The British relationship with the gym has changed. What once required a monthly direct debit and a twenty-minute drive now fits in the corner of a spare bedroom. The pandemic accelerated a trend that was already building — and at the centre of Britain's home fitness revolution sits a pair of dumbbells that replaces an entire rack.
The Bowflex SelectTech 552 adjustable dumbbells have been a quiet sensation in UK fitness circles. They replace fifteen sets of traditional dumbbells with a single, ingeniously engineered pair that adjusts from 2kg to 24kg in seconds. We've lived with them for three months — here's our unvarnished verdict.
Build Quality & Engineering
The SelectTech system is built around a patented dial mechanism that allows you to select your desired weight by simply turning a dial at each end of the dumbbell. The mechanism clicks through fifteen distinct weight settings: 2kg, 3kg, 4kg, 5kg, 6kg, 7kg, 8kg, 9kg, 10kg, 11.5kg, 13.5kg, 16kg, 18kg, 20.5kg, and 24kg.
The weight plates are constructed from durable moulded steel with a protective coating that prevents corrosion — important in the sometimes-damp environments of British garages and garden rooms. Each plate slots into a dedicated cradle that doubles as a storage tray, keeping your workout space tidy.
The handle is ergonomically contoured with a rubber grip that remains comfortable even during high-rep sets. At maximum weight (24kg per dumbbell), the overall length is approximately 43cm — compact enough for most exercises, though some users may find them slightly bulkier than traditional fixed-weight dumbbells.
The selection mechanism itself feels robust and precise. After three months of daily use, there's been zero degradation in the dial's click accuracy. Bowflex clearly over-engineered this component, and it shows.
The UK Home Fitness Landscape in 2026
The numbers tell a compelling story. According to the UK Active Research Institute, home gym equipment sales in Britain increased by 340% between 2019 and 2024, and the trend shows no sign of slowing. The average British gym membership costs £40–£65 per month — that's £480–£780 per year. The SelectTech 552 pays for itself within six to eight months.
But this isn't just about money. The convenience factor is enormous. No commute, no waiting for equipment, no peak-hour crowds. For time-poor professionals — particularly parents juggling childcare and careers — the ability to complete a full strength training session in twenty minutes at home is genuinely life-changing.
The rise of fitness content on YouTube and social media has also played a role. British fitness creators have popularised efficient, dumbbell-focused programmes that deliver genuine results without requiring a commercial gym. The SelectTech 552, with its wide weight range, is ideally suited to these programmes.
Why the SelectTech 552 Stands Out
- Replaces 15 pairs — From 2kg to 24kg in a single, compact unit
- Instant weight changes — Dial adjustment takes under 5 seconds
- Space-saving design — Footprint of just 43cm × 22cm per dumbbell
- Durable construction — Steel plates with corrosion-resistant coating
- Ergonomic grip — Comfortable rubber handle for extended sessions
- Cost-effective — Cheaper than buying equivalent fixed-weight sets
Getting Started with the SelectTech 552
Step 1: Setup & Placement
Position the cradles on a flat, stable surface. A dedicated dumbbell stand (sold separately) is ideal, but a sturdy table or shelf works perfectly. Ensure there's adequate space around each cradle for the dial mechanism to operate freely.
Step 2: Weight Selection
Turn the dial on each end to your desired weight — both dials must show the same number. The selected plates will lock into the handle, while the unused plates remain in the cradle. Always confirm both ends are set identically before lifting.
Step 3: Lifting & Returning
Lift the dumbbell straight up from the cradle. After your set, return the dumbbell to the cradle before adjusting the weight. Never attempt to change the weight while holding the dumbbell — this can damage the selection mechanism.
Step 4: Maintenance
Wipe down with a dry cloth after use. Check the dial mechanism monthly for debris. If stored in a garage, consider a dehumidifier to prevent moisture-related issues with the steel plates.
✓ Pros
- Extraordinary space savings
- Smooth, reliable weight adjustment
- Wide weight range (2kg – 24kg)
- Comfortable ergonomic grip
- Durable construction quality
- Pays for itself vs. gym membership
✗ Cons
- 24kg max may limit advanced lifters
- Bulkier than traditional dumbbells at max weight
- Must return to cradle between weight changes
- Not suitable for dropping (crossfit-style)
Frequently Asked Questions
They're ideal for beginners. The 2kg starting weight is light enough for rehabilitation exercises, and the incremental progression (1kg steps up to 10kg) allows for gradual, sustainable strength development.
Yes — they're suitable for virtually any dumbbell exercise: curls, presses, rows, lunges, lateral raises, goblet squats, and more. The ergonomic handle works well across all standard movements.
The dial mechanism produces a soft clicking sound, and the plates settle with a light clatter when returned to the cradle. It's significantly quieter than loading and unloading traditional weight plates — suitable for use in a flat without disturbing neighbours.
Yes. Bowflex offers a 2-year warranty on the SelectTech 552 when purchased through authorised UK retailers. This covers manufacturing defects in the weight plates and selection mechanism.
For most people, 24kg per dumbbell is more than sufficient for a comprehensive strength programme. If you're an advanced lifter who regularly uses heavier weights, consider the SelectTech 1090, which goes up to 41kg per dumbbell.
What Users Are Saying
Cancelled my gym membership three months ago and haven't looked back. These dumbbells, combined with a bench, give me everything I need. The weight change is so quick that I can superset exercises without losing momentum. Best fitness investment I've ever made.
As a mum of two, getting to the gym was becoming impossible. These dumbbells fit perfectly in our spare room, and I can squeeze in a 20-minute session while the kids nap. The 2kg minimum is great for pilates-style work too.
Solid piece of kit. The mechanism is clever and feels well-built. My only complaint is that 24kg isn't quite enough for my heavy sets on chest press — I'll likely upgrade to the 1090 model eventually. But for 90% of exercises, these are perfect.
Key Features at a Glance
Free delivery • 2-year manufacturer warranty