Bike Forums - View Single Post - Need help with a BB shell with no threads

11-02-21 | 08:12 PM

#27

verktyg

verktyg

Joined: Jul 2006

Posts: 4,034

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From: SF Bay Area

Bikes: Current favorites: 1988 Peugeot Birraritz, 1984 Gitane Super Corsa, 1980s DeRosa, 1981 Bianchi Campione Del Mondo, 1992 Paramount OS, 1988 Colnago Technos, 1985 RalieghUSA SBDU Team Pro

Threadless BB

Note the burrs pushed up at the inner ends of the "splines". This suggests that the BB was pressed in and never intended to be removed or serviced.

The BB shell looks like it's made of cast aluminum

Could be soft cast steel but???

Bikes like the Bridgestone Kabuki Submariner had the tubes cast into aluminum "lugs" and BB.

Any guess as to why the original BB was removed???

Maybe some one parted out the frame like the fools on eBay who disassemble cheap steel rim wheels and try to sell the spokes individually! DOH!

verktyg

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Last edited by verktyg; 11-02-21 at 08:16 PM.

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