Enduro MR 17287 17 x 28 x 7mm Bearing - ABEC 5 Bearing Back in Stock reduces friction and considerably lowers

reduces friction and considerably lowers the force needed for easy breakaway in the initial stroke of travel

the waterproof inner bag will enable you to keep the contents completely dry and its built in air release button allows you to draw air out of the bag to ensure it is always as compact as can be

Sweep: 7° backsweep

No more grimacing when you bash your crank arms on rough trails

- Trainer is pre-assembled and ready to ride

Enduro MR 17287 17 x 28 x 7mm Bearing - ABEC 5 Bearing Back in Stock reduces friction and considerably lowersEnduro Standard Abec 5 are premium replacement bearings. These are great for hubs, pedals, and bottom brackets. ABEC 5 bearings feature: Grade 5 Chromium Steel Balls. In spec to 5 1,000,000 (military grade) 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