How we rank machines
A published, reproducible method is the only honest basis for ranking equipment we do not own. Here is the whole of it.
What we claim, and what we do not
Belt & Bike does not operate a test lab. We do not own these machines, we have not run them, and we will never write “in our testing” about hardware we have not touched. Every score on this site is an editorial assessment of published specifications, applied consistently.
That is a real limitation and we would rather state it on its own page than bury it. What it buys you in return is a method you can check: every threshold is written down, so you can disagree with one and work out what changes.
The rubric
Every machine is scored 0–10 on five criteria, equally weighted, and the overall score is their mean. The criteria differ between treadmills and bikes because the machines differ.
Treadmills
| Criterion | What earns a high score |
|---|---|
| Motor | Published continuous horsepower with headroom for the stated use. A published 3.0 CHP beats an advertised 4.0 peak. |
| Deck | Belt length and width against the stride the machine is sold for. 20″ × 60″ is the running standard. |
| Incline | Powered range and how quickly it changes. Manual incline scores as near-zero because almost nobody adjusts it twice. |
| Build | Frame mass, capacity rating credibility, warranty depth, and whether the manufacturer sells replacement parts. |
| Value | Everything above against the live price, relative to what else is available at that price today. |
Exercise bikes
| Criterion | What earns a high score |
|---|---|
| Ride | Flywheel mass and position, drive system, and how smooth the stroke should be at low cadence. |
| Fit | Four-way adjustment range on seat and bars, seat rail travel, and whether the bike fits more than one body. |
| Resistance | Type, number of discrete levels, repeatability, and whether a third-party app can read the bike. |
| Build | Frame mass, capacity credibility, and whether spare parts exist. |
| Value | All of the above against the live price. |
The thresholds we apply
These are the numbers behind the scores. Each links to the guide that explains it, so you can see the reasoning rather than taking the figure on trust.
- Motor: 1.5–2.0 CHP for walking, 3.0 CHP for running, 3.5 CHP over 230 lb or daily.
- Deck: 45–50″ for walking; 55″ for running under five foot eight; 60″ above that.
- Capacity margin: bodyweight +50 lb walking, +75 jogging, +100 running; +30 to +75 on bikes by riding style.
- Flywheel: 30–40 lb is the useful band on a spin bike; above ~45 lb adds nothing.
- Incline: 15% is the practical ceiling; manual incline counts as none.
How prices work
- Every price comes from the Amazon Creators API, refreshed daily, and carries the date it was verified. Currently 70 machines carry a live price, as of October 5, 2026.
- Prices expire on their own. If a number is more than 48 hours old it disappears and the page falls back to “check price”. The failure mode is silence, not a stale claim.
- No price is ever typed into the content. There is no price field in our content model, so a figure cannot be authored in and then forgotten.
- Price affects the Value criterion only. It never changes a motor or deck score.
How we handle missing specifications
Where a manufacturer does not publish a figure, our tables print “Not published by manufacturer”. We do not estimate it, and we do not borrow it from a similar model. A missing spec also costs the machine points, because non-disclosure is itself information: brands confident in a motor advertise it.
Why scores never appear in page markup
The scores on this site are visible editorial content and are deliberately never emitted as Review or aggregateRating structured data. Marking up an editorial judgment as a product review rating would contradict this page, and it would claim a kind of evaluation we have just told you we do not perform.
How products get onto the site
- Identify real, currently-sold models in a category from search demand and manufacturer catalogs.
- Resolve each to a live listing, checking the returned title carries the right brand and model tokens.
- Record published specifications with their source, and mark the gaps as gaps.
- Score against the rubric; write the verdict, pros and cons from the specification and the price band.
- Re-rank whenever prices move enough to change the Value score.
Currently 70 machines are in the registry. Every pick on every page comes from it — we never invent a product to fill a slot in a list.
Corrections
If a specification here is wrong, we want to know and we will fix it and date the change. Use the contact form.