M4-2.0 Ultra/Standard Weight Stack Upgrade Kit Designed exclusively for existing M4-2.0 Ultra/Standard owners who wish to upgrade their unit to the Elite version, this Weight Upgrade Kit elevates your rack into a more powerful, flexible, and fully refined training system. Built specifically for the M4-2.0 Ultra/Standard frame and pulley
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I really like the weight stack and the rig but I think I’m starting to be stronger then the whole weight stack when doing lat pull down, lol. Kinda wish we were able to add even more stacks weights to it.
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Augie · September 9, 2026
Fairly easy to install and the design is straight forward. Still enough room to fit 180lbs of bumper plates on the horns if needed. Also enjoyable that it frees up some room inside with the shorter horns.
130lbs on a 2:1 cable system is enough for almost any 1-handed exercise. Would be nice if they sold an add-on with an additional 4 plates per side, though.
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Tyler · August 21, 2026
Shipping was fast and product was expected. I have the original M4 not the 2.0 so you have to do some modifications to get this to work.
First you need to remove all the plastic guides from each plate, and I have a 3d printer so I just made new ones as the plastic holes are too small. Then you need to buy a pulley and a bolt as they assume you already have it. Then you don’t have to do this but cut the cable and crimp a new end to the cable to make it shorter as it will be too long and will hang. I used a hand hydrolic crimper I already had and it worked like a charm. Not sure why they wouldn’t just sell a kit to let the non 2.0 racks use this as they could make some money on that too. Otherwise it’s a great product with little installation if you have the 2.0 already.