Cranks - Are 9 speed / 10 speed the same?

Forum guidelines BT super discount
General Discussion Triathlon Talk » Cranks - Are 9 speed / 10 speed the same? Rss Feed  
Moderators: k9car363, alicefoeller Reply
2007-05-08 4:45 PM

User image

Master
1810
1000500100100100
Morse Lake, Noblesville, Indiana
Subject: Cranks - Are 9 speed / 10 speed the same?
My bike currently has a 9 speed drivetrain, and, I planning on going to 10 speed (full Dura Ace drivetrain - just need a few more parts).

My question - I just picked up a set of cranks. Is there any difference between 9/10 speed cranks, or can I go ahead and throw this set of cranks on the bike, and deal with swapping the rest of the parts later (I still need to get a cassette, chain and front derailleur).

2007-05-08 10:16 PM
in reply to: #793590

Pro
4054
200020002525
yep,
Subject: RE: Cranks - Are 9 speed / 10 speed the same?
might be wrong but you can add anything to your bike for just gotta match the cassette
2007-05-09 10:12 AM
in reply to: #793590

User image

Master
3019
20001000
West Jordan, UT
Subject: RE: Cranks - Are 9 speed / 10 speed the same?
You should be able to run a a 10 speed crank on a 9 speed bike, but not vice versa

Edited by tkbslc 2007-05-09 10:12 AM
2007-05-09 10:37 AM
in reply to: #793590

Pro
3903
20001000500100100100100
Andover
Subject: RE: Cranks - Are 9 speed / 10 speed the same?
I don't think it matters, as long as you're not talking about a compact setup or going from a double to triple or vise versa.

To an extent, cranks are cranks, right? All they do is hold the pedals and chain-rings. So, as long as your cranks fit the taper on your BB spindle, you should be all set.

The difference in going from 9 to 10 speed is in:
- the indexing of the rear shifter
- the spacing on the cassette
- the width of the chain

Anyone know if I'm missing something here???


Edited by CptnJackSparrow 2007-05-09 10:37 AM
2007-05-09 12:34 PM
in reply to: #793590

User image

Elite
4344
2000200010010010025
Subject: RE: Cranks - Are 9 speed / 10 speed the same?

The link below, if it works, connects to Shimano's technical support for compatibility.  What it shows is that the shifters, chain, cassette, and chainring/cranks must all be compatible, all 9 speed or all 10 speed.  The derailleurs, both front and rear may mix and match between 9 and 10.  You can add 1 mm spacers to a 10 speed cassette to get it to work with a 9 speed but I don't know who would bother.

http://bike.shimano.com/publish/content/cycle/sac/us/en/technical_service/compatibility_charts/road_compatibility.html

2007-05-09 1:08 PM
in reply to: #793590

User image

Elite
4344
2000200010010010025
Subject: RE: Cranks - Are 9 speed / 10 speed the same?

I read the front drive compatibility chart again and my previous post is slightly in error.  The front derailleur must match the type of system, 9 or 10 speed.  The only interchangeable drive component is the rear derailleur.  The chart is tricky to read.

TW

2007-05-09 1:19 PM
in reply to: #794716

User image

Cycling Guru
15134
50005000500010025
Fulton, MD
Subject: RE: Cranks - Are 9 speed / 10 speed the same?

10 speed has a narrower chain and different chainrings, so you'll have to change the chain, rear cassette, shifters and fr. der. for it to work.

Basically you need to convert it to 10-spd when all is said and done. ;-P

2007-05-09 1:21 PM
in reply to: #794658

Pro
3903
20001000500100100100100
Andover
Subject: RE: Cranks - Are 9 speed / 10 speed the same?
tech_geezer - 2007-05-09 1:34 PM

The link below, if it works, connects to Shimano's technical support for compatibility.  What it shows is that the shifters, chain, cassette, and chainring/cranks must all be compatible, all 9 speed or all 10 speed.  The derailleurs, both front and rear may mix and match between 9 and 10.  You can add 1 mm spacers to a 10 speed cassette to get it to work with a 9 speed but I don't know who would bother.

http://bike.shimano.com/publish/content/cycle/sac/us/en/technical_service/compatibility_charts/road_compatibility.html



Thanks for the link!
New Thread
General Discussion Triathlon Talk » Cranks - Are 9 speed / 10 speed the same? Rss Feed