• Mid-range C52DB hub gravel carbon wheels
• Hubs with ceramic bearings, ratchet 36T freehub system
• Widened 32mm inner width, for 44C-70C tires
• 40/45/50mm height optional
• Shimano HG 11/12s or SRAM XDR 12s optional
• Pillar 1423 or Sapim CX-Ray spokes optional
Brand:
PROXItem NO.:
C52DB Gravel-32Payment:
Paypal, Bank TransferOrigin:
ChinaColor:
UD/3K/12K(Customized Decal Acceptable):
ProX C52DB Disc Brake Gravel Bike Carbon Wheelset - Ratchet 36T Hub With mid-range Price
Considering the price of DT Swiss hubs increases quickly, and lead time is getting longer and longer, ProX Carbon has developed our own mould disc brake hubs (called C52DB). It features an shape imitation of DT 240 hub. Reliable quality hubs made by well-known hub manufacturer in Taiwan.
ProX C52DB disc brake hubs feature ceramic bearings by TPI brand and only 344~355g/pair with different freehub bodies. Hubs are designed with Ratchet 36T freehub system which improves power transfer efficiency, combining with ceramic bearings, the rolling resistance is minimized. Such hubs help you to shorten acceleration time and save energy. Ceramic bearings are smoother, rounder and with more uniform size. In that case, the friction is reduced and that can contribute more energy to the wheels. Ceramic bearing is also harder than steel bearings (up to 30%), which improves durability, and they also don’t rust for less maintenance. The ratchet freehub system is applied on high-end hub brand hubs generally, such as DT swiss hubs.
In addition, C52DB hubs can be made with your customized logo (either etch logo or make stickers). So it will become your own brand hubs!
Shimano Micro Spline Road (MSR)
Shimano HG 11/12s
SRAM XDR 12s
Campagnolo N3W
Cyclocross and gravel carbon wheels demand versatility and durability. ProX gravel bike carbon wheels are designed with 32mm inner width rims, which is suitable for gravel tires with size 700*44C-70C. 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.
(50mm wheels built on PXG074-D gravel frame)
PoX C52DB Disc Brake Carbon Gravel Bike Wheels Specificaton:
-Hub: ProX C52DB hubs, disc brake, Ratchet 36T freehub system, (front 12*100mm TA/rear 12*142mm TA)
-Disc Brake Type: center lock
-Type: straight pull
-Cassette Body: for Shimano HG 11/12s, SRAM XDR 12s, Shimano Micro Spline Road (MSR) or Campagnolo N3W
-Spoke Hole Count: front 24H and rear 24H
-Tire Type: Clincher/Tubeless ready
-Spoke:
Option 1: Pillar 1423 spoke, bladed, dimensions 2.0-(1.5x2.3)-2.0mm
Option 2: Sapim CX-Ray, bladed and aero, dimensions 2.0 - (0.9x2.2) - 2.0 mm
-Spoke Tension (recommended): ≤145kgf
130~140 kgf on rear drive side and front non-drive side
-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
ProX Carbon Gravel Bike Wheelset with C52DB Ratchet System Hubs and Pillar 1423 Spokes:
| Model | Rim | Depth | Outer Width | Inner Width | Tire Type | Hub | Front Size | Rear Size | Spoke |
Tire Size
(Recommended)
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Weight
(+/-3%)
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| C52DB-PXG32-40C-1423 | PXG32-40C | 40mm | 37.5mm | 32mm | Tubeless or Clincher | ProX C52DB Disc | 12*100mm | 12*142mm | Pillar 1423 | 700*44C-70C | 1540g |
| C52DB-PXG32-45C-1423 | PXG32-45C | 45mm | 37.5mm | 32mm | Tubeless or Clincher | ProX C52DB Disc | 12*100mm | 12*142mm | Pillar 1423 | 700*44C-70C | 1560g |
| C52DB-PXG32-50C-1423 | PXG32-50C | 50mm | 37.5mm | 32mm | Tubeless or Clincher | ProX C52DB Disc | 12*100mm | 12*142mm | Pillar 1423 | 700*44C-70C | 1600g |
ProX Carbon Gravel Bike Wheelset with C52DB Ratchet System Hubs and Sapim CX-Ray Spokes:
| Model | Rim | Depth | Outer Width | Inner Width | Tire Type | Hub | Front Size | Rear Size | Spoke |
Tire Size
(Recommended)
|
Weight
(+/-3%)
|
| C52DB-PXG32-40C-Ray | PXG32-40C | 40mm | 37.5mm | 32mm | Tubeless or Clincher | ProX C52DB Disc | 12*100mm | 12*142mm | Sapim CX-Ray | 700*44C-70C | 1440g |
| C52DB-PXG32-45C-Ray | PXG32-45C | 45mm | 37.5mm | 32mm | Tubeless or Clincher | ProX C52DB Disc | 12*100mm | 12*142mm | Sapim CX-Ray | 700*44C-70C | 1460g |
| C52DB-PXG32-50C-Ray | PXG32-50C | 50mm | 37.5mm | 32mm | Tubeless or Clincher | ProX C52DB Disc | 12*100mm | 12*142mm | Sapim CX-Ray | 700*44C-70C | 1500g |
700C Cyclocross/Gravel Bike Carbon Clincher Rims (Tubeless Ready)
Rims
PXG32-40C
PXG32-45C
PXG32-50C
Max Weight Limit
120kg/265lb
120kg/265lb
120kg/265lb
Material
T700
T700
T700
Sectional Drawing
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Carbon Fiber Material Premium Toray T700 carbon fibers are used in our carbon rims. Combining with stable resin system to make consistent quality and light weight carbon fiber bike rims.
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Light Weight By using well designed lay-up structure, mixing Toray T700 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. |
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Widened 32mm Inner Width Relatively wide 32mm inner width, make it possible to fit multiple sizes of tire. It's designed for CX/gravel bikes. Normally gravel tire size 700x44C-70C are recommended.
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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. |
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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. |
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Disc Brake Gravel disc brake provides more sensitive and precise braking performance than rim brake. Carbon fiber 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. |
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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.
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ProX C52DB Disc Hubs ProX own mould C52DB hubs are used. High quality hubs with good price. C52DB disc brake hubs are designed with Ratchet 36T freehub system, and with ceramic bearings inside. Such hubs can also be etched with your customized logo.
12*100/12*142 thru-axle, with Shimano HG 11/12s, SRAM XDR 12s, Shimano Micro Spline Road (MSR) or Campagnolo N3W cassette body.
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Pillar Spokes The popular Pillar PSR AERO 1423 spokes are used. Pillar patented cold forge technology is applied in the spoke production which increase the strength up to 20%. Perfect aero shape, high elasticity and low drag coefficient.
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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
