Save its worth in trousers!,
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This review is from: Sks Chainboard Hub/Chain Universal (Design: Silver/46-48 Teeth) (Sports)
Over the years I've spent so much on replacing oily trousers and bike clips. Now I don't bother with either thanks to this. To fit it you need to take the bottom bracket off. Fitting it is not for the faint hearted, I needed special bike tool to do it.