BB Upgrade
10-12-12, 09:48 AM
#1
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BB Upgrade
I have an old style bottom bracket on a 1990ish Fuji mountain bike I'm re-habing for my wife. I want to upgrade to some lighter cranks and I'm looking at some on ebay. But these cranks come with a bb cartridge, Shimano BB-UN26. All the add says is that they're 68mm which looks like right width for my bb. I've never had a cartridge type bb, will this thing screw right in or is it more complicated?
10-12-12, 10:26 AM
#2
I let the dogs out
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It'll screw right in without any problem. Screw the drive side part in as tight as it will go and then do the same to the NDS. 68mm is the right width if the frame is steel.
10-12-12, 11:10 AM
#3
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Shimano BB-UN26.
will this thing screw right in or is it more complicated?
for the loose ball BB.
then buying the right installation tool, for the new one , a complication..
they are different..
10-12-12, 12:16 PM
#4
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The right tools are very important, plus the existing 'fixed cup' (the one on the right) is usually in very very tight. You need the proper tools to remove the old BB plus the tool to install the new one.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
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