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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  bottom bracket query
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Author Topic: bottom bracket query  (Read 1086 times)

0 Members and 2 Guests are viewing this topic.

GavinKent

  • Guest
bottom bracket query
« on: February 19, 2011, 01:50 PM »
hi all

i'll try to explain this as best i can.  i bought a mongoose crank to replace the generic one i have on my cali.  i took it apart and when i started fitting the chain wheel on to the new crank, the nut didnt do up fully - there is one washer/spacer, but it seems on this crank i'd need two of them to make up the space .  i checked the bottom bracket packet which i'd kept and there is no extra washer.  am i right in thinking it just needs another washer, and can i just purchase one of those?

hope this makes sense and would appreciate some advice

thanks in advance
gav

HEYWOOD BMX

  • Guest
Re: bottom bracket query
« Reply #1 on: February 19, 2011, 01:57 PM »
 :) Do you have any pics and show me the part you need? I have loads of BB bits spare :daumenhoch:

Hootski70

  • Guest
Re: bottom bracket query
« Reply #2 on: February 19, 2011, 02:13 PM »
Are you using a genuine goose b/b , as the older goose opc's were 28tpi , normal bb 24tpi .

GavinKent

  • Guest
Re: bottom bracket query
« Reply #3 on: February 19, 2011, 02:43 PM »
no, afraid this isnt a goose bb - here is the pic - you'll see the space - it's like the threaded bit on the crank doesnt go down far enough to enable the nut to tighten up completely

thanks both -


oldskooldayz

  • Guest
Re: bottom bracket query
« Reply #4 on: February 19, 2011, 02:50 PM »
Looks to me like that is the wrong nut buddy

not an old school type from all the ones ive fitted

it should have a recess on the flat side of about 1/2 cm if that makes sense to ya as thats what clears the gap

heres a pic of the type you should be useing

« Last Edit: February 19, 2011, 02:55 PM by oldskooldayz »

GavinKent

  • Guest
Re: bottom bracket query
« Reply #5 on: February 19, 2011, 03:01 PM »
ahhhh, right - i see - in that case, i need to buy another bottom bracket - cool, at least i now know where im going wrong

thanks a lot
gav

oldskooldayz

  • Guest
Re: bottom bracket query
« Reply #6 on: February 19, 2011, 03:03 PM »
loads for sale on here mate maybe voivod has a complete one for ya  :daumenhoch:

if not i might but ask him first  :daumenhoch:
« Last Edit: February 19, 2011, 03:05 PM by oldskooldayz »

GavinKent

  • Guest
Re: bottom bracket query
« Reply #7 on: February 19, 2011, 03:06 PM »
thanks all

Offline stfc

  • Rockwalk
  • ***
  • Posts: 559
  • Rated:
Re: bottom bracket query
« Reply #8 on: February 19, 2011, 08:30 PM »
Failing that sell me your crank and buy another, you,ll never find a mongoose b/b  ;)


RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  bottom bracket query
 

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