8-speed chainring => 10 speed compatibility?
09-23-05, 06:48 PM
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8-speed chainring => 10 speed compatibility?
Will an 8-speed chainring set work with a 10 speed drivetrain? I have an old 8-speed Dura-Ace crankset with the old 8-speed Dura-Ace chainrings. And I am wondering if I can use my old chainrings with the new Dura-Ace 10 speed chain. Perhaps the new 10 speed chains are too narrow for the old 8-speed chainrings, but who knows... Maybe it will work. Anybody with experience trying this? I really don't want to spend the money and buy new chainrings if I don't have to.
09-23-05, 06:54 PM
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Yes....in fact I used a shimano 600 8 speed crankset for some time with an otherwise campy 10 setup.no problems.Derailer chains are the same inside width.
09-23-05, 08:03 PM
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The only "problem" with this set-up is that 8-speed chainrings are spaced further apart than on 9 or 10-speed cranks and the narrower chain can slip into the gap instead of shifting cleanly from one ring to the other. Shimano says the narrower chains can be used with 8-speed cranks but recommends you only shift the front derailleur while seated. Sounds silly but the intent is to keep you from shifting under a lot of chain tension.
09-23-05, 08:27 PM
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I second sydney - I used the same combo on sydney's advice, and it worked pefectly.
09-23-05, 09:08 PM
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Originally Posted by HillRider
The only "problem" with this set-up is that 8-speed chainrings are spaced further apart than on 9 or 10-speed cranks and the narrower chain can slip into the gap instead of shifting cleanly from one ring to the other. Shimano says the narrower chains can be used with 8-speed cranks but recommends you only shift the front derailleur while seated. Sounds silly but the intent is to keep you from shifting under a lot of chain tension.
09-24-05, 09:03 AM
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OK, I wasn't quite accurate when i said the narrower chain would fit into the gap between the chainrings. What seems to happen is that the chain rides on top of the teeth of the smaller ring for a while instead of meshing properly.
09-26-05, 05:01 AM
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Originally Posted by HillRider
OK, I wasn't quite accurate when i said the narrower chain would fit into the gap between the chainrings. What seems to happen is that the chain rides on top of the teeth of the smaller ring for a while instead of meshing properly.
That sounds like a front derailleur that just needs a simple adjustment. Could it just be that a minor adjustment would fix the problem you suggest? Or is the problem a function of the too narrow chain itself?
