gfxgfx
 
logo
 
gfx gfx
gfx
975792 Posts in 138942 Topics by 6363 Members - Latest Member: Bmxflex November 12, 2024, 08:16 AM
*
gfx* Home | Portal | Forum | Merchandise | Help | Login | Register | gfx
gfx
RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Whats the difference between a Euro and American BB
gfx
gfxgfx
 

Author Topic: Whats the difference between a Euro and American BB  (Read 1434 times)

0 Members and 1 Guest are viewing this topic.

madmaxusm

  • Guest
Whats the difference between a Euro and American BB
« on: February 21, 2008, 04:25 PM »
Can someone tell me what the difference is please  ;) ;)

Trev

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #1 on: February 21, 2008, 04:27 PM »
size i think. i also believe that the euro bb screws into the frame.

Offline gavprimo

  • Curb Endo
  • **
  • Posts: 155
  • Rated:
Re: Whats the difference between a Euro and American BB
« Reply #2 on: February 21, 2008, 04:50 PM »
euro bbs commonly have 4 bearings on each side as well as they are smaller

madmaxusm

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #3 on: February 21, 2008, 06:38 PM »
Has anyone got any pics to show me the difference  ;) ;)

Cheers in advance

bridgecity

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #4 on: February 21, 2008, 08:10 PM »
this has all the details you need to know about a euro BB.  :)

http://www.bmxmuseum.com/forums/viewtopic.php?id=30010

madmaxusm

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #5 on: February 21, 2008, 08:43 PM »
this has all the details you need to know about a euro BB.  :)

http://www.bmxmuseum.com/forums/viewtopic.php?id=30010

Excellent mate..thanks  :daumenhoch:

lodge

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #6 on: February 21, 2008, 10:32 PM »
If you have a choice for BMX dont go for a euro go for spanish or mid, euro BB's run small low profile bearings which are prone to premature failure. also the frame BB threads are easily damaged. Euro BB's work better with a crankset that runs outboard (Bigger) bearings such as shimano saint or DXR but these are only suitable for racing not freestyle.
Virtually all old skool frames have a USA BB. (yeah i know your head hurts)

Longun

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #7 on: February 22, 2008, 10:19 AM »
The way I had it explained to me was as follows;

US BB ie what's on most non-mini OS frames use the larger bearings with a bearing cup i.e the bearings dont press directly into the frame.
Mid - some NS frames. Same bearings as in the US set up but without the bearing cup.
Euro - lots of OS minis. Smaller bearings with threaded bearing cups
Spanish - Same bearings as Euro but press directly into the frame.

Does that sound about right?

SaMAlex

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #8 on: February 22, 2008, 11:36 AM »
Spanish - Same bearings as Euro but press directly into the frame.

Does that sound about right?


Spanish ARE NOT the same bearings as euro. They are bigger than euro bearings but (slightly) smaller than mid (or USA) bearing. They do fit directly into the frame like Mids, but the frame shell of a Spanish BB is bigger than a Euro BB.

Mid and Spanish are very close to each other functionaly, there is just some argument over which bearing size is easier to get hold of, esp for the larger spindle sizes.

bridgecity

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #9 on: February 22, 2008, 07:43 PM »
Dan's comp magazine has a great little write-up in the corner of the crank page.
Here is the info minus the pics:

American- The original BB for BMX also referred to as Pro size.  The bearing rests in a cup that is pressed into the frame.  The bearings are large and durable but typically heavier than other types.

European-  European BB's use small cups that thread into the frame, making installation easy.  Since the bearings are small, most Euro BB kits use four bearings to spread the load.

Spanish-  Spanish BB's use a bearing that presses directly into the frame without the use of a cup for a clean, flush look.  Spanish bearings are larger than the European bearings, but still smaller than an American bearing.

Mid- Mid BB's use an American sized bearing that presses directly into the frame without the use of a cup, leaving a flush fit.  The bearings are strong, but slightly heavier than Spanish bearings.

Personally, I've had some creaking issues with a Euro BB that required lots of grease to remedy.

madmaxusm

  • Guest
Re: Whats the difference between a Euro and American BB
« Reply #10 on: February 22, 2008, 08:04 PM »
 :D :D :D

I think my question has been answered  ;) ;) It makes more sense to me now as I have only been in contact will the old school type.

Many thanks for all your help guys..... ;)

Offline Rombloke

  • Team Owner
  • My life is Radbmx
  • *
  • Posts: 77337
  • do one
  • Rated:
Re: Whats the difference between a Euro and American BB
« Reply #11 on: February 23, 2008, 03:01 PM »
wasnt the us bb invented so as to be able to use one piece cranks????

Dave
haro, how do you do

RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Whats the difference between a Euro and American BB
 

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