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Dixon Plated Iron Double Bolt Clamps w/ Saddles - 5-15/16 in. to 6-1/2 in. Hose OD - John M. Ellsworth Co. Inc.
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What is the proper way to tighten dual bolt saddle rail clamp to stop rail slippage? - Bicycles Stack Exchange
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Today I learn there are three types of saddle clamp. I have the traditional one, no matter how hard I tighten the bolt, seat tend to move upward and downward when I
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