6902 BKCoating Ceramic Bearing (15x28x7mm) - The Ultimate Hub Performance Upgrade
Unlock the full potential of your wheelset with the 6902 BKCoating Ceramic Bearing. As a popular upgrade for high-performance front and rear hubs, this bearing is engineered to deliver superior rolling efficiency and all-weather durability, ensuring your wheels spin faster and longer.
-
✔Maximum Rolling Efficiency: G5-grade ceramic balls provide a smoother, harder surface than steel, significantly reducing friction. This translates to higher speeds and longer coasting distances for your hubs.
-
✔Robust & Weather-Resistant: The BKCoating protects the bearing races from corrosion caused by water and mud. The 6902's larger ball bearings and sturdier construction provide a higher load capacity than similar-sized bearings, ideal for the stresses of a wheel hub.
-
✔Precision Hub Fit: Manufactured to the exact
15x28x7mm standard, the 6902 is a common bearing size found in many high-end hubs from popular brands like Mavic and Hope. -
✔The Professional's Choice: When seeking a tangible upgrade in hub performance, replacing stock bearings with CRODER's 6902 ceramic model is a proven choice for competitive cyclists.
Specifications
| Item | Specification |
| Inner Diameter (ID) | 15mm |
| Outer Diameter (OD) | 28mm |
| Width | 7mm |
| Model | 6902 |
| Ball Material | Grade 5 (G5) Silicon Nitride (Si3N4) |
| Coating Technology | BKCoating Anti-Corrosion Coating |
Hub Compatibility & Identification
The 6902 is one of the most common bearing sizes for high-performance road and mountain bike hubs. It is frequently used by well-known brands such as Mavic and Hope. However, hub designs vary greatly, so it is crucial to confirm your existing bearing's size before ordering.
Frequently Asked Questions (FAQ)
Q: What is the difference between a 6902 and a 6802 bearing?
A: This is a very common question. While both share the same 15mm inner diameter, the 6902 (15x28x7mm) is larger and more robust than the 6802 (15x24x5mm). It has a larger outer diameter and is wider, allowing for larger ceramic balls and a stronger structure. This gives the 6902 a higher load capacity, making it suitable for hubs that demand greater stiffness and durability.
Q: How do I know what size bearing my hub needs?
A: The most reliable method is to carefully remove the old bearing from your hub. The model number (e.g., "6902") is usually printed on the rubber seal. If the number is worn or unreadable, use a digital caliper to accurately measure its inner diameter, outer diameter, and width.
Q: Will this 6902 bearing fit my Mavic hub?
A: The 6902 is a standard size used in many Mavic wheelsets, particularly front hubs. However, Mavic uses various bearing sizes across their extensive product line. To guarantee compatibility, you must confirm the specific model number on your hub's original bearing before purchasing a replacement.
Q: What does "2RS" mean and how does your bearing compare?
A: "2RS" stands for "Two Rubber Seals". While 2RS bearings offer good protection, the rubber seals add friction. Our BKCoating bearing is designed for maximum performance by relying on a hardened, corrosion-resistant surface treatment for durability. This approach minimizes drag while still providing excellent protection from the elements, making it a true performance upgrade.
