Author Topic: Bottom brackets  (Read 2265 times)

Offline rawchild

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Bottom brackets
« on: August 25, 2016, 03:17:40 AM »
Ok...I have used American, mids and Euros...so why do you have a spacer or bushing that fits in-between the bearings?  Is it necessary to install it?   Can you go without it? Thanks for info guys!
Hey Meg...check this out.

Offline Paradoxium

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Re: Bottom brackets
« Reply #1 on: August 25, 2016, 06:40:30 AM »
The tube spacers function is to take the side load out of the bearings when you tighten up the crank bolts. It makes bearings last longer.

Offline metalbmxer

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Re: Bottom brackets
« Reply #2 on: August 26, 2016, 12:06:23 AM »
Let me give you a tip:
You can stop using them (unless it's a Euro)

They create more problems than they prevent and end up adding unnecessary weight (some are steel vs aluminum)

I've noticed bearing wobble that went away once I took mine out. And in case you are wondering, have not had a single bearing failure in 2 years. Neither me nor another long time pro who rides for Hoffman (and he has been running his cranks without the spacer for YEARS)
Dax (now in NYC)

Offline rawchild

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Re: Bottom brackets
« Reply #3 on: August 29, 2016, 03:58:41 AM »
Ok I'll give that a try then thanks.
Hey Meg...check this out.

Offline JUGGARNAUT

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Re: Bottom brackets
« Reply #4 on: August 30, 2016, 01:08:03 AM »
Whos the long time pro?

Offline rawchild

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Re: Bottom brackets
« Reply #5 on: August 30, 2016, 03:15:53 AM »
Have you ever done that juggs?
Hey Meg...check this out.

Offline metalbmxer

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Re: Bottom brackets
« Reply #6 on: August 30, 2016, 06:50:50 AM »
Whos the long time pro?

It's Art Thomason
Dax (now in NYC)

Offline Peter Hollinger

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Re: Bottom brackets
« Reply #7 on: August 30, 2016, 12:16:06 PM »
If you are running pinch-bolt style cranks likes Primo Powerbites then I can't see any problem with removing the spacer.
However if you are on 48 spline cranks like Profile then I would definitely leave it in.

Offline efxman

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Re: Bottom brackets
« Reply #8 on: August 31, 2016, 02:28:37 AM »
As far as adding more weight I doubt you could ever tell a difference, I mean seriously we are talking mere ounces if not grams here.

Offline metalbmxer

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Re: Bottom brackets
« Reply #9 on: August 31, 2016, 05:29:29 AM »
As far as adding more weight I doubt you could ever tell a difference, I mean seriously we are talking mere ounces if not grams here.

Depends, the steel version of the spacer weighs about twice as much as the aluminum version. In a world where people will pay a premium for lighter parts, it's a no-cost no-brainer option.
Dax (now in NYC)