ABI Enduro ABEC5 sealed bearings complete kit for Extralite Hyper series hubs (HyperBoost F, HyperBoost R, HyperFront, HyperLefty, Hyper JF, Hyper JL, HyperRear1&2, HyperCamber1&2 e Hyper JR).
Include 6 bearingsi :
- (2x) 61803 SRS for front hub standard or (1x) 61805 SRS + (1x) 61902 SRS for front hub Lefty
- (2x) 61803 SRS for rear hub
- (2x) 61903 SRS for rear hub
Front Lefty hubs require specific bearings with a different size than standard ones, so remember to choose Lefty option when adding to cart.
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.
Grade 5 Chromium high precision 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.
52100 High Carbon Chromium Alloy Races Vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable. 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 15,3 gr. (front*) + 47,8 gr. (rear) *standard version
Weights 35,5 gr. (front**) + 47,8 gr. (rear) *Lefty version
