Universal Bike Bicycle Rear Derailleur Guard Rack Protector, Gear Shifter Chain Guard, Dial Protector

Works great. Fits very snug and is very ridged

Like I said Seams solid that’s what I ordered haven’t put it on yet!

It's strong but barely covers the cassette.

The derailer protects the wire on the right hand side so if the bike falls over it doesn’t break the wire to the motor it protects the motor wire

its a good protection to mi shifterworks perfect

Had to dremel-out the axle hole to mount it, but no big deal. I put it on an e-bike so the axle may be a bit bigger. Seems well made and sturdy enough to do it's job.

Just put the guard on. Looks like it will keep the kids from bending the derailer. We will see after a couple crashes.

I had to make the hole larger so it would fit. Once I got it on worked it works well