The Arise Echo Front Hub is a super lightweight race-spec front hub with oversize bearings for stiffness and reduced rolling resistance Designed to match the style and shape of the Arise Echo Cassette Hub. Material: 6061-T6 alloy refined hub shell Axle: fits 20mm thru axle or 10mm female axle (not included) Size: 100mm OLD Spoke Holes: 28h or 36h Measurements: PCD: 47mm, flange offset 34.25mm Weight: 175g (6.0oz) - w/o axle285g (10.0oz) - w/ 10mm female axle and bolts Bearings: 2x 6804-2RS bearings (20 x 32 x 7 mm) Features: • super light weight race-spec front hub• larger oversize bearings for reduced friction and low rolling resistance• compatible with 20mm thru-axle or 10mm female axle (not included)• 28h or 36h options• custom volcano bolts with deep set hex wrench• DOES NOT include axle, thru axle size must be selected and added separately