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Archive for November 25th, 2018

Badger Propel Air Fittings: DIY Rubber Washers

Unlike ordinary bike tubes, Michelin ProTek tubes have a square-ish cross section:

Michelin Protek Max Tube - carton

Michelin Protek Max Tube – carton

So, having a defunct Michelin ProTek tube in hand, I cut, cleaned, and dissected a few inches, then punched out a set of (flat!) washers for the Badger Propel air fittings:

Badger 260 Propel fitting seals - inner-tube version

Badger 260 Propel fitting seals – inner-tube version

As with the cork version, they fit fine:

Badger Propel fitting - DIY rubber seal

Badger Propel fitting – DIY rubber seal

The picture is slightly fuzzy, because zooming a Pixel photo doesn’t magically create any new¬†mmmm pixels.

I tested the washer with 45 psi air (the recommended maximum) and it holds the pressure fine. Better than a fouled ProTek valve, anyway.

Flushed with success, I preemptively replaced both OEM cork washers, an action which will surely come back to haunt me.

 

 

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