microSHIFTMezzo Thumb Shifter Thumb-TAP 7-Speed Optical

Used these to upgrade an old bike that was equipped with 21 speed grip shifters. These thumb shifters were a breeze to install and tune. The thumb shift design allowed me to keep my existing brake levers. This kit comes with both left and right shifters and new cables.

works as advertised, easy to install. nice option for vintage upgrade

Very good quality for the money. It shifts actually better than my normal shimano budgets.The only downside is that it's made of plastic, so do be careful of not tightening the hex screw too much or else the clamp will literally break.

For the price, these are really well-made. The picture makes them look a lot smaller than they are. I do wish they were a little quieter, and the short lever was a little easier to reach. They're otherwise an amazing buy.

These are a low budget yet effective replacement for junky twist shifters on department store bikes. They work great with the factory derailleurs and index the shifts without the annoying grinding of the cheap twist shifters they replaced.

I bought these to replace the Shimano shifter/brake combo on a thirty year old GT Talera purchased at a garage sale. These work great with the original Shimano Alivio drivetrain and shift the bike smoothly. This old bike is rideable again! Highly recommended.

Mi esposo compro esto para una bicicleta y apenas los coloco y se rompieron mala calidad es mejor agarrar algo más caro pero de mejor calidad

Fantastic replacement for grip shifters for kids. Took 10 minutes to swap out the grip shift on my son’s 24” mtb. The shifting is so much easier for him now, for the price you can’t beat these. I find the little ones can’t twist the grip shifts up easy enough. These fix that problem.