Gultnis – Enduro Bearings 63803 LLB ABEC 3

11,83 

17x26x7 mm, used as a hub bearing for some hub designs, but more often is used as a pivot bearing

Gultnis – Enduro Bearings 63804 LLB ABEC 3

9,75 

20x32x10 mm, bearing for some hub designs, but more often is used as a pivot bearing

Gultnis – Enduro Bearings MR 27537 LLB ABEC 3

11,82 

27.5x37x7 mm, used as a front hub bearing, specifically in SRAM Predictive Steering front hubs for the RS-1 suspension fork.

Gultnis – Enduro Bearings 6807 LLB ABEC 3

13,23 

35x47x7 mm, used as a hub by Bontrager and has been used as a headset bearing by Pinarello and Black Spire.

Gultnis – Enduro Bearings 6001 2RS-8 ABEC 3

10,08 

1/2″(27)x28x8 mm, quick-release hub designs but is more often used in wheelchairs

Gultnis – Enduro Bearings 3001 LLU ABEC 3 Double Row

13,80 

12x28x12 mm bearing for some quick-release hub designs and has been used by Rocky Mountain as a suspension pivot bearing.