help with bottom bracket, want to make sure on purchase.
05-06-14 | 09:48 PM
#1
Thread Starter
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Joined: Jul 2013
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help with bottom bracket, want to make sure on purchase.
Hello All,
I need your help. I am helping a friend out with a new crankset, I need a one compatible with a 9 speed so i decide on the Shimano FC-M430 his bottom bracket shell is 68mm and i just need to be sure on the bottom bracket that i will be ordering.
All signs are pointing to it being a ES-25 Octalink in a 68mmx118mm,
https://techdocs.shimano.com/media/te...9830690265.pdf
Can one of you confirm my findings for me? just want to be sure i am ordering him the right item! thank you very much.
(pulling my hair out
)
If it's the un26 that i need i can't find out in octalink! supppper annoying
I need your help. I am helping a friend out with a new crankset, I need a one compatible with a 9 speed so i decide on the Shimano FC-M430 his bottom bracket shell is 68mm and i just need to be sure on the bottom bracket that i will be ordering.
All signs are pointing to it being a ES-25 Octalink in a 68mmx118mm,
https://techdocs.shimano.com/media/te...9830690265.pdf
Can one of you confirm my findings for me? just want to be sure i am ordering him the right item! thank you very much.
(pulling my hair out
)If it's the un26 that i need i can't find out in octalink! supppper annoying
05-07-14 | 08:23 AM
#4
Mechanic/Tourist
Joined: Apr 2007
Posts: 7,522
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From: Syracuse, NY
Bikes: 2008 Novara Randonee - love it. Previous bikes:Motobecane Mirage, 1972 Moto Grand Jubilee (my fave), Jackson Rake 16, 1983 C'dale ST500.
Did it occur to you to call a supplier of the part you want and ask them?
05-07-14 | 08:33 AM
#5
Senior Member
Joined: Nov 2005
Posts: 727
Likes: 1
From: Mustang, OK
Nope. Not discontinued. I just bought a 2014 Giant Anyroad 2 that has a R453 Octalink V2 crankset on it. I was surprised to see it was still being used.
05-07-14 | 08:36 AM
#6
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05-07-14 | 10:12 AM
#7
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for instance on the tech doc they list the fc-m430 and the fc-m430-8,
does the 8 in fc-m430-8 stand for the 8 splines on a octalink axle?
nothing on the document breaks down that part of the part number.
05-07-14 | 10:51 AM
#8
Low car diet
Joined: Aug 2007
Posts: 2,407
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From: Corvallis, OR, USA
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
If you have the crank in hand, it should be very obvious if it' takes a square-taper or splined Octalink V2 BB.
05-07-14 | 10:51 AM
#9
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Joined: Apr 2007
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OK, If you look at your PDF, it's either an UN26 or an ES25
I just did a quick image search and the ES25 is Octalink
and the UN 26 is square taper.
Look at the crank and it's obvious whether it's a square taper or Octalink connection.
If you're ordering the crank (haven't seen it yet), you should know which one you're ordering, OR just ask for the correct BB for whichever one you're ordering when you order it, OR, go on EBAY, buy both BB's (they're very cheap), when you get the crank, you'll see which it is (octalink or square taper) and send back the one you don't need.
Eaasy peasy.
I just did a quick image search and the ES25 is Octalink
and the UN 26 is square taper.
Look at the crank and it's obvious whether it's a square taper or Octalink connection.
If you're ordering the crank (haven't seen it yet), you should know which one you're ordering, OR just ask for the correct BB for whichever one you're ordering when you order it, OR, go on EBAY, buy both BB's (they're very cheap), when you get the crank, you'll see which it is (octalink or square taper) and send back the one you don't need.
Eaasy peasy.
