Enduro - Bearing 6805LLB ABEC3 Mantenance the XG-1299 cassette also allows

the XG-1299 cassette also allows stronger riders to increase their chainring size if they want

Vacuum de-gassing process for the purest chromium alloy steel

Flattop technology allows for a narrower chain with quieter operation and increased strength and durability

Even the best optics on earth can be compromised by dirt

Enduro - Bearing 6805LLB ABEC3 Mantenance the XG-1299 cassette also allowsABEC 3 radial bearing with 25 mm inner diameter, 37 mm outer diameter, 7 mm thickness and double lip type sealing with light contact, making a labyrinth seal. ABEC 3 bearings use grade 10 Chromium Steel Balls and 52100 High Carbon Chromium Alloy Races. The high precision balls are within 10 1. 000. 000 round, twice as round as the industry standard, at it's highest level. The alloy races are made from a vacuum de gassed process for the purest chromium