Bowflex SelectTech 840 Adjustable Kettlebell, 8 - 40 lbs - Black
Amazon price as of Oct 23, 2026, 5:28 AM CDT
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Curated by Môdern Space Gallery. Purchased on Amazon.
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Bowflex SelectTech 840 Adjustable Kettlebell, 8 - 40 lbs - Black
The Bowflex SelectTech 840 Adjustable Kettlebell packs 8, 12, 20, 25, 35, and 40 lbs into a single kettlebell, genuinely adjustable with a simple turn of a dial. Whether you're swinging for power, squatting for strength, or moving through a HIIT circuit, you can change resistance in seconds instead of walking across the room for a different weight.
Underneath the dial is a heavy-duty metal-plate core enclosed in durable molding, built for smooth, quiet handling through swings, rows, squats, presses, twists, and lunges. A wide ergonomic handle keeps grip comfortable even as sets get more intense, and the Bowflex app adds 24 trainer-led exercises if you want structured guidance. The compact footprint genuinely replaces up to six separate kettlebells, a practical fit for apartments, garages, or any home gym where space is tight.
A few things about this item:
- Adjusts across 8, 12, 20, 25, 35, 40 lbs
- Dial-based weight adjustment
- Replaces up to six separate kettlebells
- Wide ergonomic handle
- 24 trainer-led exercises via Bowflex app
Why we picked it: Genuinely six weights in one dial-adjustable kettlebell, eliminating the need for a full kettlebell rack.
Best for: Home gyms or small spaces where you want a range of kettlebell weights without the storage footprint.
Worth knowing:
- Tops out at 40 lbs, which may not be enough resistance for advanced lifters
- It's a single adjustable unit, so multiple users need to reset the dial between uses
Reasons to consider it:
- Six weights in one unit eliminates a full kettlebell rack
- Dial-based adjustment switches weights in seconds
- App access adds 24 guided exercises
Specifications:
- Brand: Bowflex
- Color: Black
- Weight range: 8, 12, 20, 25, 35, 40 lbs
- Weight selection: Turn dial adjustment
- Material: Metal plates with durable molding
- Manufacturer model/reference: 100790
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