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BB question... Shimano LP-28, square taper, 68x110
#1
I have a 2002 Specialized Hardrock Comp A1 bike.

I am looking for the bottom bracket tool and replacement sealed cartridge bearing for this bike.

The bottom bracket I have is a shimano LP-28, square taper, 68x110. I see cartridges that reference the 68x110, but I don't see the LP-28 number. What is the LP-28? I can find BB UN25 and BB UN54 online. Are these newer version and will they fit?
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#2
LP-28 is a catalogue number for the specific BB you have:
http://www.sheldonbrown.com/bbsize.html#shimano
http://www.amazon.com/Shimano-BB-LP28-Alivio-Bottom-Bracket/dp/B000R3CBKW
http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/BB/EV-BB-LP28-2033_v1_m56577569830608719.pdf

The UN series will fit, as will many others.
http://www.sheldonbrown.com/harris/bottombrackets.html
Nigel
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#3
thanks!

Any advise on the tool to remove the cartridge?



I see from your links that the bottom bracket too is a

TL-UN74-S

Any one have a part equivalent number?
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#4
I have one of these:
http://www.amazon.com/Park-Tool-Shimano-Cartridge-Bracket/dp/B001A0AIAG/
and there are many others:
http://www.amazon.com/Shimano-TL-UN74S-Bottom-Bracket-Installation/dp/B000F6DMX6/


You'll also need a crank puller, like this one:
http://www.amazon.com/Park-Tool-Compact-Crank-Puller/dp/B0028YUZSS/
Nigel
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#5
(05-01-2011, 08:34 PM)nfmisso Wrote:  I have one of these:
http://www.amazon.com/Park-Tool-Shimano-Cartridge-Bracket/dp/B001A0AIAG/
and there are many others:
http://www.amazon.com/Shimano-TL-UN74S-Bottom-Bracket-Installation/dp/B000F6DMX6/


You'll also need a crank puller, like this one:
http://www.amazon.com/Park-Tool-Compact-Crank-Puller/dp/B0028YUZSS/

Thanks alot!
Reply


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