10 speed cranks on 8 speed..

[Jared Purdy]

The title pretty much says it. I have a lead on a NOS 2005 aluminum Record 10 speed crank set, and the cost is tempting me to consider getting it for the chain rings to use on my 1993 Record 8 speed. Any thoughts as to how it would all integrate? They're the same BCD. They're also the same colour so they wouldn't look out of place. Cheers. JP

 

[Nob]

As long as the BCD is the same & same number of chainring bolts then any make size of ring can be used within reason even this osymetric oval rings that were all the rage a few years ago.

 

[hamster]

It will be fine. I've run Campag 10s chainsets in 7s systems with no trouble.

 

[daccordimark]

If the 8 speed chainset has the hidden 5th arm like the 10 speed one does then it will be okay. I used to run a 10 speed chainset with my 8 speed setup and the only slight issue I had was the chain rubbing on the outer ring when using the inner ring and the second to smallest sprocket on the cassette. With an 8 speed chainset it wasn't an issue and I assume it's because 10 speed chainrings are slightly closer together.

 

[stephan]

If the 8 speed chainset has the hidden 5th arm like the 10 speed one does then it will be okay. I used to run a 10 speed chainset with my 8 speed setup and the only slight issue I had was the chain rubbing on the outer ring when using the inner ring and the second to smallest sprocket on the cassette. With an 8 speed chainset it wasn't an issue and I assume it's because 10 speed chainrings are slightly closer together.

I take it you were using a 8 speed chain, did you ever try a 10 speed chain on the 8 speed cassette etc? I have posted a similar thread a few months ago and got various replies (different speed 7-9), my conclusion was "I just need to try it" to see it it works or not. Edit - apologies you are talking Campag - I was asking about Shimano - Ignore me.

 

[daccordimark]

I take it you were using a 8 speed chain, did you ever try a 10 speed chain on the 8 speed cassette etc? I have posted a similar thread a few months ago and got various replies (different speed 7-9), my conclusion was "I just need to try it" to see it it works or not. Edit - apologies you are talking Campag - I was asking about Shimano - Ignore me.

I guess the same principle applies regardless of whether it's Campag or Shimano. I was using an 8 speed chain which is just a bit wider than 10 speed so that's probably why the chain rub was happening. I have used an 11 speed chain on 10 speed chainrings and not had any issues.

 

[Jared Purdy]

Thanks for the replies. They seem to be the consensus. That being said, I was able to source a pair of NOS 39/53 mid 90's C Record chainrings. Perfect!