This post is brought to you by a combination of poor planning and procrastination. For some time I knew the chain and cassette on my commuter bike were getting pretty worn: I’m not sure I changed them when I bought the bike about six years ago and they’ve done a fair bit of distance since, but they were still just about working so I decided to leave them until winter when I’d put a new chain on and put on the winter wheel with an equally new cassette. Of course, I’d actually said this about a year ago, but hey, the problem wasn’t urgent so I kept forgetting.

Fortunately the chain and cassette wear together, so I could get away with ignoring the problem as long as I didn’t change any components. So of course when I swapped my winter and summer wheels without thinking, the smallest (ie top) gear began to slip. I ignored it for a bit until the next one started to do the same and I realised I’d have to do something.

Most modern(ish) cassettes are held on with a locking ring that has ridges on it to stop it rattling loose, so the one thing you don’t want to do is make it very tight. Unfortunately whoever had put this lock ring on had not been told this as I discovered when I failed completely to move the ring at all.

The usual way of dealing with an over tightened ring is to clamp everything down firmly, and use a piece of tube on the cassette removing tool to gain more leverage. This in theory results in a clicking noise and a loosened cassette.

In my case it resulted in a loud snap and a broken removing tool.

Situations like this are why we have Bakfietsen. Off we went to the bike shop in the next town, where the mechanic applied a professional removing tool to the wheel. This didn’t work, so he called a colleague over to help. Eventually it took both of them and a length of what looked like scaffolding before the lock ring gave up. Now we have the new cassette on, new chain on, and I’ve got a commuter bike again…

Now, will I learn from this experience and get to grips with maintenance before it all goes to pot again?

Advertisements