My wife currently has trigger shifters on her CF road bike and needs to change to twist grip shifters due to problems with her left hand. FD is Shimano 105 triple, RD is Deore 9-spd. I understand Shimano and SRAM both make models that will work. Would appreciate some model number suggestions.
Also, currently have MTB bars which I will probably keep on her bike, but not being familiar at all with twist grip shifters is it possible to install these shifters on bullhorn bars? Said differently, does the clamp on these shifters open up enough to slide over the curve(s) in the BH bars?