
No. 01 — Space-efficient kettlebell training and flows
BowFlex SelectTech 840 Adjustable Kettlebell
Replacing up to six individual bells, this unit consolidates footprint through an internal dial mechanism. Selector systems in adjustable weights represent the primary point of mechanical failure, demanding controlled handling rather than floor drops. Measure ceiling clearance prior to high-volume snatches or overhead presses in low rooms.
- Replaces multiple bells from 8 to 40 pounds
- Rapid resistance changes via turn dial
- Small overall floor footprint
- Internal selector dial vulnerable to drop impact
- Bulkier shell geometry than standard cast iron


