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

**Category**: functional-trainers | **Price**: ~$4,000–$4,200 | **Reviews referenced**: 100
**Last updated**: 2026-04-19
## 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