hopper Lincoln Imp

General cycling advice ( NOT technical ! )
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Jeff the Old
Posts: 2
Joined: 2 Dec 2017, 2:54pm

hopper Lincoln Imp

Post by Jeff the Old »

A friend is restoring a Hopper Lincoln Imp, he thinks of 1950 ish vintage. He assumes a cotter bottom bracket. Does any one know the dimensions of the axle. the size of cups, the thread used and TPI.

Thanks

Jeff
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