gfxgfx
 
logo
 
gfx gfx
gfx
975789 Posts in 138940 Topics by 6363 Members - Latest Member: Bmxflex November 07, 2024, 11:36 PM
*
gfx* Home | Portal | Forum | Merchandise | Help | Login | Register | gfx
gfx
RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
gfx
gfxgfx
 

Author Topic: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!  (Read 2106 times)

0 Members and 1 Guest are viewing this topic.

winnit93

  • Guest
BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« on: January 30, 2008, 12:35 PM »
ive just got the titan mini frame through from steve first thing i need to sort out is this weird bb size.
the hole on the frame is 38mm with cups that would take bearings 34mm.
this is a new one on me so can anyone shed any light on it and point me in the right direction :daumenhoch:

Offline oberonspacefruit

  • BMX Legend
  • Hoffman's Love Child
  • *
  • Posts: 24549
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #1 on: January 30, 2008, 12:40 PM »
spanish?

american bb without the cups?
I want to touch ORB

winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #2 on: January 30, 2008, 12:49 PM »
looks to small to be american without cups.

spanish could be right though

winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #3 on: January 30, 2008, 12:54 PM »
did spanish bb exist in 1982?

Offline BrianP

  • Cherry Picker
  • ****
  • Posts: 972
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #4 on: January 30, 2008, 01:12 PM »


any help? dims listed are relating to the bearings.

Bp  :daumenhoch:

Offline oberonspacefruit

  • BMX Legend
  • Hoffman's Love Child
  • *
  • Posts: 24549
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #5 on: January 30, 2008, 01:15 PM »
i think spanish are the last 10 years invention.
I want to touch ORB

Offline pickle

  • Site Supporter
  • My life is Radbmx
  • *
  • Posts: I am a geek!!
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #6 on: January 30, 2008, 01:31 PM »
Brian.....i think that's my BB  :daumenhoch:

i thought all mini's were euro sized BB?

HEYWOOD BMX

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #7 on: January 30, 2008, 01:35 PM »
 :) Don`t Euro B/B`s come in different sizes/threads????

winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #8 on: January 30, 2008, 01:37 PM »
the actual hole on this frame is 38mm,the outside diameter of the bearing is 34mm

these were very special and very expensive frames,made of titanium and arc welded under water :shocked:
dont think titanium was used on any other bmx bikes then.

even the headset's are different bloody 7/8 on these
« Last Edit: January 30, 2008, 02:02 PM by winnet93 »

dibly

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #9 on: January 30, 2008, 01:44 PM »
the inside diameter of a euro BB shell is 34mm but the bearing will be smaller than that depending on what size cups you use
« Last Edit: January 30, 2008, 02:00 PM by dibly »

Offline Moose

  • 540 Air
  • *******
  • Posts: 2328
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #10 on: January 30, 2008, 02:16 PM »
Do you have the cups still? If you do, what is the OD of the cup?

winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #11 on: January 30, 2008, 02:22 PM »
Do you have the cups still? If you do, what is the OD of the cup?

yes mate i have the cups o/a size is 39mm on the back of the cup

Offline Moose

  • 540 Air
  • *******
  • Posts: 2328
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #12 on: January 30, 2008, 02:30 PM »
Do you have the cups still? If you do, what is the OD of the cup?

yes mate i have the cups o/a size is 39mm on the back of the cup

Are the cups threaded?

winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #13 on: January 30, 2008, 02:32 PM »
NO!

Offline Moose

  • 540 Air
  • *******
  • Posts: 2328
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #14 on: January 30, 2008, 02:40 PM »
I have no idea either then.

Those cups should take normal euro sized bearings, but I have no idea what the cups are ?  ??? :-\

Offline Moose

  • 540 Air
  • *******
  • Posts: 2328
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #15 on: January 30, 2008, 02:59 PM »
Really quite odd, but I guess custom made for Titan jr's?

http://bmxmuseum.com/bikes/titan/1858

Offline BrianP

  • Cherry Picker
  • ****
  • Posts: 972
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #16 on: January 30, 2008, 03:06 PM »
Brian.....i think that's my BB  :daumenhoch:

lol, sure is bud!  :daumenhoch:

i think spanish are the last 10 years invention.

yeah they were developed by Fly Bikes, hence the "spanish" bit, but i'm sure there have been quite a few different variants out there at some stage.

I have no idea either then.

Those cups should take normal euro sized bearings, but I have no idea what the cups are ?  ??? :-\

Hey if the cups aren't threaded, isn't there another setup which is kinda like the profile evolution BB that actually threaded into itself from each side?

IASC or something???

Google time, I reckon...

Brian  :daumenhoch:

Offline kdw712

  • 900 Air
  • ********
  • Posts: 3358
    • kdw712 bmx adventures in old school
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #17 on: January 30, 2008, 03:18 PM »
Have a look on sheldonbrown.com

tons of info there    :daumenhoch:

def a weird size BB  :-\
cheers Kev
{ wanted : "Red Haro Handle" brake lever link to my trade post }

Offline stidds

  • Site Supporter
  • My life is Radbmx
  • *
  • Posts: I am a geek!!
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #18 on: January 30, 2008, 03:25 PM »
Have a search for 'Threadless Bottom Bracket', that is the kind that threads to itself.  I know YST do one but I am unsure of the sizes.


winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #19 on: January 30, 2008, 03:38 PM »

this is a 1985 model but even this looks smaller than the one i have

this is mine

Offline Moose

  • 540 Air
  • *******
  • Posts: 2328
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #20 on: January 30, 2008, 04:00 PM »
I saw that one as well and assumed the other was the same size - but as you've shown, it's not.

I definately have no clue and Sheldon Brown's website can't help either  :-\

winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #21 on: January 30, 2008, 04:02 PM »
im gonna pop round to keswick mountain bikes see if they know what the fook it is :LolLolLolLol:

Offline MartyC

  • Berm Worm
  • ***********
  • Posts: 8755
  • Radder than a Rad thing on a Rad day; maybe?
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #22 on: January 30, 2008, 05:47 PM »
Pop down to a bearing shop and see if they can get a match for you  :daumenhoch:


Better to crash and burn than fade away

winnit93

  • Guest
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #23 on: January 30, 2008, 07:36 PM »
Pop down to a bearing shop and see if they can get a match for you  :daumenhoch:

ye thats the next step ive a ti spindle coming so i can get a bearing to fit

Offline MartyC

  • Berm Worm
  • ***********
  • Posts: 8755
  • Radder than a Rad thing on a Rad day; maybe?
  • Rated:
Re: BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
« Reply #24 on: January 30, 2008, 07:48 PM »
Pop down to a bearing shop and see if they can get a match for you  :daumenhoch:

ye thats the next step ive a ti spindle coming so i can get a bearing to fit

Steve is selling the BB that came with it in the For Sale section "half price to the buyer of the Titan" or words to that effect  :daumenhoch:


Better to crash and burn than fade away

RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  BOTTOM BRACKET HELP IT'S NOT EURO OR AMERICAN!
 

gfxgfx
gfx gfx
Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!
SimplePortal 2.3.5 © 2008-2012, SimplePortal