I like working on my bikes. I will do whatever I can. But I know the time is coming on my Trek that I will probably have to pay the man. Maybe not so much because of the time or skills required, but because I don't know that I want to buy the tools.
My 40 or so year old bikes however I can't see me not working on. I just refurbished a '67 Schwinn for someone that may be older than the man at a lot of bike shops.
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"It is the unknown around the corner that turns my wheels." -- Heinz Stücke