Box Three 1x9 Prime 9 Multi-Shift Cycling Groupset Mountain Bike - Matte Black, 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components

Perfekte Produkt sehr gut

Excellent quality set. Solid value. Nice to have a 50 tooth rear setup.

This worked great. I put it on my entry level Fuji Nevada 1.9 and it has really changed how the bike performs especially going uphill. Shift can be a little stiff, but as long as its installed and adjusted right it seems to hit its mark every time. Instructional video for install could use some work, there are times the really bad background music overwhelms what is being said so you have to guess or find other peoples video. Good product for the money.

An upgraded I’ve wanted to do for a while now was to switch to a one by system from my 3x9. I found box a while ago and waited for more reviews before purchasing. It came brand new in packaging with everything you need to install (excluding tools). If you’re doing as I have, you will also need to purchase a narrow wide front chain ring, with teeth count of your choice + short chainring bolts. Overall, I love the look of it on my bike and as far as performance, I strongly recommend you get hold of someone who knows their bike mechanics. The install didn’t take too long, but the Ty int process took me a while to figure out. When I set the tension, it would shift perfectly in the high gears range, but then would experience crazy chain jumping around the larger, low gear ranges. For me, I managed to fix the issue with some derailleur hanger alignment changes and B screw adjustments. Personally, I recommend you start with backing (loosening) out the b screw almost all the way as a start. From there I adjusted the H + L limit screws and cable tension. Afterwards, I played around with the B screw and cable tension simultaneously until I was able to get the gears to sit in place with minimal chain jumping. 👌works great for me so far and I’m sure it’ll last a while -the derailleur tension is quite strong -there’s a little play in the cassette -there’s a little play between the derailleur and hanger -had to grind down my crank arms a little bit to fit single narrow wide chain ring (silver spots in crank arm photo) -would recommend if you want your bike to feel lighter/easier to ride -32 tooth single narrow/wide chain ring

This drive train has a great range and it makes me feel like I can ride up a cliff face! 9 IS FINE!