Upgrading shifter

I need to install a twist-grip shifter to replace Shimano Deore XT thumb
shifters. My wife has arthritis in her right thumb.

The front is 3 speed. The rear is 7 speed.

I'm thinking of SRAM MRX COMP 7 speed pair.

Is this the right shifter for this application?

Any tips? Any traps for me to avoid?

New cable suggestions?


Thanks,
Ken

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Those should work nice.I think they work with shimano derailors,
If not look for a older set of Attack shifters they are shimano Compatible .
7 speeds are kind of tricky to find now good luck and Happy riding.

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J/O TrailBlazer V P At Large !!

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