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Old 01-13-22, 08:30 AM
Freewheel Medic
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Join Date: Oct 2005
Location: NH Mountains NW of Concord & Mid-GA Coast!
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Bikes: Snazzy* Schwinns, Classy Cannondales, & a Lonely '83 Santana Tandem (* Ed.)

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The only way to determine if the threading is BSO or French is to remove the freewheel and take a look at the underside of the freewheel at the markings. Or take a known French threaded BB cup and check to see if it threads into the freewheel body.

The FR-4 tool is the correct one for removal.
Dreaming about riding in NH's summertime while enjoying the GA coast for the remainder of the year!

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