BB (dumb?) question
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- gairym
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BB (dumb?) question
Fairly sure I know the answer to this one but thought I'd double check before potentially throwing my money away.....
Surely the only difference between bottom brackets of the same brand/type but differing widths is the plastic central gunk protector thingy?
So if I already have that piece for any given model of BB then I can buy the cheapest incarnation of that BB I can find and it'll work, no?
Surely the only difference between bottom brackets of the same brand/type but differing widths is the plastic central gunk protector thingy?
So if I already have that piece for any given model of BB then I can buy the cheapest incarnation of that BB I can find and it'll work, no?
- whitestone
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Re: BB (dumb?) question
AFAIK yes to both. I know the Hope BBs come with a couple of spacer washers for adjustment between BB shell and the bearing casings but apart from that road, MTB and fat bike HTII type bottom brackets are all the same*.
*Apart from the newer smaller shell on some Shimano BBs that require a different tool or an adaptor to fit them. The interfaces to the frame and crank spindle are the same though.
*Apart from the newer smaller shell on some Shimano BBs that require a different tool or an adaptor to fit them. The interfaces to the frame and crank spindle are the same though.
Better weight than wisdom, a traveller cannot carry
- voodoo_simon
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Re: BB (dumb?) question
Yes, for fatbikes, I bought the original B.B. for a fat bike width and then bought the basic (narrower) ones after and used the existing plastic insert from the original (if that makes sense?!).
Not sure if they’ll swap between brands
Not sure if they’ll swap between brands
- gairym
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Re: BB (dumb?) question
Nice one, thanks for the clarification.
The BB on my fatty has finally died (lasted over two years!).
Raceface but should be the same as for Shimano or Hope.
The BB on my fatty has finally died (lasted over two years!).
Raceface but should be the same as for Shimano or Hope.
Re: BB (dumb?) question
Yeah just to double confirm it, I have a Saint BB on my fat bike running with RF Aeffect cranks (and previously Middleburns until they self destructed in the middle of nowhere). I made my own plastic sleeve from a Berocca tube which seems to work okay (obviously Shimano don't make a fat bike specific BB).
Re: BB (dumb?) question
If it's a raceface gairy can't you just change the bearing. I've done it a few times ,they are 7mm deep instead of 6mm like shimano and are a standard size.
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Re: BB (dumb?) question
Hux - what do you use for removing the plastic "top hat"?
Re: BB (dumb?) question
Colin use a thin sharp knife under the edge to start if off then be gentle and go round it to ease it out. They are quite brittle so be careful.spares used to be available. Tap the bearing out from behind, cheap replacements repacked with a decent grease last ages.
-
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Re: BB (dumb?) question
I know how brittle they are
Re: BB (dumb?) question
Spares 99p from CRC
- gairym
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Re: BB (dumb?) question
You got a link as the only ones I can see are £6.49?HUX wrote:Spares 99p from CRC
And good idea, I didn't think of that.
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- gairym
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Re: BB (dumb?) question
Aaaah, I thought you meant it was a quid for the bearings, thought it was cheap
- gairym
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Re: BB (dumb?) question
Anyone know where I can get decent bearings from?
- fatbikephil
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Re: BB (dumb?) question
https://simplybearings.co.uk/shop/Beari ... index.htmlgairym wrote:Anyone know where I can get decent bearings from?
Enduro bearings - cheap and nasty but OK if you pop one of the seals and pump full of grease.
Re: BB (dumb?) question
Sorry to jump in with anothe BB question
Are the crank spindles all the same diameter
from memory I think the older HT2 ones are 24mm but is this the same for the newer ones also
I was pondering buying a newer shimano BB but couldn’t find any info on spindle size
Anyone know?
Are the crank spindles all the same diameter
from memory I think the older HT2 ones are 24mm but is this the same for the newer ones also
I was pondering buying a newer shimano BB but couldn’t find any info on spindle size
Anyone know?
2924 miles per Gallon
- fatbikephil
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Re: BB (dumb?) question
You either get 24 or 30. Shimano have stuck with 24 so you should be fineMart wrote:Sorry to jump in with anothe BB question
Are the crank spindles all the same diameter
from memory I think the older HT2 ones are 24mm but is this the same for the newer ones also
I was pondering buying a newer shimano BB but couldn’t find any info on spindle size
Anyone know?