Shimano Bike Rear Derailleur RD-TY300 6/7 Speed Rear Derailleur Road MTB Bike Mountain Bike Direct Mount

I watched a few Utubes on installation for setup for the Derailer, which really helped. The instructions really don't help. If one looks closely one can see the H near the high speed screw and the L for the Low speed screw. They are hard to see black against black. I adjusted the high speed according to utube. I then connected the cable, with a little slack. The derailleur was able to take me to the lowest gear. I had to take the unit apart to mount the derailleur. I put some mercury quick silver oil on the bushings. They're no bearing in these little sprockets. I guess one pays more to get bearings. Overall I'm satisfied with the product which works. The bike is fairly old therefore it doesn't need the top of the line.

Bought for my son's 24" mountain bike to replace the original old & worn parts. easy install, shifting operates smoothly & the chain doesn't slip constantly like before.

Works as intended

Attempting to upgrade 1983 Schwinn Traveler drivetrain to GRX, not going well… It’s PARTS availability!Chose the low-cost Tourney 3x drivetrain, as an interim upgrade, read several reviews, rating this particular component, as reliable and functional, at the cost!May remove complete Tourney drivetrain, to move over to siblings bike, if the GRX Project, ever gets off the ground and on to my bike!

Great product and pricing

This was the exact part needed to fix our daughters Schwinn bike.

Exact part. Works great

I have had two of these. In the first one, the bolt holding one of the wheels fell out while on the road. the bike was unpeddable. the second flat out just sheered in half. Chain tension is perfect bike shop guys are blown away. Although the price is good, it's a lot of plastic that just does not hold up.

Llegó en tiempo y forma, se vé algo robusto y resistente. En cuanto se lo monte a la bicicleta y pruebe su funcionamiento actualizaré mi comentario.

This is a sturdy derailleur that works well for normal road use and light off road use. Tourney derailleurs are a work horse. I am very pleased with my purchase.

No es Ultegra pero es bueno

Great upgrade for my bike. Changes gears smoothly. Easy set up and adjusting.

Buen producto, la calidad es estupenda, le quedo muy bien a mi bicicleta.