Gronk Fitness Selectorized Dual Ab / Back v2 - Final Stock The Gronk Fitness Selectorized Dual Ab / Back v2 is a premium core strength machine designed for comprehensive abdominal and back training. Ideal for commercial gyms, school weight rooms, and serious home gym environments, this dual-function machine supports abdominal crunches, back extensions, trunk flexion, and trunk extension exercises. Engineered with a robust steel frame, the machine features a selectorized single-stack resistance system, self-lubricated bushings, and high-grade pulleys and cables for smooth operation. Its ergonomic seat and backrest, along with marine-grade upholstery, ensure comfort and durability. The compact design efficiently fits into any training layout, making it a versatile addition to any facility. Key Features Dual-function design: Abdominal and back extension machine for complete core training. Selectorized resistance: Single-stack system allows quick weight adjustments. Targeted training: Focuses on abdominal muscles, lower back, spinal erectors, and core stabilizers. Durable construction: Solid steel frame supports demanding environments. Smooth operation: Self-lubricated bushings ensure consistent exercise motion. Reliable performance: High-grade pulleys and cables support selectorized resistance. Quick adjustments: Aluminum weight stack pin for fast resistance selection. Adjustable comfort: Ergonomic seat and backrest for secure training positions. Durable upholstery: Marine-grade, double-stitched for repeated use. Compact footprint: 51.2" L × 37.4" W fits efficiently into layouts. Limited availability: Final stock for buyers seeking remaining inventory. Who This Is For This machine is perfect for fitness facilities, personal training studios, and home gyms looking to offer comprehensive core training. It's ideal for users focused on strengthening their abdominal and back muscles, and for facilities that need versatile equipment to maximize space. Specifications Specification Value Dimensions 51.2" L × 37.4" W × 57.5" H Product Weight 233.7 lb Load Capacity 176.4 lb Warranty Coverage Residential Commercial Frame & Welds Lifetime 10 Years Upholstery 2 Years 1 Year Parts Lifetime 5 Years Attachments Lifetime 1 Year Cosmetic 3 months 3 months Labor 1 Year 1 Year data-gg-gen="1.4" data-gg-date="2026-06-26"> Resources & Downloads Product Sell Sheet (PDF) Assembly Manual (PDF) ⚠️ California Proposition 65 Warning: This product can expose you to chemicals including those in rubber, foam, plastic, or coated metal components, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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