Upgrading from 10 to 11 Speed...New Shifters?

[Chakadog]

I am upgrading an 8 year old Scott Solace from the Ultegra 6700 series, have acquired almost all the new components but wondering about the shifters. I have the Shimano Ultegra ST-6703 shifters for a triple. They work on my double crankset with a 10 speed drivetrain. What I am trying to find out is will the 10 speed shifters work with an 11 speed setup? Like I said, the shifters, even though they are for a triple crank work on the double 50-34. Would appreciate some solid replies. Thanks!

[ReapThaWhirlwind]

They use the same spacing, but unfortunately 10 speed shifters have 10 clicks and 11 speed components need 11.

[FabioMaria]

(09-03-2021, 06:04 PM)Chakadog Wrote:  I am upgrading an 8 year old Scott Solace from the Ultegra 6700 series, have acquired almost all the new components but wondering about the shifters. I have the Shimano Ultegra ST-6703 shifters for a triple. They work on my double crankset with a 10 speed drivetrain. What I am trying to find out is will the 10 speed shifters work with an 11 speed setup? Like I said, the shifters, even though they are for a triple crank work on the double 50-34. Would appreciate some solid replies. Thanks!

you are talking about the front derailleur, am I right?

[ChaseCal]

Kinda… but not really..
the spacing difference for 10-11 speed is less than about half a millimeter but it is still enough to make a difference. A 2x10 to a 2x11 setup is a little easier to set up cause you can kind of bend and work your way around it to make it work but a 3x to a 2x system on top of that makes it complicated. I would not recommend trying it. With the difference that you have to work with it realistically just wont shift well.