Technical & Reference Section > Tech and Restoration

bottom bracket

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pmk:
would this be of any use ......http://www.ebay.co.uk/itm/320786952467'ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

HEYWOOD BMX:

--- Quote from: pmk on March 22, 2013, 04:46 PM ---will i need 19 or 22 mm ?

--- End quote ---

 Neither.A sealed BB for a 1 pc crank is a standard size,approx 23.8mm.The BB in your link is a bog standard unsealed jobbie.

pmk:
ok would this fit in an 83 ta frame ?   .....    http://www.ebay.co.uk/itm/USA-CRUISER-OPC-BOTTOM-BRACKET-SET-FOR-CRUISER-BIKES-EARKY-MTB-WITH-OPC-BB-SET-/181099868375?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item2a2a64b0d7 ,

MartyC:

--- Quote from: pmk on March 22, 2013, 05:01 PM ---ok would this fit in an 83 ta frame ?   .....    http://www.ebay.co.uk/itm/USA-CRUISER-OPC-BOTTOM-BRACKET-SET-FOR-CRUISER-BIKES-EARKY-MTB-WITH-OPC-BB-SET-/181099868375?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item2a2a64b0d7 ,

--- End quote ---

Yes but the seller does not state if it is a 24tpi or 28tpi thread and that would depend on what your cranks are.

pmk:
sugin one peice

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