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View Full Version : My least favorite type of question: Drivetrain Compatibility


Louis
07-31-2010, 04:19 AM
Will an FSA Pro Road S10 outer chainring play nicely on a DA 9-spd crank with a Shimano 9-spd chain?

I've found the following on FSA chainrings:

>> S10 is compatible with Shimano, SRAM and Campagnolo Ultra Narrow 10-Speed
>> S9/C10 is compatible with Shimano 9 speed and Campagnolo C10 10-Speed

The chainring I've located is labeled as "S10" so I'm wondering if it will work in an "everything else Shimano 9-spd" config.

TIA
Louis

(Or: Do you have an extra 9-spd 130mm BCD 48T outer chainring?)

thegunner
07-31-2010, 06:59 AM
technically speaking... yeah it will. when i was still working in a bike shop, i was asked to install 10s chainrings on 9 speed setups (CT2 on an older crank) by the owner himself! it shifted properly while on the bike stand, and i imagine in practice too if he were using it...

how optimal it is... i have no clue, but from a purely technical standpoint it should be fine.

oldpotatoe
07-31-2010, 08:08 AM
Will an FSA Pro Road S10 outer chainring play nicely on a DA 9-spd crank with a Shimano 9-spd chain?

I've found the following on FSA chainrings:

>> S10 is compatible with Shimano, SRAM and Campagnolo Ultra Narrow 10-Speed
>> S9/C10 is compatible with Shimano 9 speed and Campagnolo C10 10-Speed

The chainring I've located is labeled as "S10" so I'm wondering if it will work in an "everything else Shimano 9-spd" config.

TIA
Louis

(Or: Do you have an extra 9-spd 130mm BCD 48T outer chainring?)


Yes, use the one labeled S10, it will work fine with a 9s chain. BTW-I have a Record 10s crank and rings and use an 8s chain on my friction 7s setups, they work fine.

oliver1850
07-31-2010, 10:21 AM
.

Louis
07-31-2010, 02:45 PM
Thanks guys :) - I'll give it a shot.

Louis

Bob Loblaw
08-01-2010, 05:55 PM
Don't lose any sleep over crank compatability. I'm currently running a 6/7 speed crank with 10 speed Ultegra. Never missed a shift or dropped the chain yet.

BL