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Major Fitness Lever Arms Jammer Arms for Power Racks

Major Fitness Lever Arms Jammer Arms for Power Racks

SKU: LA57

Regular price
Price: $379.99
Regular price
List Price: $429.99
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Price: $379.99
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Jammer Arms for Power Racks

Level up your rack with jammer arms for power racks—the fastest way to add explosive presses, rows, and lower-body patterns without buying a separate machine. These lever arms run bilateral or unilateral: train each side independently for balance and rehab work, or lock them together for big compound moves. Loading is flexible—weight plates for straightforward strength work or connect to your cable system for constant-tension patterns. Setup stays simple thanks to a pin-on bracket that mounts in seconds, and storage is tidy when you’re done. Whether you’re chasing power, clean hypertrophy ranges, or athletic patterns, these arms turn one rack into a full training station—more exercises, less footprint, zero drama.
Safety note: when using lever arms, counterweight your rack behind the uprights to prevent tipping.


Lever Arms (power rack attachments)

Short answer: more range, more control. Jammer arms give you machine-like arcs with barbell-style intensity, perfect for presses, rows, squats, and deadlifts—plus unilateral variants for fixing left/right gaps.


Unilateral Jammer Arms — Benefits / USPs

  • Bilateral ↔ Unilateral: switch instantly to match your goal or fix imbalances

  • Two Loading Modes: plate-loaded or cable-linked for variable resistance

  • Pin-On Speed: fast attach/adjust; no tools, minimal downtime

  • Multiple Positions: fine height control for presses, pulls, and legs

  • Compact Storage: stows against the rack to save space

  • Stability First: clear counterweight guidance for safe heavy training


Specs — Core Dimensions, Capacity, Materials

Category Detail
Compatibility Standard power racks (check upright size/hole spacing before purchase)
Attachment Pin-on lever arm brackets
Adjustability Multiple height positions on uprights
Loading Options Weight plates on pegs or cable system connection
Material Heavy-duty steel arms & brackets
Finish Powder-coat, scratch-resistant
Safety Counterweights required behind rack to prevent tipping
Dimensions / Capacity Not specified by manufacturer (contact us for current sheet)
Storage Folds/stows compact when not in use

Compare: Jammer Arms vs. Barbell vs. Cable

Feature Jammer Arms Barbell in Rack Cable Column
Guided Strength Curve Yes (lever arc) No Variable (pulleys)
Unilateral Options Native Limited Native
Setup Speed Fast pin-on Fast Moderate (attachments)
Space Efficiency High (on rack) High Medium–High
Peak Overload Excellent (plates) Excellent Good (stack limit)

Quick Exercise Ideas (bullet specs)

  • Upper: incline/flat chest presses, overhead press, bent-over rows, seal rows

  • Lower: squats, hack-style variations, RDLs, split-squat patterns

  • Power: jammer push-press, high pulls, dynamic starts

  • Accessories: unilateral raises, face pulls (via cable link), tempo negatives


Internal Links (build your setup)


Quick Highlights (scan & go)

  • Jammer arms for power racks with bilateral/unilateral modes

  • Plate-loaded or cable-linked resistance

  • Pin-on install, multiple height positions, compact storage

  • Full-body patterns: presses, rows, squats, deadlifts

  • Counterweights required behind rack for safe operation