Bicycle Mechanics - Finding a compatible groupset for a hybrid

I have a Giant Cypress DX, which has a 7-speed cassette and a triple crankset. I've been having a lot of shifting issues lately, and yesterday the right grip-shift broke, so the only way to keep the bike in a particular gear is by holding the shifter in place.

I know I could just replace the shifter for $20-30, but I had already been thinking about converting to a double and was wondering how to tell if a particular groupset is compatible with my bike. Most of the double crank groupsets I was looking at were for road bikes, so the shifters wouldn't work on a flat bar.

Anyone have any ideas?

I have a Giant Cypress DX, which has a 7-speed cassette and a triple crankset. I've been having a lot of shifting issues lately, and yesterday the right grip-shift broke, so the only way to keep the bike in a particular gear is by holding the shifter in place.

I know I could just replace the shifter for $20-30, but I had already been thinking about converting to a double and was wondering how to tell if a particular groupset is compatible with my bike. Most of the double crank groupsets I was looking at were for road bikes, so the shifters wouldn't work on a flat bar.

Anyone have any ideas?A flat bar shifter for a triple will shift a double.Cheap,easy, dirty fix is a friction thumb shifter.

A flat bar shifter for a triple will shift a double.Cheap,easy, dirty fix is a friction thumb shifter.
For the front, friction is not only cheap, easy, dirty, it's also superior to any sort of indexing. In fact, if it were my bike, I would just get a nice pair of friction-mode thumb shifters, scrap the grip shifts, and enjoy the freedom of being able to make significant changes in my gearing (double vs. triple, 9-speed-spaced 8-speed vs. 7-speed, etc.).

For the front, friction is not only cheap, easy, dirty, it's also superior to any sort of indexing. In fact, if it were my bike, I would just get a nice pair of friction-mode thumb shifters, scrap the grip shifts, and enjoy the freedom of being able to make significant changes in my gearing (double vs. triple, 9-speed-spaced 8-speed vs. 7-speed, etc.).Uh...Er...Excuse me John,but your retro is showing.

Sram sells a friction grip shifter.

Yeah, that's what I ended up doing. I think I'll just keep this bike as-is, and look into getting a road bike. I tested out a really nice Fuji Bordeaux from last year with all Campy components which I really liked. I think I may pick that bike up.

Thanks for the advice, everyone.