ABI Enduro ABEC5 sealed stainless steel bearings complete kit for Extralite Hyper series hubs (HyperBoost F, HyperBoost R, HyperFront, Hyper JF, HyperRear1&2, HyperCamber1&2 e Hyper JR). Stainless steel bearings will last longer due to their better corrosion resistance.
Include 6 bearingsi :
- (2x) 6803 2RS for front hub
- (2x) 6803 2RS for rear hub
- (2x) 6903 2RS for rear hub
ABI Enduro ABEC5 are high quality bearings, made in the USA, specific developped for offroad use. Their double labyrinth seals assure extreme protection from mud, water and dust combined with a smooth action that not increase rolling resistance.

440C Stainless Steel Balls are within 5/1,000,000″ round. These are military level specification, used for precision equipment. R-64 hardness, of the highest grade.
Also Races are made of 440c stainless steel, polished to a mirror finish for ABEC-5 precision and noiseless movement. Nylon with graphite retainers are virtually frictionless while providing constant lubrication
To meet the ABEC-5 standard, bearing design must pass all tests, which include noise testing at high RPM, extremely close tolerances for I.D. and O.D., roundness of ball, trueness of the races and micro surface finishes of balls and races.
This specification describes the internal clearance between the bearing and its race. For example, in a 10-18 I.D. bearing, our standard is 11-21 micrometers where as others use 11-25 micrometers.
All across the board, Enduro Abec5 bearings have higher standards of tolerance, to ensure superior performance.
Top quality hubs like Extralites require top quality bearings like Enduro ABEC5!
Weights 16 gr. (front) + 50 gr. (rear)
