ProX Super Light Gravel Wheels Full Carbon Spoke Gravel Bike Wheels

Carbon spoke gravel wheels

• Full carbon spokes, super light and stiff

• Widened 26mm inner width carbon rims, for 35C-50C tires

40/45/50mm height optional

• Gravel specific G71DB hubs, 36T ratchet freehub system

• Shimano HG 11/12s or SRAM XDR optional

  • Brand:

    PROX
  • Item NO.:

    G71DB Gravel
  • Order(MOQ):

    1
  • Payment:

    Paypal, Bank Transfer
  • Origin:

    China
  • Color:

    Black/UD/Marble(Customized Decal Acceptable)
DESCRIPTION

ProX G71DB Disc Brake Super Light Carbon Spokes Gravel Carbon Wheels

Carbon wheels are the ultimate upgrade when you’re looking to optimize the gravel riding experience. This series carbon wheels provide a stiffer ride and improved acceleration. 

ProX G71DB Super Light Carbon Spokes Gravel Carbon Wheels

    [Hubs]

  • Ratchet 36T freehub system: The G71DB hub is made by well-known Taiwan hub manufacturer and with the reliable quality as usual. The weight of hub is only 320g/pair which is light weight. Hubs are designed with DT Swiss style Ratchet 36T freehub system which improves power transfer efficiency. 
  • 24H spoke holes: It is with straight pull spoke system and 24H with 1:1 spoke ratio for both front and rear wheel. With a 24-hole spoke count, the wheel achieves improved strength and durability, ideal for the demands of gravel riding.
  • Conventional drilled-flange spoke system: The hub features drilled spoke holes on the flanges for standard spoke installation. Unlike hubs with captive or slot-in spoke systems, this G71DB uses a traditional design with drilled flanges, allowing spokes to be inserted directly through round spoke holes. It makes wheel building, servicing, and spoke replacement simple and widely compatible. Best for exploration, gravel riding and remote routes.

drilled-flange spoke system VS captive spoke system
                                                                                            Drilled-flange spoke system)
                                (Captive spoke system)

  • Hub design: The hubs are designed with thread on end caps, which makes the connection between hub body and end caps much more stable. The tightening torque we recommend for the end caps is 8N.
    Hubs: thread-in and internal hex design, please use two hex wrenches(M12) when screwing/unscrewing the caps from hubs.

ProX G71DB gravel specific hub features


    [Spokes]

  • The unique full carbon spoke (only 2.9g/pc!) is customized which is 3.1mm wide aero bladed by default. Such carbon spokes (model CS1) is lighter but stronger than regular steel spokes. The carbon spokes look similar as regular spoke, except for the carbon fiber material T800 and ultra light weight. The weight of our CS1 carbon spoke plus specific aluminum nipple is only 3.2g, which is about 1.8g lighter than well-known Sapim CX-Ray spoke with nipple. The max spoke tension of the carbon spoke is 360kgf according to our in-lab test, which is much higher than test standard (typically 300kgf).


    [Rims]

Please note: Due to the special wheel building tools needed for carbon spoke wheel building, as well as bigger nipple size (around 7mm diameter head, which is larger than Presta valve hole diameter 6.5mm), nipple can not be put into the rim through valve hole. It means No-External-Hole rim can not be built with carbon spokes (which comes with bigger nipple head). Thus, tubeless rim tape is a must if you intend to use tubeless tires. If you prefer No-External-Hole wheels, please choose our other carbon wheels (regular steel spokes). 

tubeless compatible wheels, No External Hole and External Hole

Cyclocross and gravel carbon wheels demand versatility and durability. ProX gravel bike carbon wheels are designed with 26mm inner width rims, which is suitable for gravel tires with size 700*35C-50C. The 40/45/50mm rim height options strikes a compelling balance for mixed-terrain adventures. 


Rim Height Options: 40mm vs. 45mm vs. 50mm
Choosing the right rim height depends on riding style and terrain:
40mm: Ideal for technical, unpredictable terrain. The lower profile prioritizes agility, weight savings, and crosswind stability. Perfect for riders tackling steep climbs or twisty singletrack.
45mm: A versatile middle ground. Balances aerodynamic gains compared to 40mm rim, and with moderate weight. It suits riders mixing paved gravel terrain.
50mm: Maximizes aerodynamic efficiency for fast-paced gravel races or rolling terrain. Slightly heavier on weight but offers noticeable speed retention on smoother surfaces.

carbon spoke gravel wheels 40/45/50mm height

Carbon Spoke Gravel Wheels are lighter and performance-driven. 

Ideal for:  
Fast gravel riding
Mixed road riding
Performance-oriented riders
Gravel racing and training
Riders who value efficiency and responsiveness

If you keen on simpler maintenance, prioritize durability, budget-focused builds or you are only a first-time gravel rider, please take Steel Spoke Gravel Wheels into your consideration.

SPECIFICATION

ProX G71DB Full Carbon Gravel Bike Wheels With Carbon Spokes Specification:
-Hub: ProX G71DB disc hubs (front 12*100mm TA/rear 12*142mm TA), with steel bearings. Ratchet 36T freehub system

-Decal/Logo: No decal/logo on the rims and hubs by default

-Rim Weave: Black or marble

- Rim Finish: Matte or glossy finish

-Spoke options: 3.1mm width (ProX CS1), aero carbon spokes, made of carbon fiber T800

-Rim depth options: 40/45/50mm

-Disc brake type: center lock
-Cassette Body: Shimano HG 11/12s or SRAM XDR
-Type: straight pull
-Spoke Hole Count: 24 spoke holes(1:1 ratio) on both front and rear
-Tire Type: Clincher/Tubeless compatible

-Nipple: Aluminum(9mm length)
-Spoke Tension (recommended): ≤170kgf

-Tire Pressure: 125psi/8.6bar

-Maintenance Frequency On Hubs:
Standard Use: every 1,000–1,500 km or 3–6 months (whichever comes first).
Harsh Conditions (wet, muddy, dusty): every 500 km or monthly.
Post-Ride Check: clean externally after muddy/rainy rides to prevent grime buildup.
-Warranty Year: 2 years

-Tubeless Valve (not included): 44/60/80mm length optional

Tubeless Valve


ProX Carbon Spoke Gravel Bike Wheelset With G71DB Ratchet System Hubs:
Model Rim Depth Outer Width Inner Width Tire Type Hub Front Size Rear Size Spoke
Tire Size
(Recommended)
Weight
(+/-3%)
G71DB-PXG26-40C-CS1 PXG26-40C 40mm 31.5mm 26mm Tubeless or Clincher ProX G71DB Disc 12*100mm 12*142mm ProX CS1 700*35C-50C 1292g
G71DB-PXG26-45C-CS1 PXG26-45C 45mm 31.5mm 26mm Tubeless or Clincher ProX G71DB Disc 12*100mm 12*142mm ProX CS1 700*35C-50C 1332g
G71DB-PXG26-50C-CS1 PXG26-50C 50mm 31.5mm 26mm Tubeless or Clincher ProX G71DB Disc 12*100mm 12*142mm ProX CS1 700*35C-50C 1372g


700C Widened Gravel Bike Specific Carbon Clincher Rims (Tubeless Ready)

Rims PXG26-40C PXG26-45C PXG26-50C
Max Weight Limit 120kg/265lb 120kg/265lb 120kg/265lb
Material T700 T700 T700
Sectional Drawing gravel carbon rim drawing PXG26-40C gravel carbon rim drawing PXG26-45C gravel carbon rim drawing PXG26-50C

TECHNOLOGY
Carbon Fiber Material

Carbon Fiber Material

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

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

Light Weight

Light Weight

By using well designed lay-up structure and Toray T700 carbon pre-preg, 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.

Narrow Inner Width

Widened 26mm Inner Width

Relatively wide 26mm inner width, make it possible to fit multiple sizes of tire.

Normally gravel tire size 700x35C-50C are recommended (also fit other wider tires).

Aero U Shape

Aero U Shape

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

It is also of better stiffness and strength.  

Tubeless Ready

Tubeless Ready

Tubeless tire is getting popular in bicycle wheels 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

Disc Brake

Gravel disc brake provides sensitive and precise braking performance.

Carbon fiber bike gravel 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.

Hand Built

Hand Built

All our bicycle carbon wheels are hand built by experienced mechanician.

Based on customers’ demand, various choice of hubs, spokes and nipples are optional.

After wheel built, they are trued precisely at high standard (≤0.3mm) on roundness, lateral and center tolerance.

ProX Road Hubs

ProX G71DB Disc Hubs

ProX own mould G71DB gravel hubs are used. High quality hubs with cheap price.

G71DB disc brake hubs are designed with ratchet freehub system with steel bearings.

Such hubs can also be etched with your customized logo.

12*100/12*142 thru-axle, with Shimano HG 11/12-speed or SRAM XDR cassette body.

carbon spokes

ProX CS1 Carbon Spokes

The customized ProX CS1(3.1mm width) carbon spokes are used.

The carbon spoke provides better aerodynamics, stiffness and better fatigue life compared to the traditional steel spokes. 

Perfect bladed aero shape, high elasticity and low drag coefficient.

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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