Reebok ZR8

Written by Jamie Miller, Founder & Editor · Last checked 18 September 2026

We could not verify a single specification for this machine. The Reebok ZR8 is discontinued, the UK Reebok fitness website no longer exists, and the instruction manual its retailer links to turns out to contain nothing. If you are being offered one second-hand, that is the most important thing to know, and the rest of this page is where we looked and what we would do in your position.

Where we looked

Most sites would write "specifications unavailable" and move on, or quietly copy the numbers off a resale listing. Here is the actual trail, so you can judge it.

1. The manufacturerreebokfitness.co.uk refuses connections. The UK Reebok fitness site is gone, so there is no manufacturer specification page to read.
2. The manual, via the retailerArgos is the confirmed UK retailer, catalogue number 335/9019, manufacturer reference REI-11820BK. Its support page links an instruction manual. We downloaded it: it is a single decorative cover page with no text and no specifications. We extracted the two images inside it and looked at them to be sure. The linked manual is not a manual.
3. The manual, elsewhereA genuine 58-page manual exists on a third-party manual host, but only inside a paginated viewer with no downloadable file and no selectable text. The questions and answers on that page are machine-generated and are not a source.
4. The archiveNo Wayback Machine captures exist for the Reebok UK product page or for the Argos listing. Both queries returned nothing.
5. Retailers todaySecond-hand only. No new stock at any UK retailer. Fifteen or more private resale listings.

The figures circulating online, and why they are not on this page

Resale listings for this machine repeat three figures consistently between sellers: a top speed, a maximum incline and a maximum user weight. We have seen them, they agree with each other, and we are still not publishing them as specifications.

A resale listing is written by a private seller, cites nothing, and is often copied from another listing rather than from the machine. Consistency between sellers who copy each other is not corroboration. If we printed those three numbers here they would become, for anyone who found this page, a fact published by a review site — and the only thing standing behind them would be a marketplace title. That is precisely the laundering of hearsay into fact that this site exists not to do. How we review.

If you are buying one second-hand

It may still be a perfectly good machine. Plenty of discontinued treadmills are. But you are buying without a safety net, and three things follow.

• There is no warranty and no manufacturer support. The UK operation is gone. If the control board fails, you are on your own with a parts search.
• Check the rating plate yourself. It is near the power inlet or under the motor cover and states the real input in watts or amps. That is the one specification you can establish with certainty, in person, in a minute. How to read it.
• Measure the belt. Deck length decides whether you can run on it, and it is the specification that most often makes a machine unusable. Take a tape measure to the viewing.

Run it up to speed before you hand over money. Listen for the belt slipping under your weight, check the belt tracks centrally, and put it on its maximum incline and back down.

If you have one, we would like to hear from you

A photograph of the rating plate, or of the specification page of the printed manual, would let us establish figures for this machine properly and grade them honestly rather than leaving this page as it is. Send it over. That is how an E becomes a D or a B.

Buying new instead

If you are not committed to this particular machine, a current model comes with a warranty, a manufacturer who answers the phone, and published specifications you can check before you buy. Start with what actually decides whether a treadmill suits you.