Enduro Bearing 15x21x4mm
What Is It?
The Enduro Bearing 15x21x4mm is a precision sealed cartridge bicycle bearing used in various high-performance cycling applications such as suspension pivots, hub internals, bottom brackets (in some systems), and frame linkage systems.
It is manufactured by Enduro Bearings and designed for smooth rotation, high durability, and resistance to contamination, especially in MTB conditions.
Key Features
- High-precision sealed cartridge bearing
- Compact 15 x 21 x 4 mm size for tight frame applications
- Sealed design protects against dirt, water, and mud
- Smooth rolling performance with low friction grease
- Designed for MTB suspension pivots and linkage systems
- Durable steel construction for long service life
- Pre-greased for immediate installation
- Suitable for high-load cycling applications
Specifications
| Specification |
Details |
| Brand |
Enduro Bearings |
| Product |
Sealed Cartridge Bearing |
| Size |
15 x 21 x 4 mm |
| Bearing Type |
Deep groove sealed cartridge |
| Material |
Chrome/steel alloy (varies by series) |
| Seal Type |
Rubber sealed (dual-lip design typical) |
| Lubrication |
Factory pre-greased |
| Application |
MTB suspension pivots, linkages, select hub systems |
| Maintenance |
Low maintenance / replace when worn |
Who Is It Suitable For?
- Mountain bikers (XC, trail, enduro, downhill)
- E-MTB riders
- Bicycle mechanics and workshops
- Riders servicing full-suspension frames
- Cyclists replacing worn pivot bearings
- Performance MTB enthusiasts
Who Should Use It?
- Riders experiencing play or rough movement in suspension pivots
- Mechanics performing frame rebuilds or bearing refreshes
- Enduro and downhill riders needing reliable suspension performance
- E-bike riders under higher torque and load stress
- Cyclists riding in wet, muddy, or dusty conditions
- Anyone maintaining high-performance MTB frames
