Enduro 6903 Sealed Cartridge Bearing

Enduro 6903 Sealed Cartridge Bearing Enduro

Enduro 6903 Sealed Cartridge Bearing

Enduro 6903 Sealed Cartridge Bearing

Enduro logo

Is the Enduro 6903 the Right Standard Bearing for Your Pivot?

The Enduro 6903 Sealed Cartridge Bearing is built to Enduro's standard design spec, delivering reliable performance in the 17mm x 30mm x 7mm form factor found across a range of suspension pivot, headset, and hub applications on road and mountain bikes. Mobilux NGLI 2 synthetic grease at a 90% fill ensures consistent lubrication through the bearing's service life. Dual-lip labyrinth seals provide solid protection against dirt and moisture ingress while keeping drag to a minimum.

Compared to the Enduro Max 6903, this standard version is better suited for lower-stress applications such as headsets and hub flanges where the multi-directional forces of active suspension are not a factor. Enduro's precise manufacturing tolerances ensure a clean press fit and reliable operation over a full riding season. For mechanics looking for a straightforward, correctly-spec 6903 cartridge bearing at an accessible price, this is the one.

$8.25
$8.25
Shipping calculated at checkout.

7 in stock

  • Orders over $100 ship free!
  • Estimated delivery: Jun 08 - Jun 12

Ask a question

The fields marked * are required.

more details:

Enduro logo

Specifications

  • Bearing Number: 6903
  • Inner Diameter: 17mm
  • Outer Diameter: 30mm
  • Width: 7mm
  • Series: Standard Design
  • Seal Type: Dual-lip labyrinth
  • Grease: Mobilux NGLI 2 synthetic (90% fill)
  • Application: Headsets, hubs, lower-stress pivots

FAQ

When should I use the standard 6903 vs the Enduro Max 6903?

Use the standard 6903 for headsets, hub flanges, and lower-load pivot positions. Choose the Max 6903 for suspension pivots that see heavy lateral loading, where the full-complement design and deeper race grooves provide meaningfully better durability.

What bikes commonly use a 6903 bearing?

The 6903 (17x30x7mm) appears in headset cups, rear hub flanges, suspension linkage pivots, and some pedal axle designs across a wide range of road, gravel, and mountain bikes.

How do I install a cartridge bearing correctly?

Always press bearings in using a tool that contacts only the outer race. Never hammer directly on the bearing or press through the balls. A bearing press or appropriately-sized socket makes a clean, square installation that won't damage the bearing on the way in.

Best For

Mechanics doing routine headset or hub bearing replacements where the original bearing was a standard 17x30x7mm design. The Enduro 6903 is an affordable, correctly-spec replacement for non-pivot applications where a premium Max bearing is more than the job requires.

Enduro 6903 Sealed Cartridge Bearing Reviews:

You may also like