SL
Terrian(Recommended) Road Road Road Road
Material T700+T800 T700+T800 T700+T800 T700+T800
Weight(±15g) 410g 455g 475g 525g
Max Weight Limit 100kg/220lb 100kg/220lb 100kg/220lb 100kg/220lb
Depth 35mm 45mm 50mm 58mm
Sectional Drawing carbon road rim drawing of 35mm deep carbon road rim drawing of 45mm deep
carbon road rim drawing of 50mm deep
carbon road rim drawing of 58mm deep
Outer Width 30mm 30mm 30mm 30mm
Inner Width 22mm 22mm 22mm 22mm
Rim Offset  3mm 3mm 3mm 3mm
ERD* 570mm 550mm 540mm 524mm
Rim Bead Hook Hook Hook Hook
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 125psi/8.6bar 125psi/8.6bar 125psi/8.6bar 125psi/8.6bar
Tire Size(Recommended) 700*28-45C 700*28-45C 700*28-45C 700*28-45C

calculate the ERD of road rims


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 PAD35C-SL rim=633mm-35mm*2+3.5mm*2=570mm

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 PAD35C-SL rim is 570mm+3mm*2=576mm

A: Rim nipple bed thickness (=3.5mm)

B: Length of nipple cap (2.5mm~3mm generally)

Asymmetric Design

Asymmetric Design

Asymmetric design road rims help to make wheelset with more even spoke tension between drive side and non-drive side.

Carbon road wheels built with asymmetric rims are of better stiffness and stability.

The spoke tension on such wheelset will not get loose easily, lower frequency for re-truing is needed.

Carbon Fiber Material

Carbon Fiber Material

Premium Toray T700 + T800 carbon fiber are used in our carbon rims.

Combining with stable resin system to make consistent quality and light weight carbon road bike rims.

Light Weight

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 Inner Width

Wider 22mm inner width, is able to fit wide tires, 700x28C, 700x30C (or even wider tires).

Wider stance for tire, easy tire mounting and dismounting.

Better traction and cornering performance.

Aero U Shape

Aero U Shape

Wide U Shape carbon road rims are more aerodynamic than traditional V Shape road bike carbon rims. 

It is also of better stiffness and strength. 

Bead Lock

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 Ready

Tubeless tire is getting popular in carbon road 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. 

Road Disc Brake

Road Disc Brake

Road disc brake provides more sensitive and precise braking performance than rim brake.

Carbon fiber road 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

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.

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