Mavic P-21 Disc Rim - 29 Inch
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Product Information
Full details
The Mavic P-21 Disc Rim is an ideal choice for road cycling enthusiasts and mountain bikers seeking a balance between durability and performance for 29-inch wheel builds. Engineered for versatility, this high-quality alloy rim provides a robust foundation for disc-braking systems, making it a reliable upgrade or replacement option; however, users should ensure their hub configuration matches the specific spoke hole count to guarantee compatibility with their existing wheel build.
All features
| Model Part Number | MVR26701 |
|---|---|
| Brand | Mavic |
Extended Product Information
FAQs
Is this rim compatible with rim brakes?
No, this is a disc-specific rim and does not feature a machined braking surface for rim pads.
What is the spoke bed diameter for this rim?
The spoke bed diameter is 589 mm.
Can I use this for mountain biking?
Yes, it is designed for 29-inch wheels, making it suitable for cross-country and general mountain biking use.
What is the rim height?
The rim features a height of 25 mm.
How many spoke holes does this rim have?
Availability varies by model; please verify the specific spoke count (e.g., 24H) on your packaging before starting your build.
Troubleshooting
Difficulty calculating spoke length
Ensure you are using 589 mm as your base measurement for the effective rim diameter during your calculation.
Spokes feel loose after first ride
This is normal for a new wheel build. Take the wheel to a professional mechanic for a 'de-stress' and re-tensioning.
Brake rub on disc calipers
Check that the wheel is correctly seated in the dropouts and perform a standard caliper alignment procedure.
Pros and Cons
Pros
- Durable alloy construction for long-lasting use
- Excellent stiffness-to-weight ratio
- Optimized specifically for modern disc brake setups
- Consistent rim profile for stable handling
Cons
- Not compatible with rim brake systems
- Requires specific spoke length calculation due to 589 mm ERD
- Limited to 29-inch wheel size applications
Setup, Compatibility & Care
To ensure a successful build, verify that your hubs feature the same spoke hole count (e.g., 24H) as your specific rim variant. When lacing the wheel, use the 589 mm spoke bed diameter as the basis for your ERD (Effective Rim Diameter) measurements to calculate correct spoke lengths. For care, avoid using corrosive cleaning agents on the alloy surface. Periodically inspect the spoke nipples for tension loss, especially during the 'break-in' period of a new wheel build. Keep the disc rotor mount area clean and free of debris to ensure your brake calipers operate silently and effectively.