We have not run on this machine and we do not pretend to have. What follows is every figure Reebok or its retailer publishes about the Reebok Jet 100z, each one carrying where it came from and when we checked it, and an equally plain list of the 3 figures nobody publishes at all.
12 of 15 specifications established from a named source.
What the figures say
Every line below is worked out from the numbers in the table, compared against the other machines we hold records for. None of it is an impression.
In its favour
- Incline reaches 15%, enough to make a walk hard work.
Against it
- The 110 kg ceiling is below the 182 kg of the highest-rated machine we hold.
Specifications
| Figure | Value | Evidence |
|---|---|---|
| MotorHow much continuous power the belt has behind it. | 2 HP peak | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| Top speedThe fastest the belt will go. | 18 km/h | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| Maximum inclineHow steep the deck will tilt. | 15% | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| Belt lengthThe single figure that decides whether you can run on it. | 130 cm | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| Belt widthHow much room you have side to side. | 43 cm | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| Folded sizeWhat it measures once it is out of the way. | 98 cm | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| Maximum user weightThe ceiling the frame, deck and motor are rated to together. | 110 kg | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| Machine weightWhat you have to move when you want it somewhere else. | 71 kg | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| CushioningWhat sits between the deck and your knees. | Air Motion | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| ConnectivityWhether it talks to anything else. | Console app control, Zwift, Kinomap | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| AppsWhich apps it is stated to work with. | Kinomap, Zwift | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
| FoldingWhether it folds, and how. | Folds upright | Manufacturer stated, Retailer listing, checked 19 Sept 2026Source |
What nobody publishes
Most sites leave these rows out, which makes a machine look better documented than it is. They are here because knowing what is unknown changes how much weight you put on the rest.
- WarrantyHow long the cover runs, as the maker states it.Not established
- Motor warrantySeparate motor cover, where a brand publishes one.Not established
- NoiseA measured decibel figure.Not established
Who it suits
Our reading of the figures above, not a verdict on the machine.
- Running
- Up to a point
- Walking
- Yes
- Flat or shared building
- Up to a point
- Putting it away
- Yes
Running is limited rather than yes. The 18 km/h top speed and 15% incline would allow it, but the belt is 130 x 43 cm, which is short and narrow for a running stride, the 110 kg ceiling is the lowest of any powered treadmill here, and the 2 HP figure is PEAK rather than continuous, so the sustained power behind it is not established. Walking is comfortably within all of that, and a published 1 km/h minimum speed helps. Storage is yes on the smallest folded footprint of any full-size treadmill recorded, 98 x 73 cm, though folding raises it to 143.5 cm so it does not go under anything. Apartment is limited on 71 kg of mass rather than noise, which is unpublished here as everywhere.
How this page was put together
Every figure above was read off a named source, recorded with the date we read it, and is shown with that source attached. Where two sources disagreed we kept both. Where a figure was missing we left it missing, because the alternative is to borrow a number from a similar model and hope. Nothing here is a measurement of ours. How we review.
Where to go from here
Also rated for 110 kg or more
- JTX RunRise110 kgManufacturer stated, Manufacturer spec, checked 18 Sept 2026
- Echelon Stride Sport114 kgManufacturer stated, Manufacturer spec, checked 18 Sept 2026
- JLL Pegasus Connected Folding Treadmill120 kgManufacturer stated, Manufacturer spec, checked 18 Sept 2026
Also a deck of 130 cm or longer
- JTX RunRise130 cmManufacturer stated, Manufacturer spec, checked 18 Sept 2026
- Horizon 5.0AT140 cmManufacturer stated, Retailer listing, checked 18 Sept 2026
- ProForm Carbon TL140 cmManufacturer stated, Retailer listing, checked 18 Sept 2026
Also folds to 98 cm deep or less
- Decorcn Foldable Treadmill94.5 cmManufacturer stated, Retailer listing, checked 23 Sept 2026
- JTX SlimLine26.5 cmManufacturer stated, Manufacturer spec, checked 18 Sept 2026
- JTX RunRise25 cmManufacturer stated, Manufacturer spec, checked 18 Sept 2026
Not sure this is the right one? See the full treadmills buying guide for what actually decides the choice.
Where to buy
The link below pays us a commission if you buy through it. It costs you nothing extra and does not change what we write. Read the disclosure.