Old 04-14-15 | 10:54 PM
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Scratcher09
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Joined: Jul 2014
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From: San antonio

Bikes: '80 Miyata 210, '05 Fuji Team Issue, '75 Motobecane Nomade Sprint, 2010 BMC Racemaster, '77 Raleigh Grand Prix, '83 Raleigh Marathon

Raleigh threaded hole in underside of downtube

I am refurbishing a 1983 Raleigh Marathon. I discovered a threaded hole (like the ones for a water bottle cage) on the underside of the down tube. It is higher up that the ones for the cage. What is the purpose of this threaded hole?
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