Fitting new bearings to a headset is easy as they just slip in with no pressure. What I have done on several occasions is replaced the cups that the bearing sit in. These cups need to be pressed into the frame.
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| Finished result |
In the past I have cobbled together washers and other bits to form a makeshift press and struggled to get the cups in straight. I have tried to buy a correctly sized press for the cups but have been unable to find ones that are the right size. I can only assume that very few people ever remove the cups. They rarely wear out. It is only when I am painting a frame that I remove them.
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| Lower cup first |
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| Pressing against the headtube |
As covered in a previous article, I made suitable presses with my new lathe.
I am very pleased to say that the presses worked perfectly. The cups pushed into place completely square first time.
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| Upper cup last |
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| Pressing against the lower cup |
It just goes to show how much easier jobs are with the correct tools.
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