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Powertap: Shimano 9sp AND Campy 10sp use

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Powertap: Shimano 9sp AND Campy 10sp use

Old 07-19-06, 11:47 AM
  #1  
docbluedevil
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Powertap: Shimano 9sp AND Campy 10sp use

I'm thinking about a Powertap to help with my training. I ride 2 roadies regularly: race/training bike (Shimano 9sp) and training/touring bike (Campy 10sp). Ideally, I'd like to be able to use the Powertap rear wheel with both bikes.

1) I'm assuming that if I buy a Powertap with a Shimano hub, I can use a conversion cassette (e.g. American Classic, Wheels Manufacturing) to enable use with my Campy drivetrain? This conversion should work for any rear wheel, much less a Powertap, I think.

2) But will there be shifting problems going from Shimano 9sp to Campy 10 sp? Anyone who's doing this, whether with Powertap or not?

Thanks.
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Old 07-19-06, 12:00 PM
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auk
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One thing to keep in mind is that the Shimano and Campy 10spd cassette spacing is so close that they will shift perfectly between one another. So, a conversion cassette is not necessary. Also, a Campy 10 shifter and 10 der. will shift a 9spd Shimano cassette just fine. You just have to watch out for the limit screws so that you don't shift the chain into the spokes. I speak of both of these thing on a personal basis, as I have used both setups with no problems.

Good luck with the Powertap, as it is certainly on my hit list for next pruchase.
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Old 07-19-06, 12:41 PM
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Originally Posted by auk
One thing to keep in mind is that the Shimano and Campy 10spd cassette spacing is so close that they will shift perfectly between one another. So, a conversion cassette is not necessary. Also, a Campy 10 shifter and 10 der. will shift a 9spd Shimano cassette just fine. You just have to watch out for the limit screws so that you don't shift the chain into the spokes. I speak of both of these thing on a personal basis, as I have used both setups with no problems.

Good to know, as I didn't know this before. I'm assuming you mean a Shimano 9sp and Campy 10sp cassettes are spaced closely?

I'm not sure though that I would want to spend the extra time adjusting limit screws each time before/after I ride the Campy 10 sp bike with the 9 speed Shimano/Powertap wheel; I'm bound to forget or won't bother to use the Powertap 9 speed wheel cuz I'm too lazy. I'd rather just swap a cassette (although it's debatable which would take more time/effort).
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Old 07-19-06, 09:43 PM
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My roadbike is Campy 10 and my TT bike is Shimano 9. Right now, I just switch the cassette. It's a pain, but not terrible. I am planning on upgrading my TT bike to Shimano 10 soon, so I don't have to swap back and forth and just run a Shimano 10 cassette. 9 Shimano/Campy work flawlessly. 10 Campy/Shimano work about 95% of the time, but mine require a turn of the screws. Some do, some don't.
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Old 07-20-06, 05:30 AM
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I've heard that the AC conversion cassettes don't work with the PowerTap hub. I could be wrong, though.

Another option is to buy two hubs and two wiring kits. More expensive, I know.

--Steve
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Old 07-20-06, 06:33 AM
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Originally Posted by auk
One thing to keep in mind is that the Shimano and Campy 10spd cassette spacing is so close that they will shift perfectly between one another. So, a conversion cassette is not necessary. Also, a Campy 10 shifter and 10 der. will shift a 9spd Shimano cassette just fine. You just have to watch out for the limit screws so that you don't shift the chain into the spokes. I speak of both of these thing on a personal basis, as I have used both setups with no problems.

Good luck with the Powertap, as it is certainly on my hit list for next pruchase.
I did not know that the 10spd campy and 10spd shimano cassette spacing is that close. Thanks for the tip as I'm currently upgrading my shimano bike to campy!!!
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