Technical & Reference Section > Tech and Restoration

BB help

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Dark Diggler:
Here's the problem, just got a mirra pro frame off bmxmatt  :daumenhoch: and got my new euro bb out of its box and realised there are no threads on the inside of the bb shell, infact it looks too big to house the tiny screw in bb cups, Am I missing something, Matt confirmed it was a euro bb before I bought one, I am confused (dunt take much) here's a pic that hopefully will clear things up ???  All I can think is that I am missing some cups that the bb screws into


I have only ever done us so everything else is a bit alien
Is there a guide to shell size/bb needed ?
HELP  :daumenhoch:

snav69:
Is it not a spanish bb  :-\ , dunno what one is i just know there is one  :crazy2:

snav69:
Dunno if this is anygood to ya'  ???

Dark Diggler:
could be I spose Snav but Matt said Euro, winstanlys are saying euro on the bike specs, I ordered a euro from custom riders.....What could go wrong  :LolLolLolLol:

This is why a shell size/bb guide  would be a usefull tool,

Mystery ah tell thee  :D

snav69:
See if you can measure the cup to see if it takes a 37mm bearing
http://www.flybikesbmx.com/noticias/spanishbbeng.htm

Fingers crossed eh  ;)

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