Gravel rim Alexrims GRX25P, disc brake, 26.3mm bead seat, 700C (622×25), 32 holes, black

Alexrims GRX25P is a 700C gravel rim engineered for disc brake wheels and mixed-surface riding. The rim has a 26.3 mm bead seat diameter and a 622×25 profile suited to 700C tires, with 32 spoke holes and a black finish. With a listed weight of 507 g, this rim is intended for builds that balance low weight and structural durability and can be used with clincher or tubeless tire setups.

Advantages

The GRX25P offers a relatively light construction for a gravel rim while providing a standard 26.3 mm bead seat and 622×25 cross-section that supports a wide range of 700C tires. Its 32-hole drilling provides a common compromise between strength and wheel buildability, and the disc-brake-compatible design removes the need for a braking surface on the rim, simplifying rim construction and compatibility with disc hubs. The black finish is neutral and suitable for many wheel builds.

Suitable for

• Gravel bikes and mixed-surface touring where 700C wheels are desired
• Wheel builders seeking a 32-hole rim for moderate-strength, lightweight builds
• Clinchers or tubeless tire setups that fit a 622×25 profile
• Disc brake hub systems that do not require rim brake surfaces

When it may not be suitable

This rim is not intended for rim-brake bicycles because it lacks a braking surface; it is specifically designed for disc brake systems. For very heavy riders, aggressive off-road use or e-bike applications, a rim with a heavier-duty construction or higher spoke count may be more appropriate than a 32-hole, ~507 g rim.

Key specifications

• Wheel diameter/profile: 700C (622×25)
• Bead seat diameter: 26.3 mm
• Spoke holes: 32
• Brake type compatibility: disc brake
• Finish/color: black
• Weight (listed): 507 g
• Tire compatibility: clincher or tubeless setups suitable for 25 mm internal profile

How to use

Install the Alexrims GRX25P on a compatible disc brake hub using proper spokes and nipple lengths for a 32-hole wheel build. Follow standard wheel-building procedures including correct spoke tension, truing and stress-relieving. When setting up tubeless tires, use an appropriate rim tape, a tubeless valve and sealant compatible with your chosen tires. Inflate to manufacturer-recommended pressures for your tire and riding conditions, and check wheel dish and spoke tension after initial rides.

What to consider before purchase

• Confirm your hub and axle standard are compatible with a disc brake rim build.
• Verify tire width compatibility with the 622×25 profile and the expected bead seat dimension.
• Consider whether a 32-hole rim and 507 g listed weight meet your strength and durability requirements for intended riding style.
• Decide if you will run clincher or tubeless; ensure you have proper tape, valves and sealant for tubeless conversion.

Usage recommendations

Use the GRX25P in gravel and mixed-surface wheel builds with quality spokes and correct tensioning. For tubeless setups, run recommended sealant and check for airtight seating before taking the wheel off-road. Re-check spoke tension and rim condition periodically, especially after the first few rides and after rough terrain.