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RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  Euro bottom bracket change
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Author Topic: Euro bottom bracket change  (Read 556 times)

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HEYWOOD BMX

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Euro bottom bracket change
« on: September 12, 2007, 12:06 AM »
 :) I`m trying to swap my cranks over from a frame with a 68mmbottom bracket shell to a frame with a 73mm shell.Would it be ok to just use a couple of extra washers between the b/b bearings to compensate for the extra width,without having to try and find/buy a new tube spacer?

             Thanks,

                 James

darkersomeday

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Re: Euro bottom bracket change
« Reply #1 on: September 12, 2007, 12:15 AM »
as long as its spaced accurately and theres enough axle to hold the arms properly you should be ok like,


Offline Philbert

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Re: Euro bottom bracket change
« Reply #2 on: September 12, 2007, 12:18 AM »
assuming you mean adding washers on the inside to make the tube spacer effectively longer there shouldn't be a problem. just be careful that the washers aren't too deep that they'll obstruct the bearing shell

HEYWOOD BMX

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Re: Euro bottom bracket change
« Reply #3 on: September 12, 2007, 12:30 AM »
 :)Thanks-glad you both understood what I was saying-Damn "professional mechanics"in my local MTB shop could not grasp what I was trying to tell them.Prob just trying to sell me some overpriced crap anyway!!

Offline Dingobmxer

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Re: Euro bottom bracket change
« Reply #4 on: September 14, 2007, 07:53 PM »
as long as when all the spacers and tube are installed and tight there is a 2mm ish gap on one side between cup and frame so the bearings dont get side loaded then they will be fine  :daumenhoch:

 :) DINGO :)

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