For athletes and home gym enthusiasts, jammer arms or lever arms extend the versatility of 2×2 and 3×3 power racks. They enable targeted rows, presses, deadlifts, belt squats, curls, and more with adjustable height and angles. This guide reviews five popular options, comparing build quality, compatibility, and load capacity to help you choose arms that fit your rack and training goals.
Summary of Selected Products
| Product | Brand | Rack Compatibility | Approx. Capacity |
|---|---|---|---|
| SELEWARE Adjustable Lever Arms Jammer Arms | SELEWARE Store | 2″ x 2″ and 3″ x 3″ racks | High (manufacturer lists versatile use) |
| Kipika Power Rack Jammer Arms | Kipika Store | 2×2 power racks | 600 lbs |
| Mikolo 3″x3″ Power Cage Jammer Arm | Mikolo Store | 3×3 power cages with 1″ holes | 600 lbs |
| VivaZen Heavy-Duty Adjustable Jammer Arms | VivaZen Store | 2″ x 2″ power racks | 650+ lbs per arm |
| SELEWARE Adjustable Lever Arms (3″ x 3″ version) | SELEWARE Store | 3″ x 3″ power racks | High capacity |
SELEWARE Adjustable Lever Arms Jammer Arms (2×2 and 3×3)
SELEWARE’s lever arms convert a power rack into a full-body training station with robust versatility. The arms support a broad set of exercises, including rows, pushes, deadlifts, belt squats, curls, and guided deadlifts. Designed to engage shoulders, arms, legs, the upper back, and core, these arms provide multi-angle training to address muscle imbalances and strength gaps. Height can be adjusted with 10 levels, letting users tailor leverage and range of motion for different body types. Installation is straightforward: slide the insert into the rack hole and lock it by swinging the lever arm. Compatible with both 2” x 2” and 3” x 3” racks using standard 5/8” or 1” holes.
Key features to note: broad exercise compatibility, adjustable height, and an easy locking mechanism that minimizes setup time between movements. The 10-position height adjustment helps accommodate users from beginners to advanced lifters, enabling progressive overload across compound movements. When choosing, confirm your rack’s hole size and its compatibility with the 5/8” or 1” hole options to ensure a secure fit.
Kipika Power Rack Jammer Arms
Kipika offers a comprehensive full-body training system for 2×2 power racks. These lever arms enable presses, rows, deadlifts, squats, and dips, helping lifters target shoulders, back, arms, legs, and the core. A highlight is the 14-position grip height adjustment, ranging from 1.3 ft to 3.59 ft, with five locking positions for neutral, pronated, or angled grips. This setup supports smooth transitions between lifts while maintaining joint-friendly angles. With a 600 lb capacity and compatibility with 2×2 racks using 5/8″ or 1″ holes, the Kipika arms suit many home and garage gyms. Be sure to verify rack hole size before ordering.
Benefits include precise grip customization and a robust build that balances strength with user-friendly adjustments. For integrated training programs, the extra grip options can help address unilateral weaknesses and improve overall lifting technique. Ensure your rack’s hole size and compatibility with 2″ x 2″ frames when planning installation.
Mikolo 3×3 Power Cage Jammer Arm
The Mikolo 3×3 Jammer Arm is designed for a 3” x 3” upright power cage with 1″ hole plates. It extends the power rack’s functionality for belt squats, rows, curls, and other compound movements, integrating seamlessly with an outside-position setup for a multipurpose training zone. The unit includes a rubber stopper and a black powder coating to protect equipment and prolong service life. It offers eight adjustable positions and a variety of handles, including neutral and angled grips, to customize training angles and comfort. Weight plate holders run 9.44” long with a 30 mm diameter, and the stated weight capacity is 600 lbs, aligning with common rack standards.
Practical considerations include ensuring your 3×3 cage uses 1″ hole plates and that the arm’s mounting options fit your rack’s geometry. The eight-position adjustability helps tailor leverage for different lifts, which can improve form and force production. Always confirm compatibility with your cage before purchase to avoid fit issues.
VivaZen Heavy-Duty Jammer Arms
VivaZen Jammer Arms are built for high-load training with a 650+ lbs per-arm capacity, meeting the needs of serious lifters. They are designed for vertical motion to optimize rows, presses, deadlifts, squats, and curls. The arms support unilateral or bilateral training, enabling targeted shoulder, core, and leg work while maintaining stable, secure performance. The design emphasizes fixed, ergonomic handles that stay locked in place during heavy sets, reducing the risk of handle detachment or slip. These arms are compatible with 2″ x 2″ power racks and feature industrial-grade alloy steel and scratch-resistant powder coating for durability in demanding environments.
Considerations when selecting VivaZen arms include the balance between load capacity and the range of motion offered by the handles. The emphasis on locked handles supports safer performance during explosive lifts. Users should confirm rack compatibility (2″ x 2″ frame and hole sizing) and ensure adequate clearance for full extension in their gym layout.
SELEWARE Adjustable Lever Arms (3″ x 3″ Version)
This SELEWARE offering extends the same versatile functionality to 3″ x 3″ power racks, with the familiar capacity to support rows, pushes, deadlifts, belt squats, curls, and guided deadlifts. The 10-level adjustable height mirrors the 2×2 version, enabling users to customize leverage to their height and limb length. The installation process remains simple: slide the insert into the rack hole and swing down to lock. Compatibility with 3” x 3” racks using 5/8” or 1” holes is highlighted, ensuring a secure, stable setup for heavy lifts and dynamic movements.
When evaluating this version, confirm that your rack uses 5/8” or 1” hole sizes and that the 3” x 3” frame can accommodate the arm’s mounting geometry. The 10-position height range and robust locking mechanism contribute to a dependable training accessory for advanced lifters seeking additional leverage and exercise variety.
Buying Guide: Key Purchase Considerations
- Rack compatibility: Most arms support 2″ x 2″ or 3″ x 3″ racks with 5/8″ or 1″ hole sizes. Verify your cage or power rack specifications and hole dimensions before ordering.
- Load capacity: Arm assemblies commonly offer between 600 lbs to 650+ lbs per arm. Match capacity to your training program and the forces generated by your lifts.
- Adjustability: Look for multi-position height settings and multiple grip options (neutral, pronated, angled) to accommodate different lifts and body types.
- Ease of installation: A simple locking mechanism and straightforward insertion can save setup time between exercises.
- Durability: Powder-coated finishes and robust joints reduce wear and improve longevity in high-use environments.
- Safety and stability: Confirm secure locking and pivot quality to prevent slippage during heavy sets, especially for dynamic movements like rows and presses.
- Exercise compatibility: Consider whether you need versatility for rows, presses, deadlifts, belt squats, curls, and accessory movements like shrugs or dips.
Comparative Considerations
- Versatility vs. specialization: If you need broad exercise options, prioritize models with multiple handle positions and wide compatibility. If you mostly perform bench-related movements, ensure the arms suit your rack footprint and do not intrude on space for other equipment.
- Angle and grip: Arms offering angled grips can reduce joint strain and improve muscle engagement. Neutral grips are generally friendlier on wrists and elbows for pressing and rowing.
- Physical footprint: Some arms extend further from the rack, which may affect clearance in smaller gyms. Measure your training area to avoid interference with other equipment.
These jammer arms provide flexible, high-capacity options to expand a power rack’s functionality. By examining rack compatibility, load capacity, adjustability, and installation ease, you can select a model that aligns with your training goals and space constraints.
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