Quick & Space-Saving Storage
This kit comes with a movable weight holder that you can easily secure to the top when not in use, keeping your workout area neat and freeing up floor space.
K6-2.0 Ultra Selectorized Weight Stack Upgrade Kit - 160 lb
Sale price$599.99
Regular price (/)
Built to Go Heavy
430 lb Total Load Capacity
This upgrade kit combines a 160 lb selectorized stack with a movable weight holder (supports up to 260 lb plates + 10 lb holder weight), giving you up to 430 lb total resistance. Use the stack for fast, easy weight changes, then add the holder for heavy lifts. Enjoy faster workouts, smoother strength progression, and the freedom to push your limits at home
KEY FEATURES
5° Upward-Angled Design
Why is the horn designed to angle upwards?
Because it prevents plates from slipping during use and keeps the weight centered, improving overall balance and stability for safer, smoother workouts.
Clear Guidance for Optimal Use
Our holder features prominent labels with instructions and key warnings—like avoiding uneven weight loading to ensure smooth, trouble-free operation every time.
Easy Upgrade with the Trolley Design
Thanks to the upgraded trolley, you can convert your K6-2.0 Ultra from plate-loaded to weight stack quickly and easily—no need to remove cables or complicated disassembly. This design makes upgrading fast, clean, and hassle-free.
PRODUCT DIMENSIONS
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Overall Dimensions29.9" (L) x 3.5" (W) x 21.3" (H)
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Total Weight Stack160 lb
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Increment10 lb per plate
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MaterialSteel
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Length of Weight Horn8.3"
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Self Weight of Weight Holder10 lb
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Weight Capacity Of Weight Holder260 lb(130 lb per side)
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Number of Package3
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CompatibilityOnly for K6-2.0 Ultra
PRODUCT OVERVIEW
K6-2.0 Ultra Weight Stack Upgrade Kit
Designed exclusively for K6-2.0 Ultra owners, this Weight Upgrade Kit elevates your rack into a more powerful, flexible, and fully refined training system. Built specifically for the K6-2.0 Ultra frame and pulley path, this kit is not compatible with any other racks or trainers.
Dual-Stage Resistance, One Seamless System
This upgrade combines a 160 lb selectorized weight stack with a stainless steel add-on weight holder, giving you both precision control and heavy-load potential in one clean setup.
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160 lb Weight Stack (10 lb increments)
Featuring 16 plates at 10 lb per increment, the stack allows fast, accurate resistance changes with a simple pin—ideal for functional training, isolation work, and progressive overload. -
Movable Weight Holder (10 lb self-weight)
Each side supports up to 130 lb of additional plates, unlocking higher resistance for heavy pulls, presses, and lower-body movements when you’re ready to push beyond the stack. When not in use, the weight holder can be quickly secured to the top for clean, space-saving storage.
Once you experience stack-based training, going back to constant plate swapping simply doesn’t make sense.
PACKAGE INCLUDED:
- 16 × 10 lb Weight stack plates (160 lb total)
- 1 × Movable weight holder (10 lb self-weight)
- 1 × Weight selector pin and integrated labeling
- 1 × Installation Manual
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Overall Dimensions29.9" (L) x 3.5" (W) x 21.3" (H)
-
Total Weight Stack160 lb
-
Increment10 lb per plate
-
MaterialSteel
-
Length of Weight Horn8.3"
-
Self Weight of Weight Holder10 lb
-
Weight Capacity Of Weight Holder260 lb(130 lb per side)
-
Number of Package3
-
CompatibilityOnly for K6-2.0 Ultra
K6-2.0 Ultra Weight Stack Upgrade Kit
Designed exclusively for K6-2.0 Ultra owners, this Weight Upgrade Kit elevates your rack into a more powerful, flexible, and fully refined training system. Built specifically for the K6-2.0 Ultra frame and pulley path, this kit is not compatible with any other racks or trainers.
Dual-Stage Resistance, One Seamless System
This upgrade combines a 160 lb selectorized weight stack with a stainless steel add-on weight holder, giving you both precision control and heavy-load potential in one clean setup.
-
160 lb Weight Stack (10 lb increments)
Featuring 16 plates at 10 lb per increment, the stack allows fast, accurate resistance changes with a simple pin—ideal for functional training, isolation work, and progressive overload. -
Movable Weight Holder (10 lb self-weight)
Each side supports up to 130 lb of additional plates, unlocking higher resistance for heavy pulls, presses, and lower-body movements when you’re ready to push beyond the stack. When not in use, the weight holder can be quickly secured to the top for clean, space-saving storage.
Once you experience stack-based training, going back to constant plate swapping simply doesn’t make sense.
PACKAGE INCLUDED:
- 16 × 10 lb Weight stack plates (160 lb total)
- 1 × Movable weight holder (10 lb self-weight)
- 1 × Weight selector pin and integrated labeling
- 1 × Installation Manual
FAQS
Why is this upgrade kit only compatible with the K6-2.0 Ultra and not other racks like the K6-1.0 or HR05?
This kit is designed specifically around the K6-2.0 Ultra’s tube spacing of 178 mm (7.01 in). Other racks, including the HR05, use different spacing and layouts, so the stack will not align correctly. Unless you’re ready to bring some serious creativity and custom fabrication into the mix, this upgrade is intended for the K6-2.0 Ultra only.
Can I buy multiple kits to increase the weight stack beyond 160 lb?
No. The 160 lb stack is carefully matched to the K6-2.0 Ultra’s cable length and pulley travel. Adding more stack plates would require longer cables, which can affect smoothness, range of motion, and overall usability. For optimal performance and safety, the system is designed to work as a single 160 lb stack.
Is the weight holder limited to 260 lb max?
The 260 lb rating is mainly limited by the horn length, not the strength of the holder itself. Even though we use stainless steel and have extended the horn length to 8.6 inches, standard Olympic plates typically allow up to 130 lb per side.
If you use steel plates, the holder can technically store much more weight—up to around 1000 lb in plate storage. However, for balance, safety, and everyday training use, we recommend keeping the weight holder load at around 500 lb or less for optimal performance.