Hub Spares - Hub maintenance is essential for the smooth running of your hubs and freehub, at Fatbirds we try to list as many hub spares as possible to enable you to maintain your wheels. We list axles, bearings, freehubs, spacers, pawls and even the circlips, from a range of the most popular brands. We also have a large range tools, lubes, grease and degreasers to enable you to carry out the work.