Reebok One GB40s Exercise Bike Review

Reebok, one of the best-known brands in home fitness, has developed a reputation for building quality home fitness machines. Their current range is extensive, featuring a wide variety of models. We’ve previously covered some of their different ranges and we thought it’s about time to take a look at their GB40s exercise bike to see how one of their budget models stacks up.

Assembly is pretty much as you’d expect from a Reebok machine and took less than 40 minutes to complete the build. All parts were present and correct on our test model, with clear instructions and all components fitting together as intended.

Design is a subjective thing and one man’s heaven is another man’s hell, but in your reviewer’s opinion, the GB40s is definitely not one that’s going to win design awards. The aesthetics of the bike look very 1990’s, so if you like retro things then the GB40s may well appeal but if you like a modern design then you may feel the same as your reviewer on this element.

Having set up the bike the next thing to do is get a comfortable riding position. The saddle adjusts horizontally and vertically via a quick release mechanism and is quick and simple to operate. While it was possible for some members of the team to get a great riding position easily, others found that due to the non-adjustable handlebars being in a fixed position and the overal shape of the frame, there was some compromise required. 

The console appears to be a more basic version of previous models we’ve tested with the upside being that with just 6 buttons in total to contend with making it very easy to operate. The 5” LCD display is very much the same layout and format that we’ve seen on previous Reebok bikes and is bright, logically laid out and easy to read. Selecting a preset program is simple enough, as is getting started on a manual program, which really couldn’t be simpler. It’s also easy to track your progress with the console feedback providing the essentials such as speed, time, distance, calories, pulse, watts, rpm and so on.

There are 12 preset workouts including target workouts for time, distance and calories and there’s also a user-defined program function that allows you to create your own workouts and store them for later use.

The most important part of any exercise bike, bar none, is how it feels to use. The 9kg flywheel on the GB40s does make for a smooth experience and as you get past the point of no return in the cycle the smoothness continues, which is a good sign. The not so good sign is the overall stability which isn’t as great as it could be. There are 32 levels of resistance, with the transition from one level to another being fairly quick and responsive.  These elements combine to make for a smooth and pleasant enough experience, though the lack of adjustment in the handlebar on the GB40s  may (and did for some members of the team) require a bit of compromise and the overal construction is reflected in the price. Not perfect, but good enough to get a fairly comfy workout as long as you’re not already an experience rider.

Overall the GB40s is okay. The build quality isn’t the best but it functions well enough. It is, though, let down by a few things.. There’s no built-in wireless heart rate receiver so heart rate measurements via the hand-pulse sensors are an approximation at best and, as we’ve already touched upon there’s a lack of adjustment in the handlebars which, for some users, will mean that it’s not possible to get a great riding position so it will work fine for some and not so great for others making a mixed bag, albeit a relatively inexpensive one.

Best Price

The Reebok One GB40s is not currently available from any retailers we're aware of in the UK.
It may be worth looking for a used machine on ebay

Review Summary - In Brief

We can see where Reebok is coming from with the GB40s. It's functional and does the job of providing a workout. For many, the Reebok name will be enough to persuade them to part with their hard-earned cash and it will definitely do a job, but the truth is that while this is an okay bike, it's not quite as good as it might be and doesn't offer the same value as some of the competition. Take, for example, the DKN AM-3i which features a wireless heart rate receiver and user profiles, both of which are lacking on this Reebok model. The AM-3i is also built noticeably better built and has a heavier 22kg flywheel but comes in at slightly less than this Reebok model. The GB40s is a good bike, but the competition is stiff and you can better value for your money elsewhere right now.

Reebok One GB40s Specifications

    • 9kg (19.8lbs) flywheel
    • 32 levels of magnetic resistance
    • 5″ LCD display
    • 19 programmes (12 preset programmes, manual, target time, distance, calories, watts control, recovery, user defined programme)
    • Feedback: speed, time, distance, calories, pulse, watts, rpm
    • Heart rate measurement via hand grip pulse sensor
    • Dimensions in use (L x W x H): 102.3cm (40.3”) x 48cm (18.8”) x 132cm (52”)
    • Max. user weight: 120kg (264.6lbs)
    • Product weight: 34kg (75lbs)
    • Conveniences: adjustable seat, self levelling pedals with pedal straps, bottle holder, transportation wheels
    • Mains powered
    • Warranty: 2 years for parts and labour

Reebok One GB40s Exercise Bike - Console / Display Unit

Reebok One GB40s Exercise Bike - User Reviews

The Pros

  • Smooth and quiet
  • Useful range of workouts

The Cons

  • Not everyone will be able to get their ideal riding position
  • Lack of heart rate receiver
  • No user profile settings
  • Not as sturdy as it might be
Reebok One GB40s Exercise Bike Reviewer Ratings


Appearance - 8.5
Smoothness - 8
Comfort - 8
Programmes - 8
Ease Of Use - 8.5
Warranty - 8.5
Value for Money - 7.5
Best Price

The Reebok One GB40s is not currently available from any retailers we're aware of in the UK.
It may be worth looking for a used machine on ebay

Also see our Exercise Bike Comparison Table

Whilst every effort is made to give you accurate information we cannot guarantee the technical specification. Models change on a regular basis and may differ slightly from the above review. We recommend you contact the retailer if you have a question regarding technical data. Please read our Legal Disclaimer

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