Any tips for installing traditional threaded cogs on track hubs?
To start with ensure all threads are perfectly clean; on hub, cog and lockring. Lightly grease the hub threads and start the cog by hand. If it does not go on with the lightest effort back off and start again ensuring it is not cross-threaded. Spin the cog right up to the hub shoulder and using a chain whip crank it up really tight. Repeat with the lockring and tighten securely with a lockring tool, remember the lockring has a left-hand thread and tightens anti-clockwise. Now go ride round the block and up a few steep bits cranking good and hard. You should find the cog has tightened up some more so you will need to re-tighten the lockring. Check it from time to time. Always use a well fitting tool to avoid damage to the lockring notches. As well as the traditional method of installing cogs there is an alternative known as ‘rotafix’ – a Google search will bring up more on this. If rotafixing though take care not to over-tighten things.
