2.0 HP motor · 11.2 mph (18 km/h) top speed · 12 powered incline levels · 130 x 45 cm deck · 110 kg max user · One Series cushioning · soft-drop folding · 61 kg
The Reebok GT40z is the entry point to the Reebok treadmill range, and it is a proper entry point. Not a walking pad with a brand sticker, not a repackaged import with a Reebok logo, but a real treadmill with a real motor, 12 levels of powered incline, Zwift and Kinomap connectivity, and a warranty most machines twice the price cannot match.
At around £599 it sits comfortably below the Jet 200 (£799) and well below the Jet 300 (£949), and the spec sheet reflects that: a smaller deck, a lighter motor, fewer incline levels and a lower weight capacity. None of that is hidden or spun. You pay less and you get less. The real question is whether what you get is enough for what you actually need, and for a lot of UK buyers the answer is a clear yes.
If your main use is brisk walking, incline walking, the 12-3-30 workout, light jogging, Couch to 5K or easing back into fitness, the GT40z does the job and earns a RunRank of 4.1 out of 5. If you run seriously three or more times a week at pace, it is not the one, and the money is better spent on the Jet 200 or Jet 300 for the deck and motor that proper running demands.
Who the GT40z is for
A good fit if you
- Walk, incline walk, do the 12-3-30 or jog lightly
- Are starting Couch to 5K or returning to fitness
- Are roughly under 5 ft 8 and under 110 kg
- Want a light, compact treadmill that folds and rolls away
- Want Zwift or Kinomap and a strong warranty on a budget
Look elsewhere if you
- Run regularly at pace, three or more times a week
- Are taller than about 5 ft 10 or have a long stride
- Are above the 110 kg weight limit
- Want the biggest deck and best cushioning in the range
If the first column is you, the GT40z is the right first treadmill. If the second is, step up to the Jet 200 for running, or look at the compact i-Run 5.0 if you want a powered incline for a little less.
Reebok GT40z specifications
| Price | ~£599 |
|---|---|
| Top speed | 11.2 mph (18 km/h), from 0.6 mph |
| Motor | 2.0 HP |
| Incline | 12 levels, powered |
| Running deck | 130 x 45 cm (51 x 18 in) |
| Max user weight | 110 kg (17 st 4 lb) |
| Machine weight | 61 kg |
| Assembled size | 168 x 77 x 134 cm |
| Folded size | 103 x 77 x 146 cm |
| Display | 5 in blue backlit LCD |
| Programmes | 43 (manual, 36 preset, 3 user-defined, 3 target) + body fat |
| Cushioning | One Series |
| Connectivity | Bluetooth, Zwift, Kinomap (60-day trial) |
| Entertainment | Built-in speakers, aux/MP3 port, tablet holder, dual bottle holders |
| Cooling fan | Yes |
| Folding | Soft-drop hydraulic + transport wheels |
| Warranty | 10-year frame, 10-year motor, 2-year parts & labour |
| RunRank | 4.1 / 5 |
Key features
Motor and speed
The 2.0 HP motor delivers a top speed of 11.2 mph, the same maximum as the Jet 200 one tier up. That covers brisk walking, jogging, interval training and moderate-pace running. Where it shows its limits against higher-spec machines is sustained high-speed running under load: at top speed with incline engaged, a 2.0 HP motor works harder than a 2.25 or 2.5 HP unit, which means slightly more noise, heat and belt wear over time. For walking and jogging, its natural habitat, none of that is an issue, and it cruises a 4 to 7 mph session comfortably. Quick speed keys on the console and handlebars let you change pace mid-stride without leaning forward.
Incline
Twelve levels of powered incline at this price is a genuine selling point. Plenty of treadmills under £600 have no incline at all, and many more offer only a manual two or three-position lever you have to stop and adjust by hand. The GT40z does it electronically, mid-stride, with quick-adjust buttons. That range makes it a natural fit for the 12-3-30 workout, where you lock in a 12 per cent gradient at walking pace. It has three fewer levels than the Jet 200 and Jet 300, but in practice that only affects steep-gradient training, which suits a bigger machine anyway.
Running deck
At 130 x 45 cm this is the smallest deck in the current Reebok range, and it is the single biggest trade-off for the lower price. The Jet 200 gives you 140 x 46 cm and the Jet 300 a far roomier 150 x 51 cm. For walking and jogging, 130 x 45 cm is fine for most people up to around 5 ft 8, with enough length for a natural stride and enough width to feel stable. Width is the tighter constraint: at 45 cm you need to stay fairly centred, which is comfortable at walking speed but can feel narrow at running pace. If you are buying for walking and the occasional jog it is perfectly adequate; if you run regularly, the deck alone is reason to step up to the Jet 200.
One Series cushioning
Reebok’s One Series cushioning sits under the deck and uses rubber blocks of varying density in zones: softer at the front to absorb the landing, firmer at the rear for push-off, with a transition in the middle. It feels more forgiving than a bare deck but firmer and more predictable than the Air Motion system in the Jet series, which uses air-filled pods to redistribute impact more dynamically. One Series is simpler, but it does the job: your knees and ankles feel noticeably less battered after 30 minutes than on a cheaper machine with no cushioning at all, and it dampens footstrike noise through the floor, which helps in a flat or terraced house.
Console and programmes
A 5-inch blue backlit LCD shows speed, time, distance, calories, incline, pulse and a body-fat reading, plus a virtual running-track display borrowed from commercial gym machines. Programme variety is where the GT40z actually outguns the pricier Jets: 43 programmes against 24 on the Jet 200, made up of manual mode, 36 presets, 3 user-defined and 3 target modes for distance, time or calories. The presets span fat burning, hill intervals, endurance, conditioning and speed work, which gives you real structure if you would rather not plan each session. There is no touchscreen or streaming; those come from your own phone or tablet over Bluetooth, which usually has a better screen than any built-in display anyway.
Connectivity
Bluetooth with both Zwift and Kinomap is a major plus at this price, where many budget treadmills offer no app support or only an obscure proprietary one. Zwift turns the machine into a virtual running world alongside other users, while Kinomap runs real-world filmed routes and adjusts to the terrain on screen, with a 60-day Kinomap trial included. Both run through your own device on the tablet holder using the included Bluetooth dongle, no extra hardware needed. Both carry their own subscriptions beyond any trial, but every built-in feature, programme, incline level and speed setting works with no monthly fee, ever.
Folding, storage and build
The soft-drop hydraulic mechanism raises the deck upright with a controlled assist so nothing slams, and transport wheels let you roll it to a wall or corner. The assembled footprint of 168 x 77 cm is noticeably smaller than the Jet 200 or Jet 300, a real advantage in tighter UK rooms, and folded it shrinks to 103 x 77 cm but stands 146 cm tall, so check ceiling or alcove clearance before you store it. At 61 kg it is the lightest treadmill Reebok makes, and one person can fold and roll it after each session, though initial positioning is easier with two. The black frame with red accents looks like gym equipment rather than a gadget, feels solid at walking speeds with only minor movement at running pace, and floor-level adjusters keep it steady on the uneven floors common in older UK homes.
Pros and cons
Pros
- 12 powered incline levels, rare under £600
- 43 programmes, more than the pricier Jet series
- Zwift and Kinomap over Bluetooth, unusual at this price
- Lightest, most compact Reebok, with soft-drop folding
- 10-year frame and 10-year motor warranty, no registration
- One Series cushioning eases impact and floor noise
Cons
- Smallest deck in the range (130 x 45 cm), tight for running
- 110 kg max user weight rules out heavier users
- 2.0 HP motor works hard at sustained high speed with incline
- Grip-only heart rate, no wireless receiver
- 10-year frame warranty is a step below the Jets’ lifetime cover
GT40z vs Jet 200 vs Jet 300
| GT40z | Jet 200 | Jet 300 | |
|---|---|---|---|
| Price | ~£599 | ~£799 | ~£949 |
| Motor | 2.0 HP | 2.25 HP | 2.5 HP |
| Max speed | 11.2 mph | 11.2 mph | 12.4 mph |
| Incline | 12 levels | 15 levels | 15 levels |
| Deck | 130 x 45 cm | 140 x 46 cm | 150 x 51 cm |
| Max user | 110 kg | 120 kg | 140 kg |
| Weight | 61 kg | 78 kg | 87 kg |
| Cushioning | One Series | Air Motion | Air Motion |
| Programmes | 43 | 24+ | 24+ |
| Frame warranty | 10 years | Lifetime | Lifetime |
The GT40z wins on price, programme count, compactness and portability. The Jets win on deck size, motor power, weight capacity, cushioning and frame warranty. Choose on how you will actually use the machine rather than the spec sheet that looks most impressive: if you run, the extra deck and motor of the Jet 200 or Jet 300 are worth the money; if you walk and jog, the GT40z gives you the important things for far less.
Warranty and support
The warranty is one of the GT40z’s strongest cards: a 10-year frame, a 10-year motor and two years parts and labour, all automatic with no registration deadline. It is a step below the lifetime frame cover on the Jet 200 and Jet 300, but still exceptional at £599, where most rivals offer one or two years on the frame and a single year on the motor. Unlike NordicTrack, which drops you to basic cover unless you register within 28 days, Reebok’s warranty simply starts from the date of purchase. UK-based phone and online-chat support backs it up, and extra breakdown cover is available through most retailers. One caveat: cover is for domestic home use only, so garages, sheds and outdoor use are excluded.
The verdict
The GT40z is a well-executed budget treadmill that knows exactly what it is. It walks, jogs, inclines and folds, it connects to Zwift and Kinomap, and it comes with a warranty that makes most rivals at this price look embarrassing, all for around £599 from a brand with genuine UK support. It earns its score on honest value: 12 powered incline levels and 43 programmes give you more structured training than some machines costing twice as much. Where it loses marks is the 130 x 45 cm deck, which limits running and taller users, the 110 kg weight cap, and a 10-year frame warranty that sits below the Jets’ lifetime cover. Buy it as a dependable walker and jogger with real incline and app support in a compact, affordable package. For running at pace, the Jet 200 or Jet 300 is where Reebok gets serious.
Frequently asked questions
Is the Reebok GT40z good for running?
For light jogging, yes. For regular running at pace, it is limited. The 2.0 HP motor reaches 11.2 mph, which covers moderate running, but the 130 x 45 cm deck is tight for taller users or anyone with a longer stride. Walkers and joggers under about 5 ft 8 will be comfortable; dedicated runners should look at the Jet 200 or Jet 300 for a bigger deck and more motor headroom.
Does the Reebok GT40z need a subscription?
No. All 43 built-in programmes, every speed and incline level and manual mode work without any subscription. Zwift and Kinomap connect over Bluetooth and carry their own costs, with a 60-day Kinomap trial included, but the treadmill itself needs no monthly fee, ever.
Is the GT40z good for the 12-3-30 workout?
Yes, it is one of the cheapest treadmills that can do the 12-3-30 properly. It has the 12 incline levels for the required 12 per cent gradient, the 3 mph walking speed is well within range, and the motor handles 30 minutes of steady use without issue. See our full 12-3-30 guide for detail.
What is the difference between the GT40s and GT40z?
The GT40z is the upgraded successor to the GT40s. The main improvements are a higher top speed (18 km/h versus 16 km/h), a wider belt (45 cm versus 43 cm) and Bluetooth connectivity with Zwift and Kinomap that the GT40s lacked. Same One Series cushioning, folding mechanism and general design.
How big is the GT40z when folded?
Folded it measures 103 x 77 x 146 cm. The deck folds upright, so you need at least 146 cm of ceiling clearance where you store it. It is more compact than any Jet model when folded, and at 61 kg one person can fold and roll it for daily storage.
Should I buy the GT40z or spend more on the Jet 200?
If you mainly walk, incline walk or jog casually and are under about 5 ft 8 and 110 kg, the GT40z gives you what you need for around £250 less. If you run regularly, are taller or heavier, or want a bigger deck, the Jet 200 is the better investment, adding Air Motion cushioning and a lifetime frame warranty.
What warranty does the Reebok GT40z come with?
A 10-year frame, 10-year motor and 2-year parts and labour, with no registration deadline. That is better than virtually every competitor under £600. Extra breakdown cover is available separately through most retailers, and the warranty covers domestic home use only.
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