Enduro 6903 - 61903 17 x 30 x 7mm Bearing
Description
Enduro Standard Abec 5 are premium replacement bearings. These are great for hubs, pedals, and bottom brackets.
ABEC 5 bearings feature:
- Grade 5 Chromium Steel Balls.
- In spec to 5/1,000,000″ (military grade)
- 52100 High Carbon Chromium Alloy Races .
What's the difference between ABEC 3 and ABEC 5?
ABEC is an acronym for a committee that sets standards for bearings. Higher numbers mean higher tolerances (and price). For example, ABEC 3 balls are in tolerance to 10/1.000.000" vs. 5/1.000.000" in the ABEC5.
How does this affect me?
Higher tolerance bearings are smoother and faster. With precision, the balls will support the bearing better and increase life expectancy.
To find the correct bearing, please check your owner's manual. These are premium bearings that are among the longest lasting available, however bearing life is dependent on factors such as weather, maintenance, and installation. Please use correct installation methods and follow your component's torque specifications. Failure to do so will result in premature bearing wear.
Reviews
Fixed hub and wheel play, smooth
by Christian
Fixed hub wobble and replaced Newmen Hub bearings. Highly recommended.
Smooth as butter
by Ben Fenson -
Replaced my rear wheel bearings after a few to many muddy rides.
Solid and rolls so smooth now.
Great bearing but be careful on sizing, not all 6903s are alike.
by David
These are 6903 LLB bearings internal diameter is 17mm as stated. If you need 6903 LST DO NOT get these. 6903 LST are 18mm internal diameter, not 17mm like these.
FASTER THAN YOU
by Mat
If you want to ride faster than your mates. or set some new KOM’s. Get some new bearings. What’s the point of all that other fancy, expensive equipment if your bearings are MUNTED.
Ratings & Reviews
4 reviews
Fixed hub and wheel play, smooth
by Christian
Fixed hub wobble and replaced Newmen Hub bearings. Highly recommended.
Smooth as butter
by Ben Fenson -
Replaced my rear wheel bearings after a few to many muddy rides.
Solid and rolls so smooth now.
Great bearing but be careful on sizing, not all 6903s are alike.
by David
These are 6903 LLB bearings internal diameter is 17mm as stated. If you need 6903 LST DO NOT get these. 6903 LST are 18mm internal diameter, not 17mm like these.
FASTER THAN YOU
by Mat
If you want to ride faster than your mates. or set some new KOM’s. Get some new bearings. What’s the point of all that other fancy, expensive equipment if your bearings are MUNTED.
Specifications
| Item | Barcode |
| Enduro 6903 - 61903 17 x 30 x 7mm Bearing | ENDBR690361903 |
| ABEC 5 Bearing | 810191011835 |
| MAX Full Complement Bearing | eb6903max |
| Standard ABEC 3 Bearing | 810191012511 |