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A few more chainring questions
I have a few more questions about chainrings. Can I use a 10-speed
chainring on a 9-speed Ultegra drivetrain? Some of the rings I looked at say "For 9/10 speed drivetrains", but I just want to make sure there are no issues. I'm currently running 53/39 rings on my road bike. I'd like to replace them with 52/38 rings. Can I do this without any problems? Will I just have to adjust the front derailleur a little? Thanks, J. Spaceman |
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A few more chainring questions
On Mar 13, 5:20*pm, Jason Spaceman
wrote: I have a few more questions about chainrings. *Can I use a 10-speed chainring on a 9-speed Ultegra drivetrain? *Some of the rings I looked at say "For 9/10 speed drivetrains", but I just want to make sure there are no issues. I'm currently running 53/39 rings on my road bike. *I'd like to replace them with 52/38 rings. *Can I do this without any problems? Will I just have to adjust the front derailleur a little? Thanks, J. Spaceman No compatibility issues, but unless they're worn out, I wouldn't bother. With rings that large, you'll never notice a 1T difference. That's a 1.8% drop on from 53-52, and 2.5% from 39-38. by comparison, most rear shifts on a 10-speed cluster are 8-12%, and on an old 5-speed freewheel are more in the neighborhood of 20%. |
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A few more chainring questions
Hank Wirtz wrote:
On Mar 13, 5:20�pm, Jason Spaceman wrote: I have a few more questions about chainrings. �Can I use a 10-speed chainring on a 9-speed Ultegra drivetrain? �Some of the rings I looked at say "For 9/10 speed drivetrains", but I just want to make sure there are no issues. I'm currently running 53/39 rings on my road bike. �I'd like to replace them with 52/38 rings. �Can I do this without any problems? Will I just have to adjust the front derailleur a little? Thanks, J. Spaceman No compatibility issues, but unless they're worn out, for shimano, chain ramps are ever-so-slightly different on the 10-speed. shimano 9-speed rings work best with shimano 9-speed chain. I wouldn't bother. With rings that large, you'll never notice a 1T difference. on that we agree. That's a 1.8% drop on from 53-52, and 2.5% from 39-38. by comparison, most rear shifts on a 10-speed cluster are 8-12%, and on an old 5-speed freewheel are more in the neighborhood of 20%. |
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A few more chainring questions
On Fri, 13 Mar 2009 18:47:57 -0700, jim beam
wrote: Hank Wirtz wrote: On Mar 13, 5:20?pm, Jason Spaceman wrote: I have a few more questions about chainrings. ?Can I use a 10-speed chainring on a 9-speed Ultegra drivetrain? ?Some of the rings I looked at say "For 9/10 speed drivetrains", but I just want to make sure there are no issues. I'm currently running 53/39 rings on my road bike. ?I'd like to replace them with 52/38 rings. ?Can I do this without any problems? Will I just have to adjust the front derailleur a little? Thanks, J. Spaceman No compatibility issues, but unless they're worn out, for shimano, chain ramps are ever-so-slightly different on the 10-speed. shimano 9-speed rings work best with shimano 9-speed chain. I wouldn't bother. With rings that large, you'll never notice a 1T difference. on that we agree. That's a 1.8% drop on from 53-52, and 2.5% from 39-38. by comparison, most rear shifts on a 10-speed cluster are 8-12%, and on an old 5-speed freewheel are more in the neighborhood of 20%. The 53/39 rings currently on my bike are worn and in need of replacing, so I thought I'd give them Specialites TA rings a try and maybe get something slightly smaller like the a 52/38 combo. J. Spaceman |
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A few more chainring questions
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#6
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A few more chainring questions
On Mar 13, 7:58*pm, Jason Spaceman
wrote: On Fri, 13 Mar 2009 18:47:57 -0700, jim beam wrote: Hank Wirtz wrote: On Mar 13, 5:20?pm, Jason Spaceman wrote: I have a few more questions about chainrings. ?Can I use a 10-speed chainring on a 9-speed Ultegra drivetrain? ?Some of the rings I looked at say "For 9/10 speed drivetrains", but I just want to make sure there are no issues. I'm currently running 53/39 rings on my road bike. ?I'd like to replace them with 52/38 rings. ?Can I do this without any problems? Will I just have to adjust the front derailleur a little? Thanks, J. Spaceman No compatibility issues, but unless they're worn out, for shimano, chain ramps are ever-so-slightly different on the 10-speed. *shimano 9-speed rings work best with shimano 9-speed chain. I wouldn't bother. With rings that large, you'll never notice a 1T difference. on that we agree. That's a 1.8% drop on from 53-52, and 2.5% from 39-38. by comparison, most rear shifts on a 10-speed cluster are 8-12%, and on an old 5-speed freewheel are more in the neighborhood of 20%. The 53/39 rings currently on my bike are worn and in need of replacing, so I thought I'd give them Specialites TA rings a try and maybe get something slightly smaller like the a 52/38 combo. * J. Spaceman They will work fine. We sell many TA rings, no problem with them. |
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A few more chainring questions
Jason Spaceman wrote:
I have a few more questions about chainrings. Can I use a 10-speed chainring on a 9-speed Ultegra drivetrain? Some of the rings I looked at say "For 9/10 speed drivetrains", but I just want to make sure there are no issues. I'm currently running 53/39 rings on my road bike. I'd like to replace them with 52/38 rings. Can I do this without any problems? Will I just have to adjust the front derailleur a little? They are the same part, perhaps with different graphic. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
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