Enduro CO 6804 20mm x 32mm x 7mm Hub Bearing - 20mm - 32mm - 7mm - ABEC-5 Ceramic Radial Bearing - Black Oxide Back in Stock but can be powered by

but can be powered by a separately sold battery

Weight: 340g (Med)

Strava Live Segments and phone notifications (incoming calls

Convertibility: These can convert to Boost QRx141 but only with adaptors (sold separately)

This allows you to fine tune the fit

Enduro CO 6804 20mm x 32mm x 7mm Hub Bearing - 20mm - 32mm - 7mm - ABEC-5 Ceramic Radial Bearing - Black Oxide Back in Stock but can be powered byCO 6804 VV Enduro Zero, Black Oxide, Ceramic Hybrid, ABEC 5, radial bearing (C3 clearance) 20 x 32 x 7mm Enduro Zero, Ceramic Hybrid, ABEC 5, radial bearing featuring black oxide treated 52100 high Carbon Chromium alloy races paired with Grade 5 Silicon Nitride Ceramic balls with 90% fill, high pressure, water proof grease. Si3N4 ceramic balls reduce bearing wear and increase bearing life by eliminating steel on steel contact within the bearing. Black