Box Three Prime 9 Multi Shift Non E-Bike and Single Shift E-Bike Cycling Groupset 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components
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Box Three Prime 9 Multi Shift Non E-Bike and Single Shift E-Bike Cycling Groupset 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components

4.2/5
Product ID: 234683201
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12 interest-free installments with tabby

Details

  • Brand
    Box
  • Color
    Black
  • Material
    Alloy Steel
  • Mounting Type
    Braze-On Mount
  • Manufacturer
    Box
🔩Stainless steel braided cable shifter
⚙️9-speed ultra-wide 11-50T cassette
🚴‍♂️Lightweight nylon composite derailleur knuckle

Description

🚴‍♀️ Gear up, shift fast, and leave the pack behind!

  • BUILT TO LAST - Stainless steel braided cable and hardened solid pins ensure durability that outlasts your longest rides.
  • SMOOTH SILENT - Bearing pulleys and limited slip clutch reduce friction and chain slap for whisper-quiet performance.
  • SHIFT LIKE A PRO - Multi-shift lever moves up to 3 gears per click for lightning-fast transitions.
  • CONQUER EVERY TERRAIN - X-Wide 11-50T cassette offers unbeatable gear range for hills and flats alike.
  • EFFORTLESS INTEGRATION - Compatible with traditional derailleur hangers and HG freehub bodies for seamless upgrades.

The Box Three Prime 9 Groupset is a complete 9-speed 1x drivetrain solution designed for non e-bikes and single shift e-bikes. Featuring a multi-shift shifter with stainless steel braided cable, an ultra-wide 11-50T cassette, a lightweight yet durable rear derailleur with limited slip clutch, and a polished, treated chain, this groupset delivers smooth, reliable, and precise gear changes across diverse terrains. Engineered for longevity and compatibility, it’s the perfect upgrade for riders seeking performance and durability in one sleek package.

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Specifications

Number of Teeth50
UPC639266097488
Case MaterialAlloy Steel
Item Package Dimensions L x W x H11.6 x 10.3 x 7.2 inches
Package Weight1.84 Kilograms
Item Dimensions LxWxH12.5 x 12.5 x 4.9 inches
Brand NameBox
Warranty DescriptionLimited Lifetime
Model NameMulti-Shift X-Wide Groupset For Non E-Bike
Suggested Usersunisex-teen
Part NumberBX-DT3-P9AMXW-KIT
Included ComponentsChain, Cassette, Rear derailleur, Shift Housing Kit, Shifter
Size11-50T X-Wide Non E-Bike Groupset
Sport TypeCycling

Reviews

4.2

All from verified purchases

E**T

Super positive shifting under a load

The Box Three Prime 9 groupset is installed on an custom built mid-drive electric bike with a 1000 watt motor. I was a little hesitant to try such a wide range cassette because the 12 to 50 tooth spread over 9 cogs seemed aggressive but was willing to give it a try. I'm glad I did. The shifts are positive under a load with no issues.

B**Y

As good as the big brand names.

I saw this on YouTube and was curious to try it, so I did. To my surprise this group set are really good. It was a little stiff at the beginning but eventually it softens and shifted really quick. I would definitely recommend it to anyone out there that wanted to make their old 9 speed cassette converted to 1x9. Try it you will never regret it!

N**Z

3x9 conversion on my 2004 model

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

C**S

Good groupset, bad chain but great customer service.

I really like the groupset so far, but I just set it up and cleaned the oil off the chain from the package, and I noticed I'm missing a roller on my chain.Update: I got in contact with the seller and they replaced my chain with an even better Box 2 Nickel plated chain. Definitely stoked now. Thank you!

F**1

It works

Works awesome... Highly recommend

J**N

Buy Microshift, Shimano, or garage sale bike parts instead.

Looks better than performs. Save some money and buy a better group set or buy Microshift components. Needs constant adjustment to the derailleur to keep chain from bouncing from one gear to another. Wouldn't recommend to anyone, enemy or otherwise.

J**T

Worked great to convert my 7 speed

Swapped out the stock 7 speed factory crap and put a breath of life into my bike.Can climb better and has a higher top speed no. This groupset has a great range!Haven't had one dropped chain since I've swapped!

N**

Garbage

Could never get it tuned brand new derailleur hanger and everything. Bought the scram eagle NX yeah it cost a bit more but it works perfectly.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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Secure Transaction
12 interest-free installments with tabby

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Box Three Prime 9 Multi Shift Non E Bike Single | Desertcart UAE