JTX Fitness Review
The JTX Sprint 8 Pro is the Sprint 7 scaled up: the same 12.4 mph top speed and 12 percent incline, but with a stronger 3 CHP motor, a much larger 22.5-inch screen, a bigger 153 by 55 cm deck and a light-commercial build. It is the JTX for people who want the big screen and a tougher machine, on offer at £1,299 in the Summer Sale. Here is our full assessment.
Best big-screen JTX for serious training
Save £200 in the Summer Sale
£1,499 £1,299
Summer Sale price, no code needed. Free UK delivery, 3-year in-home warranty, direct from JTX Fitness.
Check price at JTX Fitness →- Motor3 CHP
- Top speed12.4 mph (20 km/h)
- Incline12% power
- Deck153 x 55 cm
- Screen22.5 inch
- Warranty3yr in-home
What is the JTX Sprint 8 Pro?
The JTX Sprint 8 Pro sits between the Sprint 7 and the fixed-frame Sprint 9 Pro. It keeps the hydraulic fold-up format of the Sprint 7 but scales up the parts that matter for frequent use: a stronger 3 CHP motor, a much larger 22.5-inch screen, a bigger 153 by 55 cm deck, and a light-commercial usage rating.
What it is not is a faster or steeper machine than the Sprint 7. Both share the same 12.4 mph (20 km/h) top speed and 12 percent power incline. The Sprint 8 Pro’s case rests on its screen, its deck size and its heavier-duty build, not on outright performance.
Motor and running feel
The 3 CHP motor is a step up from the Sprint 7’s 2.5 CHP, giving more headroom for sustained running and a more confident feel under repeated hard sessions, even though the top speed is the same 12.4 mph. It is a brushed motor, well proven and capable, and paired with the light-commercial rating it is built to take more frequent use than the home-class models.
At 117 kg this is a heavy, planted machine. It feels rock-solid underfoot at the top of its speed range, with none of the give you can sense on lighter frames, which is part of what the light-commercial billing buys you.
Deck, cushioning and incline
The 153 by 55 cm deck is the most generous on any folding JTX, longer and wider than the Sprint 7’s 145 by 51 cm, with real room for a long, fast stride. It sits on the 6-point Cushionstep system for a forgiving surface over distance, and the 130 kg user limit matches the Sprint 7.
Incline is 12 percent power, the same as the Sprint 7, and auto-adjusts on Kinomap routes. If you specifically want more speed, the Sprint 9 Pro goes to 13.7 mph, though oddly with slightly less incline at 11 percent.
Screen, apps and connectivity
The headline feature is the 22.5-inch screen, far larger than the Sprint 7’s 13-inch, which makes following Kinomap routes and Zwift sessions a more immersive experience. The Sprint 8 Pro connects over Bluetooth to both Kinomap and Zwift, with built-in speakers and Polar-compatible heart-rate support, and on Kinomap the 12 percent incline auto-adjusts to the route.
As across the range, both apps have free tiers, so there is no mandatory subscription. You buy the machine and use the connected features without a recurring platform fee, which is the JTX pitch against iFIT-locked rivals.
Folding, footprint and assembly
Like the Sprint 7, the Sprint 8 Pro uses a hydraulic soft-drop fold that raises the deck against the wall to cut the footprint, lowering gently rather than dropping. It does not fold flat. In use it occupies about 193 by 92 cm, larger than the Sprint 7 in every dimension, so it wants a dedicated space.
At 117 kg, with some assembly required and ground-floor delivery only, this is very much a stay-in-one-place machine. Plan the room before it arrives, and expect a two-person job to position it.
How it compares
Against the Sprint 7, the Sprint 8 Pro adds the big 22.5-inch screen, the bigger deck, the stronger 3 CHP motor and the light-commercial build, but not more speed or incline, so it is worth the premium only if those things matter to you. Against the Sprint 9 Pro, the 8 Pro keeps the hydraulic fold and costs less, but gives up the 9 Pro’s brushless motor, faster 13.7 mph top speed, higher 150 kg user limit and fixed-frame stability. Our best home treadmill guide sets the wider field out.
Where JTX stands in 2026
Worth noting for 2026 buyers: JTX refreshed its branding this year around being an independent UK maker that sells direct, with no subscription locking your training behind a monthly fee. The Sprint 8 Pro leans into that with a big screen running Kinomap and Zwift on their free tiers, and a light-commercial build meant to last, the kind of own-it-outright machine the refreshed brand is built around.
Our overall RunRank is a weighted view across the four pillars, not a flat average. The 22.5-inch screen, generous deck and heavy, light-commercial frame lift build and features above the Sprint 7, and the £200 Summer Sale saving helps the value pillar; you are still paying a premium for the same 12.4 mph and 12 percent incline, and the brushed motor sits below the 9 Pro’s brushless unit. How RunRank works.
- Large 22.5-inch screen for Kinomap and Zwift
- Biggest folding deck in the range at 153 x 55 cm
- Stronger 3 CHP motor and light-commercial build
- 6-point Cushionstep deck for joint comfort
- £1,299 in the Summer Sale, down from £1,499
- Both Kinomap and Zwift, no mandatory subscription
- 3-year in-home warranty
- Same 12.4 mph and 12 percent incline as the cheaper Sprint 7
- Brushed motor, where the Sprint 9 Pro is brushless
- Heavy at 117 kg, some assembly, ground-floor delivery only
- Does not fold flat
Full specifications
| Type | Hydraulic fold-up motorised treadmill |
| Motor | 3 CHP |
| Top speed | 12.4 mph (20 km/h) |
| Incline | 12% power, with Kinomap auto-adjust |
| Running deck | 153 x 55 cm |
| Screen | 22.5 inch |
| Cushioning | 6-point Cushionstep |
| App connectivity | Kinomap and Zwift (Bluetooth) |
| Heart rate | Hand sensors, Polar-compatible chest strap and wearables |
| Speakers | Built-in |
| Folding | Hydraulic soft-drop (folded approx. 132 x 90 x 156 cm) |
| In-use size | 193 x 92 x 154 cm |
| Max user weight | 130 kg |
| Machine weight | 117 kg |
| Usage class | Light commercial |
| Assembly | Some assembly required, ground-floor delivery only |
| Warranty | 3-year in-home repair (home use) |
| Price | £1,499 £1,299 in the Summer Sale |
Frequently asked questions
How much does the JTX Sprint 8 Pro cost?
The RRP is £1,499, but in the current JTX Summer Sale it is £1,299 with no code needed, a saving of £200. JTX runs sales periodically rather than permanently, so treat £1,299 as a current offer rather than a fixed price and confirm the live price at the checkout.
What is the difference between the JTX Sprint 7 and Sprint 8 Pro?
They share the same 12.4 mph top speed and 12 percent incline. The Sprint 8 Pro adds a much larger 22.5-inch screen, a bigger 153 by 55 cm deck, a stronger 3 CHP motor and a light-commercial build. The step up is about screen, deck and durability, not speed or incline.
Is the Sprint 8 Pro faster than the Sprint 7?
No. Both top out at 12.4 mph with 12 percent incline. For more speed you need the Sprint 9 Pro at 13.7 mph.
Does the Sprint 8 Pro work with Zwift?
Yes. It connects to both Kinomap and Zwift over Bluetooth, both with free tiers, so there is no mandatory subscription. On Kinomap the incline auto-adjusts to the route.
What does light commercial mean?
JTX rates the Sprint 8 Pro for light-commercial use, meaning a heavier-duty build than the home-class models, suited to more frequent use. The in-home repair warranty is 3 years for home use.
Does it fold flat?
No. It uses a hydraulic soft-drop fold that raises the deck against the wall to cut the footprint, but it does not fold flat for under-bed storage. For flat storage, the RunRise XL is the alternative.
Is it worth it over the Sprint 7?
Only if you want the big 22.5-inch screen, the larger deck or the tougher light-commercial build. On speed and incline it is identical to the Sprint 7, which is several hundred pounds cheaper.
The verdict
The Sprint 8 Pro is the JTX to buy when you want a big screen and a heavy, durable machine, and are happy that its speed and incline match the cheaper Sprint 7 rather than beat it. The 22.5-inch display, the generous 153 by 55 cm deck, the 3 CHP motor and the light-commercial build are what you are paying the premium for, along with the free-tier Kinomap and Zwift support that keeps running costs down. If those things matter, at £1,299 in the Summer Sale it delivers; if they do not, the Sprint 7 gives you the same run for less, and the Sprint 9 Pro is the one to choose if you want genuine extra speed.
We research and compare products independently using our RunRank system. If you buy through links on this page we may earn a commission, at no extra cost to you. Prices are checked regularly and change with sales and discount codes, so always confirm the current price on the retailer’s site.
