One-line verdict

Serious home gym builders seeking an all-in-one rack with switchable pulley ratios and Smith integration, trading assembly time and price for unmatched versatility over basic trainers.

How it compares

vs Force USA G3 ($2,000–$3,000): B17 wins on switchable pulley ratios and total resistance range, G3 wins on price and brand ecosystem support
vs Mikolo ANUBIS 2.0 ($2,700–$3,000): B17 wins on resistance versatility and build quality, ANUBIS 2.0 wins on price and compact footprint
vs Prime Fitness Functional Trainer ($5,500–$6,500): B17 wins on all-in-one functionality and price, Prime wins on cable smoothness and commercial-grade construction quality
vs REP Fitness FT-5000 ($2,300–$2,600): B17 wins on Smith integration and switchable ratio versatility, FT-5000 wins on standalone cable refinement and price

AI-summarized review themes

Frequently Praised

Smooth pulley operation, glides effortlessly during reps
Rock-solid stability, no wobble under heavy loads
Switchable 1:1 and 2:1 ratios, versatile for all family members
Quick full-body workouts, complete station feel
Expandable stacks to 260lbs per side, handles progressive overload

Frequently Criticized

Assembly takes nearly full day solo, tedious with many parts
High price point, pricey upgrades over prior models
Occasional missing or wrong parts, delays setup
Large footprint, needs ample garage space
Short one-year warranty, concerns long-term coverage

Best for

Dedicated garage gyms, multi-user households, space-efficient full-body training

Not for

Beginners with small spaces, quick-setup needs, tight budgets under $3k

Specifications

Spec	Value
Weight Stack Capacity	130 lbs selectable per side, expandable to 260 lbs
Cable Pulley Ratio	Interchangeable 1:1 & 2:1
Dual vs. Single Stack	Dual independent stacks
Adjustment Range & Increments	Multiple height positions, 10 lb increments
Build Quality & Frame Gauge	12-14 gauge steel, reinforced bracing
Footprint & Space Efficiency	78.7” W x 68.1” D x 88.1” H
Attachments & Accessories Included	J-hooks, safety arms, dip bars, lat bar, handles, leg holder
Multi-Functionality	Power rack, Smith machine, pulldown, landmine
Assembly Complexity	8-10 hours recommended, 2 people
Warranty & Brand Support	1 year
Noise & Cable Smoothness	Very quiet, premium pulleys

Data sources

Estimated ~100 purchase reviews via Reddit, Trustpilot, Major Fitness site
Review period: 2025–2026
Sentiment confidence: high

Major Fitness B17 Flying Fortress All-In-One Functional Trainer