Box Four 8S Wide Multi Shift Groupset
Our Box Four tier is for those people who just want less fuss! You're fond of Prime 9, but know 8 is enough, and surely 11-42T is plenty of range for an 8-speed cassette. Our derailleur still has the Limited Slip clutch but now arrives with a more compact cage. The custom 8-speed chain is built for abuse, although it's sophisticated enough to have its own Wide/narrow chainring. Push through fewer gears with a no-nonsense shifter. This combo will transport you to 1 by territory for less than $200.
- Box Four 8 Speed Multi Shift Shifter
- Box Four 8 Speed Wide Rear Derailleur
- Box Four 8 Speed 11-42T Cassette
- Box Four 8 Speed 116 Link Chain Natural
Please refer to the installation video available at https://boxcomponents.com/collections/supportDerailleur
No, Shimano direct mount hangers are proprietary and are not compatible with Box derailleurs.
No, traditional 8 speed systems use a Cable Pull that is not compatible with Prime 9.
No, Box Prime 9 derailleurs are not currently compatible with drop bar shifters, but we do offer a clamp for our shifters to mount on some 31.8mm drop handle bars.
We suggest removing the derailleur from the bike and using a soft bristle brush or rag with soapy water or a mild degreaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating.
Please see our installation video at https://boxcomponents.com/collections/supportShifter
Yes. All Box One Shifters come with a stainless steel shift cable.
To remove it, use a Phillips head screwdriver and turn it counter-clockwise a quarter turn You can then push the cap out by applying pressure to the cable from the other side. Please Note: The Cable Port is not a screw that un-threads from the cable port if you turn the cable port screw more than 90 degrees damage may occur.
No, traditional 8 speed systems use a Cable Pull that is not compatible with Box Four components.Cassette
No this will only work with a HG splined Shimano 9-10-11 speed freehub body.
No, The Box Four Prime 9 Cassette is optimized for use only with Box Four Prime 9 Components; running other component variations could result in poor performance.
We suggest removing the cassette from the wheel and using a soft bristle brush with soapy water or a mild degreaser. We do not recommend pressure washing, strong solvents or degreasers as they could degrade the surface coating.
Q: Can I install this on my bike that uses a b-link for my current derailleur?
A: Yes! All you need to do is remove your old derailleur and the b-link leaving the standard hanger attached to your bike frame. You can now mount your Box Components derailleur directly to the hanger on your frame.
Q: Can I install this on my bike that currently has a direct mount hanger?
A: Possibly, you will need to see if your frame manufacturer or a third party like wheelsMFG offers a standard mount hanger for your frame.
Q: Will Box be making cassettes compatible with XD or Microspline driver bodies?
A: At this time our cassettes are only compatible with HG style MTB 8/9/10 speed or road 11 speed driver bodies. Most hub manufacturers offer the different
Please see page 6 of our guide for notes regarding the 2 HG drivers.
Q: Can I use X crankset with Prime 9?
A: We recommend 1 by specific cranksets to achieve proper chainline and performance. The crankset you choose will depend on your bike frame and budget.
Q: Can I use my standard chainring with your Prime 9 drivetrain?
A: For the best performance and chain retention we recommend you use a narrow wide 11 speed chainring. This will best match the internal geometry of our chains and provide you with the best riding experience. These are some of the brands we recommend, Wolftooth Components, Raceface, One Up Components, Absolute Black.
I bought this groups to revive my old 90’s Klein mtb. So far it’s worked out great. Shift quality is smooth and positive. Great way to breathe new life into an older bike! I’m not doing anything hardcore with this bike, but based on the build quality of these parts I would have no fear hitting some more extreme terrain. Installation was fairly easy, ONCE I watched some videos online. The clutch spring is VERY strong and this threw me off during installation. Otherwise, a positive experience so far. Great quality and value here.
So far the experience has been amazing, much better and consistent shifts then the MicroShift gear set that came stock. The multi throw downshift is a huge plus!
For the price you can’t go wrong. If you are upgrading you driveline from a 3x and don’t want to break the bank, this is definitely for you. Shifters aren’t as precise as my sram but for the money I can’t complain at all. Full marks Box! Good job.
Awesome groupset for the price
I love the price and simplicity of setting up the shifter and once you set up never have to touch it again!! Sadly I did snap it while I was downhilling but thankfully the warranty on these are great and was replaced no questions asked thanks for being an awesome company Box!!
This is a **** of a 1x upgrade for under $200! I'm relatively handy and comfortable with wrenching on things, but totally new to really tinkering with bikes. After reading Box's support materials and watching their Youtube video and a few others, installation of this groupset was a breeze. It only took a couple of hours and I know that I could have completed the installation a lot quicker if I had to. Super impressed with the quality of the components. Everything seems built to last and the performance has been great -- crisp gear changes, quiet ride, superb chain tension. Lastly, Box's customer service and support is, in a word, outstanding. They were more than happy to answer my newbie questions and provide guidance. Totally impressed across the board -- thank you!