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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  bottom bracket question
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Author Topic: bottom bracket question  (Read 801 times)

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dirtbag jnr

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bottom bracket question
« on: October 04, 2006, 10:50 PM »
ive been told that mid bb is just us pushed out of the bearing cups is this true, please help me as ive just bought a frame with a mid bb and currently have spanish so i need to no  :LolLolLolLol:

Offline BrianP

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Re: bottom bracket question
« Reply #1 on: October 05, 2006, 09:37 AM »
morning dbj,

yeah for a 19mm BB, the bearings in a mid bb are just the R12 bearings out of a stanadrd US BB, eg profile, etc. without the cups.

dunno if this is the case with a regular 22mm US BB tho...

Bp.

ps hope ur grans doing better.

dirtbag jnr

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Re: bottom bracket question
« Reply #2 on: October 05, 2006, 11:31 AM »
thanks bp my nans coming home tomorrow and she will be staying with me so ill have my hands full looking after her :daumenhoch: 

i have primo cranks so i think ill just buy the bb kit to be on the safe side lol

Offline BrianP

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Re: bottom bracket question
« Reply #3 on: October 05, 2006, 01:22 PM »
that's good news!

yeah, might be better, just in case ;)

what frame did u get?

Brian.

dirtbag jnr

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Re: bottom bracket question
« Reply #4 on: October 05, 2006, 03:08 PM »
i got myself one of them new sunday frames in grey with gyro tabs ans a 20,5tt, ive seen lazychubs one and i relly liked the way it rode so i bought one lol, but i have to wait over a week to get it coz alans have to order direct from padded cell and its the only one padded cell have left in that colour and size

Offline BrianP

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Re: bottom bracket question
« Reply #5 on: October 05, 2006, 07:29 PM »
nice one  :daumenhoch:

those dropouts are a nice idea.

bet you can't wait!

Bp.

dirtbag jnr

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Re: bottom bracket question
« Reply #6 on: October 05, 2006, 08:38 PM »
no i cant i want it yesterday lol im really impatient with things like this i hate waiting lol

bof

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Re: bottom bracket question
« Reply #7 on: October 06, 2006, 12:50 AM »
Does that mean that you have a US primo BB for sale Im after one.

dirtbag jnr

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Re: bottom bracket question
« Reply #8 on: October 06, 2006, 11:26 AM »
bof i dont have one but my mate does he wants a tenner for it t's brand new

nathbmx2005

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Re: bottom bracket question
« Reply #9 on: October 06, 2006, 12:15 PM »
i got 2 brand new bearings for primo cranks, 22mm

Offline lazychubs

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Re: bottom bracket question
« Reply #10 on: October 06, 2006, 07:08 PM »
good choice in frame lol
wish i got gyro tabs now tho lol

dirtbag jnr

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Re: bottom bracket question
« Reply #11 on: October 06, 2006, 07:17 PM »
haha thanx rhys it's the only one padded cell have coming into the country in that size and colour with tabs there pretty rare apparently so i can't wait to get it :LolLolLolLol:

Offline lazychubs

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Re: bottom bracket question
« Reply #12 on: October 06, 2006, 07:20 PM »
and yes the bearings are standard 19mm axle ones that push straight in

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