VO shifters to replace broken Suntour M90 thumb shifter?

[Pancake]

My Suntour M90 shifter mount  broke, the mount threads are stripped  (it’s the “left” / “front” 3 speed friction shifter but used upside down on the right side / rear shifting). 

Does anyone know if these Velo Orange shifter mounts would work as a replacement? They would be shifted by a Silver2 lever that was already on the right side (rear shifting).

https://velo-orange.com/products/vo-thumb-shifter-mounts-22-2-23-8?variant=50647831111&utm_source=esc&utm_medium=email&utm_campaign=nowbackinstock

Bonus question: the left/front mounted shifter mount would be using the original Microshift shifter lever, any idea if the Velo orange mount would also work with that? Or should I be in the market for a silver2  shifter lever?

Thanks in advance,

Abe

[Pancake]

I should have mentioned which bike and bars and derailers:

Cheviot 60cm 

Tosco 55cm bars. The shifters are mounted low (near the flat section of the handlebars where the stem attaches). 

Front derailer: Shimano RX100 double (old, same pull as most others), probably FD-A551 model.

Rear derailer: SRAM GX 10 speed (but with a cable pull modifier from jtek)

Front shifter: Sunrace M90, original shift lever.

Rear shifter: Sunrace M90, Silver2 shifter (upside down / on the right side but made for the front/left).

Fun note: I got the old M90 shifter mount to work for now by taking installing a slightly longer bolt and it just punched through the aluminum mount and is holding nicely ... for now. 

Take care,

Abe

[Michael Morrissey]

I haven't tried it myself but I believe the Velo Orange shifters look like they would work. If you are using a Microshift lever, I would get a Microshift thumbie from Paul though:

https://www.paulcomp.com/shop/components/drivetrain/shifting/microshift-thumbies/

Also, if you are doing friction shifting, why do you need the Jtek cable pull modifier? 

I have a Silver1 shifter on a thumbie with the GX10 clutch derailleur and it works just fine without a cable pull modifier (running friction shifting only).

Good luck!

M

[Pancake]

Thanks for the suggestions Michael. 

VO vs. Paul - I can make the difference of $30 for a Sunrace thumbie vs. 2 VO shifter mounts for $70.  But $68 for a single Paul shifter mount is too steep for my commuter Cheviot. The VO seems to be a sweet spot in the middle of the price range and nice silver at that. 

Cable Pull Modifier: honestly, I didn't try it on this thumbie, but I needed added cable pull on A Microshift 9 speed bar end shifter so I figured I'd need it for this as well. I didn't get a jtek for that bar end shifter, I just installed a brass strip that's about 1mm thick and curved it around that cable guide of the shift lever to add to the cable pull ratio.  I'll try the SRAM GX 10 speed derailer without the cable pull modifier and report back! 

Anyone else have specific experience with the VO shift mounts working in this setup? 

Take care,

Abe