Compact crank for 9sp Ultegra?
07-09-09, 10:02 AM
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Compact crank for 9sp Ultegra?
Thought I'd see what all the fuss was about with compacts. Well, that and I've started doing legit hill climbs and I'm falling into a lower cadence than I'd like. So what's out there that's compatible with my Ultegra 6510 drivetrain?
07-09-09, 10:36 AM
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you can just buy a 10s compact crank and use a 10s chain with your 9s cassette. FYI, even after you lower the front derailleur, the 9s Ultegra/DA derailleurs don't seem to shift that great with compacts....just buy a 10s derailleur as well
07-09-09, 10:48 AM
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I run a 10 speed compact with my 8 speed bike. I've never had a problem. The bike does have downtube shifters, so I don't know if that matters for shifting since the front one is friction.
Because the 10spd chains are narrower, I don't think that you want to change your chain. You should be ok to run narrower chainrings with your current set up. Backcountry.com has Ultegra compacts on sale for $99 right now. I would recommend one of those.
Of course I am no expert, I just happened to sleep at a Holiday Inn Express last night.
Because the 10spd chains are narrower, I don't think that you want to change your chain. You should be ok to run narrower chainrings with your current set up. Backcountry.com has Ultegra compacts on sale for $99 right now. I would recommend one of those.
Of course I am no expert, I just happened to sleep at a Holiday Inn Express last night.
Last edited by trojanman; 07-09-09 at 10:53 AM.
07-09-09, 10:56 AM
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tiagra compact fits the bill. actually you can use any shimano 10sp compact too.
I've used 9sp FD with a 10sp shimano compact with 9sp chain/cassette, it worked fine.
if you can't get it to shift properly with a 9sp FD, you are doing something wrong.
I've used 9sp FD with a 10sp shimano compact with 9sp chain/cassette, it worked fine.
if you can't get it to shift properly with a 9sp FD, you are doing something wrong.
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07-09-09, 12:04 PM
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If you have an octalink BB, then the ritchey crankset will fit just fine.. I have done it with my DA 9 speed setup.. Lower the Front Der a bit, take a few links out of the chain and you good to go..
Bought mine on ebay from Bayareavelo
https://cgi.ebay.com/NEW-RITCHEY-WCS-...lenotsupported
Bought mine on ebay from Bayareavelo
https://cgi.ebay.com/NEW-RITCHEY-WCS-...lenotsupported
07-09-09, 03:33 PM
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That Ritchey looks interesting, thanks -- and I guess I'll keep an eye out for compact Shimano kit as well. Good to know there's some minor incompatibility but that it can be dealt with.
07-09-09, 03:36 PM
#8
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I used a standard Ultegra 10-speed compact crank on a 9-speed drivetrain and it worked flawlessly.
- 10spd Ultegra crank
- 9psd 105 brifters
- 9spd XTR rear derailleur
- 105 front derailleur
- SRAM chain
Quite the cobbled-together setup, as you can see.
- 10spd Ultegra crank
- 9psd 105 brifters
- 9spd XTR rear derailleur
- 105 front derailleur
- SRAM chain
Quite the cobbled-together setup, as you can see.
07-09-09, 05:10 PM
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I run all 9 spd 105 with a rival compact... no shifting problems at all. I do run a 10 spd chain, but plan to try a 9 spd next time around... but only if I can find one for les then the 10's which seems to be getting harder to do...
It May take a little tweaking to get it shifting just right, but onec it's set, it is good to go.
It May take a little tweaking to get it shifting just right, but onec it's set, it is good to go.
07-10-09, 12:40 PM
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I found an R700 Shimano 10 spd compact crank on ebay and it installed it on my 9 spd Trek 1500. It shifts and operates perfectly. It only cost $ 79 and had been used very little. It's a 50/34. I also had a 12-27 Ultegra (from probikekit) installed and made it up Mt Mitchell with no probs. Shop around and you can save a lot. Good luck.
