Thread: What Is Function of This Bolt On Seat Post???
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Old 12-01-14 | 06:41 PM
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Kactus
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From: Tacoma, WA

Bikes: 1962 Schwinn Paramount P12, 1971 Schwinn Paramount P13-9

Originally Posted by Murray Missile
Oval head machine screw, given how well the head fits in the countersink in the outer tube I'd say definitely factory installed, not a backyard patch job.
Either factory or a skilled amateur.
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