Motor: 3.0 CHP / 5.0 HP peak AC | Speed: 0.6–12.4 mph | Incline: 18 levels | Deck: 154 × 55 cm | Max User Weight: 150 kg | Folding: No | Price: ~£1,499
The Reebok Z-Tech AC is the machine Reebok builds when it stops worrying about whether you can fold it behind the sofa. No soft-drop mechanism, no hydraulic hinges, no storage compromises. A fixed, non-folding frame with a commercial-grade AC motor bolted to a 154 × 55 cm deck that sits in your home like it owns the place. Because once you get this thing set up, it is not going anywhere. And that’s exactly the point.
At around £1,499, the Z-Tech AC costs roughly £550 more than the Jet 300 and nearly three times what you would pay for the GT40z. For that money you get the only AC motor in the entire Reebok home range, a 150 kg max user weight that opens the door to riders who outgrow the 110–140 kg limits on every other model, and a self-lubricating orthopaedic belt that means you can spend less time maintaining the machine and more time running on it.
This is not the right treadmill for casual UK buyers. That is not a criticism, it is a testament to how pro this machine is. Most people need folding. Most spare bedrooms cannot permanently house a machine that measures 171 × 85 cm and weighs 117 kg. Most budgets do not stretch to £1,500 for a treadmill.
But if you have the space, the budget, and the intention to run seriously and frequently, the Z-Tech AC is the best home treadmill Reebok makes. Nothing else in their range comes close on build quality, motor durability, or sheer running feel. It’s for the pros who bring their performance home with them. If that’s you, read on.
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Reebok Z-Tech AC Specs
| Motor | 3.0 CHP / 5.0 HP peak AC (commercial-grade) |
| Speed Range | 0.6–12.4 mph (1–20 km/h) |
| Incline | 18 levels power incline |
| Running Deck | 154 × 55 cm (61 × 22 inches) |
| Max User Weight | 150 kg (23 st 9 lb) |
| Machine Weight | ~117 kg |
| Assembled Dimensions | ~171.5 × 85 × 156.5 cm |
| Folding | No — fixed deck (non-folding) |
| Display | LED console with dial interface |
| Programs | 43 (manual, preset, user-defined, target modes) + body fat mode |
| Cushioning | Energy Transfer Cushioning |
| Belt | 2.5 mm self-lubricating orthopaedic belt |
| Connectivity | Bluetooth, Zwift compatible, Kinomap compatible, Reebok Console App |
| Entertainment | Built-in Bluetooth speakers, USB-C charging, rotatable tablet holder (up to 15.6″) |
| Other Features | Dual water bottle holders, hand pulse sensors, heavy-duty transport wheels, floor level adjustment |
| Warranty | 2-year parts and labour |
Key Features and Benefits
AC Motor
This is the headline feature and the reason the Z-Tech AC exists as a separate model. Every other treadmill in the current Reebok range — GT40z, Jet 200, Jet 300 — runs a DC (direct current) motor. The Z-Tech AC uses an AC (alternating current) motor, which is the same type of motor found in commercial gym treadmills.
The practical difference is significant. AC motors generate less heat under sustained load, deliver more consistent power output across the full speed range, and last longer under heavy, frequent use. A DC motor doing 45-minute sessions five days a week is working hard. An AC motor doing the same schedule is barely warming up. Commercial gyms use AC motors because they need machines that can run 12 hours a day without overheating or degrading. You are getting that same motor technology in a home machine.
The Z-Tech AC’s motor is rated at 3.0 CHP (continuous horsepower) with a 5.0 HP peak — the most powerful motor in the Reebok range by a considerable margin. The Jet 300’s 2.5 HP DC motor is strong for its class, but it is a fundamentally different category of hardware. At 12.4 mph with 18 levels of incline engaged, the Z-Tech’s motor does not strain, does not surge, and does not hesitate. It holds speed with the mechanical indifference of something designed to work much harder than you will ever ask it to.
The noise profile reflects the motor type too. AC motors tend to run quieter than DC motors at equivalent loads, with a smoother, lower-pitched hum rather than the higher whine that DC motors produce at full speed. You will still hear it — it is a treadmill, not a library — but it will not wake the neighbours at 6 am the way some cheaper machines do.
Speed and Incline
Top speed of 12.4 mph matches the Jet 300 and comfortably covers everything from walking to flat-out sprinting. That is a 4:50/mile pace, faster than most home runners will ever need. The 0.6 mph minimum speed is low enough for rehab walking and gentle warm-ups.
The highest of all the Reebok treadmills with incline features, the Z-Tech offers 18 levels of power incline match the Jet series, giving you three more levels than the GT40z and enough gradient range for everything from flat running to steep hill simulation. The 12-3-30 workout works perfectly on the Z-Tech.
Speed and incline adjustments happen through rotary wheels on either handle — a different control approach to the push-button systems on the Jet and GT40z models.
The wheels allow continuous, fluid adjustments rather than stepped button presses, which makes interval transitions feel more natural. Roll the wheel to accelerate into a sprint, roll it back to recover. No jabbing at buttons mid-stride. It is a small design choice that makes a noticeable difference to the user experience during high-intensity sessions.
Running Deck
At 154 × 55 cm, the Z-Tech AC matches the Jet 300 for length but adds 4 cm of width. That extra width matters more than it sounds. At running speed, 51 cm (Jet 300) is fine, 55 cm is comfortable. The difference is the gap between staying centred through conscious effort and staying centred without thinking about it. Runners over 6 ft and anyone with a wider natural stance will appreciate the extra room.
Length-wise, 154 cm accommodates runners up to around 6 ft 2 with a full running stride. Taller runners may still feel the limits at top speed, but for the vast majority of UK users, the deck is long enough for comfortable running at any pace the motor offers.
The fixed, non-folding frame is structurally stronger than any folding alternative. No hinge points, no locking mechanisms, no pivot hardware adding flex to the frame. The deck sits on a solid platform that does not move, does not wobble, and does not develop play over time.
This is the same approach commercial gym treadmills use, and it creates a noticeably more planted, stable running surface. You feel the difference immediately if you have run on a folding treadmill before. The Z-Tech AC feels like it is bolted to the floor.
Energy Transfer Cushioning
The cushioning system here is different from both the One Series on the GT40z and the Air Motion Technology on the Jets. Energy Transfer Cushioning is inspired by the Reebok Z-Tech shoe and takes a more directional approach to impact management.
Rather than simply absorbing impact (One Series) or redistributing it through air chambers (Air Motion), Energy Transfer Cushioning is designed to absorb the downward force of each foot strike and channel that energy forward along the deck, effectively helping propel your next stride. The front zone softens landing impact. The transition zone redirects force. The rear zone provides a firmer push-off surface.
In practice, the running feel sits between Air Motion’s softer, more padded character and the firm responsiveness of Floatride+ cushioning. There is meaningful shock absorption. Your knees and ankles feel protected during longer sessions, but the deck does not feel spongy or dead. There is a sense of energy return that makes the running surface feel alive rather than passive. It is the most sophisticated cushioning system in the current Reebok home treadmill range.
The 2.5 mm self-lubricating orthopaedic belt works alongside the cushioning system to further reduce joint stress and eliminate one of the most common treadmill maintenance tasks. Standard belts need periodic lubrication to prevent friction build-up, belt slip, and premature wear. The Z-Tech AC’s belt handles this automatically. Less maintenance, longer belt life, more consistent running feel over time.
Console and Programs
The LED console uses a dial interface rather than the button-based controls found on the Jet and GT40z models. Real-time metrics include speed, time, distance, calories, pulse, incline, and heart rate. All the essentials, displayed clearly without clutter.
Some 43 programs give you more structured workout variety than any other Reebok treadmill. Preset programs cover fat burning, hill intervals, endurance, cardiovascular conditioning, and speed work. User-defined programs let you build custom speed and incline profiles. Target modes let you set goals for distance, time, or calories. A body fat test function rounds it out.
The rotatable tablet holder is a genuine upgrade over the fixed holders on cheaper models. It accommodates devices up to 15.6 inches (large enough for an iPad Pro or even a small laptop screen) and the rotation lets you angle it for optimal viewing whether you are standing upright during walking or leaning slightly forward at running pace. USB-C charging through the console keeps your device powered during longer sessions. No more arriving at the end of a 60-minute Zwift run with a dead phone.
Built-in Bluetooth speakers are decent for background audio. Not audiophile quality, but clear enough for podcasts, playlists, and app audio without needing headphones. If you do prefer headphones, the Bluetooth connection handles that too.
Connectivity
Full Bluetooth connectivity with Zwift, Kinomap, and the Reebok Console App. Same app ecosystem as the rest of the range, which means the same access to virtual running worlds, real-world filmed routes, structured coaching programs, and detailed performance tracking.
Zwift’s 1,000+ structured workouts from elite coaches and global multiplayer running community work seamlessly. Kinomap’s real-world filmed routes with automatic speed and incline adjustment add variety that flat-screen Netflix sessions cannot match. The Reebok Console App ties everything together with performance logging and workout history.
At this price point, you might expect a built-in touchscreen with native app support. The Z-Tech AC does not have one, and that is arguably the right call. Built-in screens on treadmills age poorly. Software stops updating, processors slow down, screens develop dead pixels.
Your own tablet or phone will always be newer, faster, and better supported than anything built into a treadmill console. The Z-Tech gives you the holder, the charging port, and the Bluetooth connection. You supply the screen. It will still be current in five years. A built-in touchscreen would not be.
Build Quality and Design
At 117 kg, the Z-Tech AC is the heaviest machine in the Reebok home range by a significant margin, 30 kg heavier than the Jet 300, 56 kg heavier than the GT40z. That weight comes from the AC motor, the reinforced non-folding frame, and the heavier-gauge steel construction throughout. It is the kind of weight that tells you something is properly built the moment you stand on it.
The 150 kg max user weight is the highest in the range and opens the door for larger users who are genuinely excluded by the 110–140 kg limits on every other Reebok model. At 150 kg capacity, the Z-Tech AC handles heavier runners without the deck flex, motor strain, or frame wobble that lighter machines develop when pushed near their limits.
Heavy-duty transport wheels allow repositioning within a room, but this is not a machine you are moving between rooms regularly. 117 kg on wheels will roll across a flat floor, but getting it over door thresholds, through tight hallways, or around furniture is a two-person job at minimum. Choose your location carefully before assembly. That said, once it is in position, the floor level adjustment feet ensure it sits perfectly flat even on uneven surfaces. No rocking, no wobble, no shimming needed.
The fixed deck design means zero flex at the hinge point that plagues folding treadmills over time. Folding mechanisms are engineering compromises — they add convenience but introduce a structural weak point that can develop play after thousands of fold-unfold cycles. The Z-Tech AC sidesteps that entirely. The frame is one continuous structure from front to rear, and it will feel exactly as solid in year five as it does on day one.
Aesthetically, the Z-Tech AC looks more commercial than domestic. Black and silver finish, clean lines, minimal branding. It does not try to disguise what it is. If a Jet 300 looks like a nice home treadmill, the Z-Tech AC looks like something that escaped from a boutique gym.
Whether that matters to you depends on how much you care about your spare bedroom looking like a gym. If you are spending £1,499 on a treadmill, you probably do not mind.
Who Should Buy the Z-Tech AC
Serious home runners. If you run four or more times a week at pace and want a motor that will not degrade, overheat, or lose consistency under that workload, the AC motor is the reason to buy this machine.
Heavier users. The 150 kg capacity is genuinely higher than any other current Reebok model. If you weigh over 120 kg and want to run — not just walk — you need this kind of structural capability.
Buyers with dedicated gym space. Spare room, garage conversion, garden room, basement gym. If you have permanent floor space for a treadmill and no need to reclaim it between sessions, the non-folding design is an advantage, not a limitation.
Long-session users. Marathon training, 60-minute steady-state runs, multi-hour walking desk setups. AC motors are built for sustained operation in a way that DC motors simply are not.
People who want minimal maintenance. The self-lubricating belt removes the single most forgotten maintenance task in treadmill ownership. Less to go wrong, less to remember.
Who Should Not Buy the Z-Tech AC
Anyone who needs folding. This is the single biggest disqualifier. If your treadmill shares space with anything else — a dining table, a home office, a child’s play area — you need it to fold. Buy the Jet 300 instead.
Anyone in a flat or upstairs room. 117 kg on a second floor is a lot. Moving it upstairs is a professional delivery job. And the impact vibrations from running on a non-suspended deck in an upstairs flat will travel.
Budget-conscious buyers. At £1,499, the Z-Tech AC costs more than the Jet 200 and Jet 300 combined. For most people, the Jet 300 at £949 delivers 90% of the running experience at 63% of the price.
Walkers and light joggers. If your primary use is walking, incline walking, or the occasional jog, the Z-Tech AC is massively over-specced for your needs. The GT40z at £599 does the job.
Z-Tech AC vs Jet 300 vs Jet 200 vs GT40z
| Z-Tech AC | Jet 300 | Jet 200 | GT40z | |
|---|---|---|---|---|
| Price | ~£1,499 | ~£949 | ~£799 | ~£549 |
| Motor | 3.0 CHP / 5.0 HP AC | 2.5 HP DC | 2.25 HP DC | 2.0 HP DC |
| Max Speed | 12.4 mph | 12.4 mph | 11.2 mph | 11.2 mph |
| Incline | 18 levels | 15 levels | 15 levels | 12 levels |
| Deck | 154 × 55 cm | 150 × 51 cm | 140 × 46 cm | 130 × 45 cm |
| Max User Weight | 150 kg | 140 kg | 120 kg | 110 kg |
| Machine Weight | ~117 kg | 87 kg | 78 kg | 61 kg |
| Folding | No | Yes | Yes | Yes |
| Cushioning | Energy Transfer | Air Motion | Air Motion | One Series |
| Belt | Self-lubricating | Standard | Standard | Standard |
| Charging | USB-C | USB | USB | Aux/MP3 |
| Programs | 43 | 24+ | 24+ | 43 |
| Warranty | 2-year P&L | Lifetime frame, 10-yr motor, 2-yr P&L | Lifetime frame, 10-yr motor, 2-yr P&L | 10-yr frame, 10-yr motor, 2-yr P&L |
The comparison table tells a clear story. The Z-Tech AC wins on motor power, motor technology, deck size, weight capacity, cushioning sophistication, and build quality.
The Jet 300 wins on folding capability, warranty length, and value for money. For most UK home buyers, the Jet 300 is the smarter purchase. For dedicated home gym owners who will use the machine heavily and have the space, the Z-Tech AC is the better machine.
A Note on Warranty
The Z-Tech AC comes with a 2-year parts and labour warranty. That is the same parts and labour coverage as every other Reebok model, but there is a notable gap: the Jet 200 and Jet 300 add a lifetime frame warranty and a 10-year motor warranty on top. The GT40z adds 10-year frame and motor coverage. The Z-Tech AC’s warranty, as listed by major UK retailers, covers 2 years of parts and labour without the extended frame and motor guarantees.
At £1,499, that is a surprise. You would expect the most expensive machine in the range to carry the most comprehensive warranty, not the least. The AC motor is inherently more durable than the DC motors in cheaper models — that is part of what you are paying for — but having it in writing would be reassuring. Worth asking the retailer about specific warranty terms at the point of purchase, as coverage may vary by seller.
Additional breakdown cover is available from most retailers, typically £120–£150 for extended protection. Given the warranty structure, it is worth considering for the Z-Tech AC more than it would be for the Jets.
Where to Buy the Reebok Z-Tech AC in the UK
Generally, Amazon offers the most competitive pricing and the option to pay in interest-free installments.
- Amazon UK — Around £1,499 with free delivery. Amazon’s 30-day returns policy and option for scheduled two-person delivery. Third-party accidental damage cover available from around £60–£80.
- Currys — £1,499 with interest-free credit options available (6 months buy now pay later, or monthly instalments). Physical stores for viewing, though stock varies by location.
- Sweatband — Specialist fitness retailer with free two-man delivery to room of choice. DivideBuy finance options. Knowledgeable customer support from fitness equipment specialists.
- Reebok Fitness Equipment — The official UK site. Check availability before ordering.
Professional delivery is essential here. At 117 kg boxed weight, this is not something you are carrying upstairs yourself. Most retailers offer free two-person delivery for the Z-Tech AC, and you should absolutely take it. Assembly takes 1–2 hours with two people. The fixed deck simplifies things slightly compared to folding models — no folding mechanism to align — but the sheer weight of the components means you need a second pair of hands.
Final Verdict — 4.8 RunRank
The best treadmill Reebok makes, but not the best treadmill for most people. That is the tension at the heart of the Z-Tech AC, and it is why it earns 4.8. On pure running merit, motor quality, deck stability, cushioning sophistication, build durability it scores 5/5. On practical home treadmill merit, space requirements, weight, foldability, price, warranty, it loses a couple of points.
If you have a dedicated gym space in your home, you run regularly and seriously, and you want a machine that will feel as solid and reliable in five years as it does today, the Z-Tech AC is the one to buy. The AC motor alone justifies the step up from the Jet range for heavy users. The fixed deck, the self-lubricating belt, the 150 kg capacity, the Energy Transfer cushioning — everything is built for sustained, demanding use.
If folding matters, and in most UK homes it does, the Jet 300 remains our top recommendation. It is £550 cheaper, nearly as good on every metric except motor type and weight capacity, and it folds. For the majority of buyers, that combination wins.
But for the buyer who does not need to fold, the Z-Tech AC is the closest thing to a commercial gym treadmill you can put in your house with a Reebok badge on it. And it runs like one.
Reebok Z-Tech AC FAQ
What is the difference between AC and DC motors on a treadmill?
AC (alternating current) motors are the same type used in commercial gym treadmills. They generate less heat under sustained load, deliver more consistent power across the full speed range, and last longer under heavy, frequent use. DC (direct current) motors are lighter, cheaper, and perfectly adequate for most home users, but they work harder during long sessions at high speeds and degrade faster under daily use. The Z-Tech AC is the only Reebok home treadmill with an AC motor — every other model in the range uses DC.
Does the Reebok Z-Tech AC fold?
No. The Z-Tech AC has a fixed, non-folding frame. This is a deliberate design choice — the fixed deck creates a more rigid, stable running platform with no hinge points or locking mechanisms that can develop play over time. It performs like a commercial gym treadmill, but it requires permanent floor space of approximately 171 × 85 cm. If you need folding, the Jet 300 is the best alternative in the Reebok range.
Is the Z-Tech AC good for the 12-3-30 workout?
Yes — it handles the 12-3-30 workout effortlessly with 18 levels of power incline. However, at £1,499, buying the Z-Tech AC primarily for walking workouts is significant overkill. The GT40z at £549 does the 12-3-30 just as well. The Z-Tech AC’s value is in sustained running, not incline walking.
How heavy is the Reebok Z-Tech AC?
Approximately 117 kg — the heaviest machine in the Reebok home range by a considerable margin (the Jet 300 is 87 kg, the GT40z is 61 kg). Heavy-duty transport wheels allow repositioning within a room, but moving between rooms is a two-person job. Professional delivery is strongly recommended. Choose your location before assembly.
Does the Z-Tech AC need a subscription?
No. All 43 built-in programs, every speed and incline setting, and manual mode work without any subscription. Zwift and Kinomap connectivity is included via Bluetooth, but those apps carry their own subscription costs. The Reebok Console App is free. The treadmill itself requires no ongoing fee.
What is Energy Transfer Cushioning?
Energy Transfer Cushioning is Reebok’s most advanced cushioning system, inspired by the Reebok Z-Tech shoe. Rather than simply absorbing impact (like One Series on the GT40z) or redistributing it through air chambers (like Air Motion on the Jets), Energy Transfer Cushioning absorbs the downward force of each foot strike and channels that energy forward along the deck to assist your next stride. The result is a running surface that feels responsive and energised rather than passive or spongy.
What is the self-lubricating belt?
The Z-Tech AC uses a 2.5 mm orthopaedic belt that lubricates itself automatically, eliminating the need for manual belt lubrication — one of the most commonly neglected maintenance tasks in treadmill ownership. Standard treadmill belts need periodic silicone lubricant applied underneath to prevent friction build-up, belt slip, and premature wear. The Z-Tech AC handles this automatically. Less maintenance, longer belt life, more consistent running feel.
Why does the Z-Tech AC have a shorter warranty than cheaper Reebok models?
Good question, and one worth raising with the retailer. As listed by major UK retailers, the Z-Tech AC comes with 2-year parts and labour coverage, while the Jet 200 and Jet 300 add lifetime frame and 10-year motor warranties. The AC motor is inherently more durable than a DC motor, which may partly explain why Reebok has not extended the same long-term guarantee — but at £1,499, the warranty structure is the one notable gap in an otherwise premium spec sheet. Consider third-party breakdown cover if you plan heavy use.
Should I buy the Z-Tech AC or the Jet 300?
If you have dedicated gym space and do not need to fold your treadmill, the Z-Tech AC is the better machine — superior motor, more stable frame, bigger deck, higher weight capacity, better cushioning, self-lubricating belt. If you need folding — and in most UK homes, you do — the Jet 300 at £949 delivers 90% of the running experience at 63% of the price, with a better warranty and the ability to reclaim your floor space between sessions.
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