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-   -   Anyone know a lot about IRD/Tange-Seiki cartridge-bearing BBs? (https://www.bikeforums.net/classic-vintage/760644-anyone-know-lot-about-ird-tange-seiki-cartridge-bearing-bbs.html)

Charles Wahl 08-16-11 07:11 PM

Anyone know a lot about IRD/Tange-Seiki cartridge-bearing BBs?
 
1 Attachment(s)
(crossposted to Mechanics)

http://bikeforums.net/attachment.php...hmentid=214883

I've had 3 of them, the first (IRD) had "cups" that slid off both sides, and the 2nd (IRD) and 3rd (Tange-Seiki) each have a fixed cup that doesn't seem removable. That's OK if you're needing a BB for an English-threaded frame, but IRD now sells cups for Italian, French and Swiss threading; so I want to get that cup off. Anybody know how to do that without doing violence to the cartridge bearing? I believe that The IRD and Tange-Seiki flavors are pretty identical, at least the adjustable-side cups from IRD fit perfectly on a Tange-Seiki.

unworthy1 08-16-11 09:57 PM

if the threads are on the body itself, that's not a "removable" cup, you won't get it off. Thankfully the old style with the center barrel and 2 removable cups is making a come-back.


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