Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Bikes: Old Steelies I made, Old Cannondales
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I make o-rings out of squishy foam like you would find in cushions. Sometime I come across a sheet of it from packing material that's just the right thickness. Cut out a circle, then cut a little hole in the middle and slide it over the axle before putting on the crankarms. They do a great job of keeping dirt out of the BB.
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike