CYSKY Bicycle Rear Derailleur 6/7/8/9/10/11 Speed Direct Mount for Mountain Bike Road Bike, Compatible with Shimano Sram Front Rear Derailleurs

Now I'm going to tread lightly here and it's from a legal standpoint. DO NOT PURCHASE FOR A CHILDS BIKE. INSPECT THE ENTIRE ITEM MAKE SURE THERE ARE NO BROKEN OR MUSSING PARTS. if you are new at bike building and repair this product is not for you. Just please be careful...

This ten speed derailleur is a must buy, at first I was heaistant cos of the price it after a few trail rides, it’s well worth the money, the quality is great, comparable to a shimano, and the best part is it can handle a 52 tooth chainring, it’s basically already ready, just put it on and go.

My old derailleur gears were metal so I'm going to have to replace these gears that are all plastic plastic. Nothing fits. Oops.

Does exactly what it is susposed to. No problems during installation. Like any derailleur it needs to be adjusted properly.

Yeah, this is a derailleur and not a brake but nothing rhymes with derailleur. I like wake, especially now that there's a lack of Shimano on the market.I'm not currently running my 48T flywheel but plan to when I go to the hills. For that reason I got this rear derailleur in the 50T expanded version. If you plan to upgrade or aren't sure what flywheel you want to run but like to keep your options open, spend the extra $4 and get the the 50T. It includes a red tail hook extender that you don't have to install until you go large.It took a while to get this adjusted to my Shimano 7 speed flywheel. It's a stock Schwinn setup that is pretty common in box bikes. What worked for me was to set the high limit screw on the smallest gear to line that up, then clunk over to gear 5 and set the cable adjusting knob to line up. Then set the low limit on the largest gear.I've been running this for a little under two weeks and it's working well. I commute daily with it on gravel, sand, roads and sidewalks. The largest drop I experience is the 5 inches or so the sidewalks hit me with. I haven't had any chain skips or drops.