Shimano Dura Ace FC7710 Cranks - What bottom bracket goes with them?

hi my cranks are shimano dura ace FC7710 BC 170 (whatever that means)

what BB goes with them?

cheers

BB-7700/BB-7710

Are you that lazy to google it?!
Dura-Ace Track Crankset (FC-7710)This is from Shimano’s top of the range racing group set, designed for the track.

The hollowtech hollow forged aluminium crank arms and the octalink splined bottom bracket make this aluminium chain set lightweight and stiff.
Weight is specified at 587g with 170mm crank arms and a 46T chain ring.
The chain rings come in 3/32” and 1/8”, in combinations between 46T & 54T and are seated on a 144mm pcd.

The crank set has an excellent anodized finish which is complemented throughout the whole Dura Ace track group set, and it’s nice to see little details like the Shimano stamped chain ring bolts.
This crank set looks very capable of withstanding any aggression or abuse unleashed on it, even by an 87kg powerhouse.

The crank arms come in a variety of lengths, 165mm, 167.5mm, 170mm, 172.5mm and 175mm and fits onto octalink splined bottom bracket, unit BB-7700/BB-7710.

Note: Chain rings not supplied.

^cheers forgot about google.

for my next stoopid question where can i get a BB-7710???????

http://www.awcycles.co.uk/brands/Shimano/Dura-Ace_Track_Bottom_Bracket/12381/index.aspx

found via http://www.google.co.uk/search?hl=en&q=BB-7710+bottom+bracket+&btnG=Search&meta=cr%3DcountryUK%7CcountryGB

thanks google is making me look like a right clown today.

According to google thats the only uk stockist, can anyone prove me wrong? as i would like to pay with either cash or paypal

pretty cool i've got the best cranks in the world and i didnt even know

Who said best cranks in the world? Oh... I didn't realise these were the ones with Campagnolo stamped on them ;)

does anyone have a spare one to sell to me?

no

anyone else?

Jesus Christ, do you not have the ability to type without CAPS LOCK on?

And why isn't my shout blocker not working? Bugger.

THE BASTARD THING works for ME!

don't now about the best cranks in the world!

velocity boy Jesus Christ, do you not have the ability to type without CAPS LOCK on?

And why isn't my shout blocker not working? Bugger.

i promise not to use capitals anymore if you promise not to blaspheme

got any bb 7710's?

Yes.

provenrad Yes.

how many monies?

I own several BB 7710s. Since they are so RARE and DIFFICULT TO TRACK DOWN I am gonna sell them for £80 each.

jv [quote]velocity boy Jesus Christ, do you not have the ability to type without CAPS LOCK on?

And why isn't my shout blocker not working? Bugger.

i promise not to use capitals anymore if you promise not to blaspheme

got any bb 7710's?[/quote]

deal.

In future, I shall say Jeesie Creezie.

provenrad I own several BB 7710s. Since they are so RARE and DIFFICULT TO TRACK DOWN I am gonna sell them for £80 each.

ok. if i can just have your sort code and bank account details, i can wire you the monies as soon as possible

http://www.fonejacker.tv/george_2_200x150.jpg
Goog morning Saaah!I am apologies but if you can't responsible enough have debit / credit card then bb 7710s could destroy your frame, cranks, and possibly your entire bedroom. Send no monies now!

Google more and stop being gullible. You can also use road octalink BBs which are the right length instead of the track one. They will be (a) cheaper and (b) much better sealed than the track BB, and so much better suited for road use. Here's some info from the guru of bikeforums.net

[cite]11.4[/cite]
With the 7710 crankset, you can use

(a) Dura Ace 7701 octalink road bottom bracket (aka dual chainring Dura Ace road): Nicest bearings of the bunch, and perfect on the track. Doesn't have NJS rating if that matters. Lighter than the other two. If you get it wet, it needs to be opened fairly regularly and regreased. Needle bearings on the drive side and actual adjustability in case your bottom bracket shell width is off by a millimeter or two. Great for those who don't mind working on their bike just a bit, or for track.
(b) Ultegra 6501 Octalink (aka dual-chainring Ultegra road): This is the durability winner. Good seals, steel axle, steel housing. This bottom bracket is far and away the best for typical road fixie use, and it'll outlast the frame. Easy assembly (just screw in the drive side, tighten, then screw in the non-drive side and tighten -- no adjustment per se). The seals may create slight friction, but you'll never know it in use. Find it on eBay for $25-20 brand new -- can't beat the deal.
(c) Dura Ace 7710 track bottom bracket: Heaviest of the bunch (all steel, no aluminum). Pretty much the same as the Ultegra but with the seals removed so it spins a bit easier (but frankly not much). Except for the NJS seal there's not much reason to buy this one. Why pay 2-3 times what the Ultegra costs, and get lesser performance? It's one example of where NJS means that it got approved, not that it's the best alternative out there.

I have also heard that these cranks are not recommended for street fixed use because backpedalling can cause the spline interface to get worn, which means the cranks are buggered. They're great for the track and will be ok for street as long as you keep them tight enough, use a torque wrench and don't skid/skip on them (and use minimal backpedalling).

Out of interest, where did you get them from?

Well done momentum. Fountain of knowledge

I will add that my cranks are octalink (not D.A though). I do run a break but I still skid a reasonable amount, the cranks have prob about 7.5k miles on them and they are fine (touch wood). I do check them for looseness every so often but not another care is lavished upon them. I am fairly light weight at around 70 kg and run 52 x 18 which is 76 g.i (calculated for a 700 cc with 23 mm tyre) for reference.

This is not to say that octalink is fine as mine is only one case but it is my experience.

splendid news

looks like i'll go for the Ultegra 6501 Octalink then, cant find it on google though, maybe they changed the name?

Ultegra 6501 Octalink : I can find no mention of this bb anywhere, I've found a lot of 6500's though, anyone know if this is the same thing????????

http://www.google.co.uk/search?hl=en&q=Octalink+Ultegra&btnG=Search&meta=

http://www.google.co.uk/products?hl=en&q=Octalink%20Ultegra&oe=UTF-8&um=1&ie=UTF-8&sa=N&tab=wf

;-)

http://www.pedalon.co.uk/acatalog/shimano_ultegra_octalink_bb.html

Does not say the 6501 bit but it is compatable just check which length you need. At a guess I would say the 109.5 mm.

http://www.evanscycles.com/product.jsp?style=10213

this one will work i hope

Sorry - forgot to change that in the quote. Original guy made a typo and it should be 6500