Old 11-15-10, 03:16 PM
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southpawboston
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i'm pretty sure those are whitworth threaded. are you missing both? let me check my DL1 parts box and see if i have a couple of extras...

also, the threads are not in the frame itself, but in female sleeve bolts (is that a term?) that sit flush against the inside of the chainstay... kind of like chainring bolts.
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