Bottom bracket compatability. Square taper to hollowtech?
stuart_c-2
Posts: 805
Hi all,
Today's stupid question. If you have an old style square taper bottom bracket and cranks, can you upgrade to some like a hollowtech or octalink setup? Is the basic design of the bottom bracket shell on bike the same?
My brother has an old 99 Rockhopper and wants to change his chainset, is he restricted to square taper type setups?
Cheers
Today's stupid question. If you have an old style square taper bottom bracket and cranks, can you upgrade to some like a hollowtech or octalink setup? Is the basic design of the bottom bracket shell on bike the same?
My brother has an old 99 Rockhopper and wants to change his chainset, is he restricted to square taper type setups?
Cheers
"I ride to eat"
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Comments
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Yes you can upgrade though you'll need the bb facing before installing a hollowtech style bb.So it's best to take it too a bike shop as the tool is about £300 and they'll properly do it for free if you buy the chainset from them. you also won't get any gear problems if they do it.0
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Doesn't also depend on wether the frame will take a external bottom bracket?0
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Almost all frames will take an external bottom bracket.
Of course, when changing the BB type, you need to change the cranks.0 -
IMO I would not bother with a bike 11 years old messing about with the expense of changing the crank and BB type..
I would source a new or used Deore square taper crank (or octalink at a push) with replaceable rings and when they wear our get some decent rings, Middleburn, Raceface etc. This with a UN54 bottom bracket would suit the bike better.Cotic Soul 26 inch. Whyte T1300 -
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bigbenj_08 wrote:you can get a ht2 deore crankset with bb fro £60...
Not sure if this the same as your talking about, but Merlin have got this one for £50
http://www.merlincycles.co.uk/mountain-bike-chainsets/shimano-deore-590-chainset.html0 -
mickedwards61 wrote:bigbenj_08 wrote:you can get a ht2 deore crankset with bb fro £60...
Not sure if this the same as your talking about, but Merlin have got this one for £50
http://www.merlincycles.co.uk/mountain-bike-chainsets/shimano-deore-590-chainset.html
Good choice!
I'd ignore plugp7 tbh, I don't see how a chainset can 'suit' a bike. It's a sensible replacement.0