700C 25mm Internal Width Carbon Gravel Rim with Reinforced Wide Bead

Decription:

This 25mm internal / 36mm external carbon gravel rim is precision-engineered to strike an ideal balance between tire support, spoke tension equilibrium, and seamless valve integration, built to meet the demands of real-world gravel terrain. It's optimized for gravel racing, backcountry bikepacking, all-road adventure riding, and mixed-terrain daily commuting. It performs reliably across loose gravel, packed dirt, rough tarmac, and light singletrack — making it a versatile workhorse for riders who transition seamlessly between paved and unpaved surfaces.

It features a 5.5mm reinforced wide bead seat that expands contact area under hard impacts, distributing loads across a broader section of the tire casing and reducing localized stress at the rim edge for superior impact resistance. The 2.8mm asymmetric rim profile creates a more balanced spoke tension structure between the drive and non-drive sides, delivering consistent wheel build quality and long-term durability.
The valve-hole with platform design provides a precise, defined seating interface for the valve stem, ensuring uniform positioning and airtight assembly for all tubeless setups.

Features：

- 5.5mm Reinforced Wide Bead 

- A wider bead profile helps distribute impact loads and reduce localized tire compression during hard rim strikes.

- Stepped valve-hole design

- It helps improve valve positioning and supporting a cleaner, more consistent tubeless assembly.

- 25mm Internal / 36mm External Width

- Developed around modern gravel tires for stable tire support and a more integrated rim-and-tire profile.

- 2.8mm Asymmetric Rim Architecture

- Helps optimize spoke bracing angles and improve spoke-tension balance.

- 35 / 40 / 45 / 50mm Depth Options

- Four rim profiles for different gravel wheelset positioning.

- 35C–70C Tire Range 

- Compatible with a broad range of gravel and mixed-terrain tire sizes.

25mm IW with Reinforced Bead Wall Specifications

Model	Pro-SA2535	Pro-SA2540	Pro-SA2545	Pro-SA2550
Sectional Drawing
Material	T700 & T800 (Standard weight) T800 & T1000 (Flyweight) T1100(Ultralight)	T700 & T800 (Standard weight) T800 & T1000 (Flyweight) T1100(Ultralight)	T700 & T800 (Standard weight) T800 & T1000 (Flyweight) T1100(Ultralight)	T700 & T800 (Standard weight) T800 & T1000 (Flyweight) T1100(Ultralight)
Bead Width	5.5mm	5.5mm	5.5mm	5.5mm
Offset	2.8mm	2.8mm	2.8mm	2.8mm
Use	Gravel/CX	Gravel/CX	Gravel/CX	Gravel/CX
Type	Clincher	Clincher	Clincher	Clincher
Tubeless	Ready	Ready	Ready	Ready
Internal/External Width	25mm/36mm	25mm/36mm	25mm/36mm	25mm/36mm
Depth	35mm	40mm	45mm	50mm
ERD(Include Nipple)	575mm	565mm	555mm	545mm
Standard Weight	470+/-15g	505+/-15g	530+/-15g	545+/-15g
Flyweight	425+/-15g	450+/-15g	470+/-15g	485+/-15g
Ultralight	380+/-15g	400+/-15g	410+/-15g	425+/-15g
Standar Weight Limit Flyweight Weight Limit Ultralight Weight Limit	135kg 100kg 90kg	135kg 100kg 90kg	135kg 100kg 90kg	135kg 100kg 90kg
Spoke tension	130kgf	130kgf	130kgf	130kgf
Max Tire Pressure (with 35C)	50psi / 3.45bar	50psi / 3.45bar	50psi / 3.45bar	50psi / 3.45bar
Tire Recommended	35C ~ 70C	35C ~ 70C	35C ~ 70C	35C ~ 70C