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Old 04-04-06, 07:24 PM   #1
EdZ
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10 speed crank on 9 speed stuff...

I got a really good deal on a band new shimano ultegra 10 speed crank and bottom bracket on ebay, 65 bucks. I was'nt realy thinking at the time and didnt stop to consider whether or not it will work with my 9 speed drivetrain. Will it?
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Old 04-04-06, 07:51 PM   #2
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Yeah, sure!

As long as you can stand the onslaught of rabid ninja weasels.
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Old 04-04-06, 08:09 PM   #3
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Hey, can we make this a STICKY? Or at least until 10 speed becomes more common, and questions like this (can I use 10 speed stuff with my 9 speed stuff?) don't come up every day?
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Old 04-04-06, 09:01 PM   #4
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Quote:
Originally Posted by No_Minkah
Hey, can we make this a STICKY? Or at least until 10 speed becomes more common, and questions like this (can I use 10 speed stuff with my 9 speed stuff?) don't come up every day?
http://www.sheldonbrown.com/speeds.html
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Old 04-05-06, 06:13 AM   #5
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This thread isn't worth making a sticky so far. But an FAQ would be useful more generally.

As cranks are designed for more speeds, their chainrings can get closer together because the chains used are narrower. However, I don't think there's meaningful diff between chainrings designed for 9 and 10 speeds. There is a diff between 8 and 9, but it's slight.
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Old 04-05-06, 09:44 AM   #6
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The crankset on the 10 speed is 30/39/52, so if your old 9 speed is 30/42/52 you will have to change the front derailleur to a 10 speed or change the middle chainring for a 42 to make it work well
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Old 04-05-06, 11:33 PM   #7
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It won't mess up his chain line? Isn't the spindle longer on the Hollowtech II bottom bracket to compensate for the external bearings? I'm new to this and just speculating.
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Old 04-05-06, 11:45 PM   #8
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Chainline should be the same. The new integrated-BB cranksets are designed for the same chainline as more traditional cranksets. In the case of the road triple, chainline at 45mm (for the middle ring).
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Old 04-06-06, 01:12 AM   #9
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Let's just make Sheldon's site a sticky
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Old 04-06-06, 08:50 AM   #10
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Originally Posted by bellweatherman
Let's just make Sheldon's site a sticky


also Park Tool's Repair section
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Old 04-06-06, 09:05 PM   #11
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Quote:
Originally Posted by EdZ
shimano ultegra 10 speed crank and bottom bracket on ebay, 65 bucks.
???

*WARNING: southern hemisphere bike price whinge to follow

65 BUCKS????????!!!!!!!!!:eek:

When the Dura-Ace 10sp cranks first came out, they were retailing down here for ~$720!!! (~$540US)
My SUPER deal from my LBS, who absolutely LOVE me, was $510 (~$380US) for the DA 10sp Cranks and BB!!!
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