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How does one measure a frame and rack for compatibility?

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How does one measure a frame and rack for compatibility?

Old 11-23-15, 07:16 PM
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How does one measure a frame and rack for compatibility?

A friend, who lives in another town, asked my advice on bicycle racks. He has a 29-inch wheel bicycle. I told him I was happy with my 20-year-old Blackburn. Comparing it to some he pointed out to me on Amazon I faulted them for attaching to the seat post and having more moving parts (my Blackburn is a single piece of aluminum that attaches to brazeons in the seat stays and dropout.)

I fear that added bending moment on the seat post endangers the seat tube and doesn't provide as much stability as a 2-point attachment and that stays and clamps and adjustable parts increase the number of screws that can rattle loose, that clamps can slip, etc.

How do I tell him to measure his bike to see if a single-piece model such as mine will fit? Does anything matter other than the distance between the brazeons on the stays and those on the dropout?

Any other advice?
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Old 11-24-15, 10:25 AM
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Shop In Person in a Bike Shop, and test fit the rack on the Bike .. You cannot do that with Amazon ..
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