Enduro 6704 20 x 27 x 4mm Bearing - Standard ABEC 3 Bearing YGroup_7033406193709 using a polish that shines

using a polish that shines and protects

Dirtsurfer has an environmentally sound ethos and designed the mudguards and the packaging to be 100% recyclable

grime and chain oil in seconds

Concave flat side allows for use with cleats

Enduro 6704 20 x 27 x 4mm Bearing - Standard ABEC 3 Bearing YGroup_7033406193709 using a polish that shinesEnduro Standard Abec 3 are great replacement bearings for hubs, pedals, and bottom brackets. Grade 10 Chromium Steel Balls. In spec to 10 1. 000. 000 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" found in the