Yep, I had a bag of five or six pairs of LX shifters (like yours/ pictured above) and a pair of XT's. Sadly, they went missing about six months ago. Note: Some of the Rapid Fire shifters are designed to only work with V brake calipers (They have a different cable pull ratio) Some have a set screw, and the cable ratio can be changed to work with cantilever brakes. I have seen over the years where people have put together V brake rapid fire brake levers to cantilever brakes, and they have very, very poor stopping power (no bite), because of the incompatibility.