11-speed shifter on a 9-speed bike

[pobrien]

I am looking at replacing the 9-speed thumb shifters on my Homer Hilsen with 11-speed Shimano 105 STI and upgrade the rest later (the rear derailleur and cassette are new so don't want to waste them).

Is this feasible? I am okay doing a wholesale upgrade and donating the spare parts to the local bicycle co-op. I am thinking this is the right way to go...

I considered running a Campagnolo group to be consistent with my other bikes but figured Shimano would be fine and Shimano would be easier to find parts for in small towns if I take the Hilsen touring some day.

Constructive advice appreciated!

[oldpotatoe]

Originally Posted by pobrien

I am looking at replacing the 9-speed thumb shifters on my Homer Hilsen with 11-speed Shimano 105 STI and upgrade the rest later (the rear derailleur and cassette are new so don't want to waste them).

Is this feasible? I am okay doing a wholesale upgrade and donating the spare parts to the local bicycle co-op. I am thinking this is the right way to go...

I considered running a Campagnolo group to be consistent with my other bikes but figured Shimano would be fine and Shimano would be easier to find parts for in small towns if I take the Hilsen touring some day.

Constructive advice appreciated!

Those 11s shifters are not compatible with anything but shimano road 11s ders. It ‘could’ work with a 9s or 10s cogset but they would have to spaced to 11s spacing, with 11s ders. In addition, you ‘may’ need a new rear wheel/hub since shimano 11s road cogsets won’t fit into a 9/10s rear wheel.

[charliedid]

Why not just buy a set of Sora 9 speed shifters for little $ and enjoy the ride?

Upgrade everything or get a new bike later.

[jemdet]

If I remember correctly, campy 11V shifters will shift 9V shimano cassettes with old shimano rear derailleurs

[DfCas]

I use a campy 11 speed ergo with a Shimano rear derailleur and cassette. Works great.

[pobrien]

I appreciate the input. I am conflicted about the 9-speed and might just go with a Shimano 105 11-speed and donate my used parts to the bike co-op.

I reckon that makes sense long term.

Again, I appreciate the comments and suggestions.

Patrick

[charliedid]

Originally Posted by pobrien

I appreciate the input. I am conflicted about the 9-speed and might just go with a Shimano 105 11-speed and donate my used parts to the bike co-op.

I reckon that makes sense long term.

Again, I appreciate the comments and suggestions.

Patrick

I reckon that is a fine idea.