Convient parfaitement à mon vélo et les chamgement des vitesse sont fluide.

Good quality trigger shifter.

My bicycle originally came with grip shifters which I replaced them with shimano thumb shifters (the silver one in the picture), but the thumb shifters stick out on top of the handlebar, which not only looks strange but is also easy to bump into, especially when transporting the bike in the back of my car. This shimano goes under the brake lever so it does not protrude. I was initially concerned about its compatibility with my non-Shimano brake levers, but it fits fine. The shifter works well—I have both sides—and it’s easier to shift compared to a thumb shifter or grip shifter. You use your thumb to shift with the front lever and your index finger for the rear lever, which operates between the handlebar and brake lever. As with most Shimano products, it came in a blue/silver box with the shifter cable pre-installed and a cable end cap included, but no cable housing.

Works great with my Shimano derailleurs

I have 3 chainrings in the front and 7 cogs in the back. Along with this shifter I also bought the matching shifter for the other side and two Shimano derailleurs - the Altus FD-MD310 and RD-MD310 because I wanted a matching groupset. Installation was easy and it was mostly shifting out of the box. I have to adjust indexing but I can tell it is running smoothly. If you are using these for an ebike I would think twice because I'm having a lot of problems getting everything to clear the brake levers and throttle body and such. For a regular bicycle I'd say they're decent for what they are, just don't expect them to last forever because these types of shifters will break eventually.