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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Bet way to remove opc BB cups and headset race...?
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Author Topic: Bet way to remove opc BB cups and headset race...?  (Read 758 times)

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Offline freshuk

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Bet way to remove opc BB cups and headset race...?
« on: June 23, 2014, 12:23 PM »
Built a couple of bikes, but never stripped down a frame and forks for paint, what's the best way to get bb cups and headset races out of a frame....guessing a hammer is needed at some point? ???

Offline MartyC

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #1 on: June 23, 2014, 12:38 PM »
BB and Headseat cups need 1 x  hammer and a drift, an old steel seatpost makes a good drift, place behind cups and hit, then move drift to the oppsite side of the cup and repeat until out.

Fork race needs 1 x hammer and a wide, flat bladed screwdriver, same principle as above, tap around from one side to the other until it comes off.


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Offline freshuk

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #2 on: June 23, 2014, 12:58 PM »
Nice one, kind of thing I had in mind, just wanted confirmation, cheers!

Offline That Swan Guy

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #3 on: June 23, 2014, 01:09 PM »
BB and Headseat cups need 1 x  hammer and a drift, an old steel seatpost makes a good drift, place behind cups and hit, then move drift to the oppsite side of the cup and repeat until out.

Fork race needs 1 x hammer and a wide, flat bladed screwdriver, same principle as above, tap around from one side to the other until it comes off.

As above, using a metal headed hammer as it will have far more 'shock' impact than a heavy rubber or plastic head :daumenhoch:
Who wants to ride with Eddie Fiola?

leehunt1

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #4 on: June 23, 2014, 01:32 PM »
when putting cups in a frame.. stick them in the freezer for a few hours and it will shrink them so easy to fit

Offline freshuk

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #5 on: June 23, 2014, 01:53 PM »
Cheers fellas, will bear that in mind.

Offline BMX1973

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #6 on: June 24, 2014, 05:41 PM »
Top Tip, never knew this.  :daumenhoch:

when putting cups in a frame.. stick them in the freezer for a few hours and it will shrink them so easy to fit

Offline pickle

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #7 on: June 24, 2014, 05:44 PM »
Never known it to make a blind bit of difference

Offline That Swan Guy

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #8 on: June 24, 2014, 05:50 PM »
Never known it to make a blind bit of difference

Me neither, just shave some powder off, line them up in a vice and tighten SLOWLY making sure they go in straight :daumenhoch:
Who wants to ride with Eddie Fiola?

Offline pickle

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Re: Bet way to remove opc BB cups and headset race...?
« Reply #9 on: June 24, 2014, 06:22 PM »
Yep  :daumenhoch:

Don't forget a bit of grease so they pop out easier  :daumenhoch:

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