FLIP FLOP ALLOY FRONT AND REAR HUB SET SEALED BEARINGS FIXIE BIKE WITH SPROCKETSBUILD YOUR OWN FIXIE WHEEL SET WITH THIS NEW PAIR OF POLISHED ALUMINIUM HUBS WITH SEALED BEARINGS, SUPPLIED WITH A CHROME LOOK FREEWHEEL AND FIXED SPROCKETFRONT AND REAR SEALED BEARINGS FOR SMOOTHER RIDE36 HOLE ALUMINIUM MACHINED HUBS38mm PCD (HUB DIAMETER) FRONT, 100mm OVER LOCK NUT44mm HUB DIAMETER REAR, WITH 120mm O.L.D16T X 1/8 CHROME FIXED SPROCKET AND LOCKNUT16T FREEWHEEL3/8AXLE SIZEWEIGHT 540grams