The Nautilus U618 is a popular residence upright bike that provides a good combination of performance as well as cost. For roughly $600, you get a comfy stationary bicycle that is filled with exercise alternatives and simple to establish.

Emphasizes for the U618 include 29 workout programs, bluetooth connection to physical fitness applications, as well as a consisted of breast strap heart price screen.

Basically- the U618 isn’t best, but for the price it is difficult to defeat (I actually believe it is among the most effective upright bikes on the marketplace).

If you’re searching for a good stationary bicycle to contribute to your residence fitness center, the Nautilus U618 might be a great option. This review is below to aid you figure that out.

In this testimonial, we’ll go over whatever this bike does and doesn’t have going for it. In the long run, you’ll know whatever you need to know about this model to choose whether or not it’s the appropriate suitable for ya.

The Nautilus brand belongs to Nautilus, Inc. (makes sense) which possesses numerous various other brand names like Schwinn and Bowflex. You’ll observe a lot of resemblances in between the 2 brand names (Nautilus and Schwinn that is), however there are some subtle differences.

The U618 is almost similar to the Schwinn 170, which is also a leading version. Inevitably, I would certainly choose the U618 over the 170 since the service warranty is far better and the weight capacity is a little greater.

The U618 is Nautilus’s highest-end upright bike. Improvements over the U616 consist of a better seat, weighted pedals, a turning console, a heavier structure, as well as a consisted of breast strap.


  • Wireless chest strap included
  • Weighted pedals
  • Easy assembly
  • Good warranty
  • 29 workout programs
  • 25 levels of magnetic resistance
  • Fully adjustable seat
  • Multigrip handlebars
  • 325 lb weight capacity
  • Tilting console
  • DualTrack display
  • Bluetooth compatibility with fitness apps


  • 10 lb flywheel
  • Some complaints about seat comfort


Flywheel weight is a crucial topic for spin cycles due to the fact that these bikes are designed to imitate the feeling of riding a road bike. The larger flywheel supplies a smoother flight due to the fact that it constructs a lot more momentum as it begins rotating.

Larger flywheels can additionally supply even more general resistance (in theory) since it takes more power to get it relocating the first place.

This comes in handy when doing the higher strength exercises that rotate cycles are usually made use of for.

Yet flywheel weight is necessary to think about for any stationary bicycle (or elliptical for that way). Despite what sort of stationary bicycle your riding, heavier flywheels are still mosting likely to supply a smoother ride.

Upright bikes don’t typically promote their flywheel weights because a lot of house devices feature truly light flywheels.

This may be because lighter flywheels create lighter machines that are easier to relocate. It may likewise be since lighter flywheels call for less material, making them cheaper to produce.

It may additionally be since upright bikes aren’t normally made use of for high strength exercises, so individuals could believe flywheel weight isn’t as important.

No matter, it took a little doing to locate the actual flywheel weight for the U618, yet according to the people at Nautilus its flywheel considers 10 lb.

This is quite light, also for budget pleasant designs like this one.

And it’s extremely light when contrasted to higher-end models like the Sole LCB, which includes a 30 pound flywheel.

The much heavier flywheels will be appreciated by advanced motorcyclists looking for a more significant piece of equipment.

Although the U618 is packing a very light flywheel, it does feature 25 levels of magnetic resistance. This gives you a lot of control over the intensity of your workouts.

The magnetic resistance system likewise creates actually silent procedure.

In general, the U618 has a light flywheel that is best fit for lower strength exercises. Individuals seeking much more extreme exercises could intend to take into consideration a bike with a heavier flywheel.


Among the largest benefits of selecting a conventional upright bike over a spin cycle is the seat. Upright bike seats are generally a little larger as well as extra supported than the conventional bike seats on spin cycles.

The U618 features a gel seat cushion, however some individuals have actually grumbled that the seat is still too difficult.

If so, you might conveniently switch out the seat for a nicer among your choosing or you might go the extra economic course and purchase a gel seat pillow (I got this one for my Diamondback 510Ic and it aided a lot).

Seat comfort in this rate array isn’t a gim me sadly. What does excite me is that this seat is totally adjustable, suggesting you can adjust the horizontal setting (fore/aft) along with the height.

Having the capacity to manage the fore/aft setting is really handy in discovering the ideal fit.

Generally, the seat on the U618 is rather typical, yet I such as that it is completely flexible.


The handlebars on this bike deal numerous holds, which behaves due to the fact that you’ll find you commonly wish to change your grasp for comfort depending on the workout.

For example, if you’re operating at greater resistance degrees (or standing) you’ll more than likely want to get the deals with in the farthest placement from you (referred to as the 3rd placement in cycling I believe).

The U618 likewise features a flexible elbow rest- a quite cool function I have not seen much on other designs.

The nicest attributes of the handles in my point of view, are the up/down resistance switches situated at the end of each take care of. This makes it simple to swiftly readjust the resistance without having to modify your grasp during your workout.

You likewise have the integrated grasp heart price screen located in the front of the handlebar.

In general, the U618 scores very in the handlebar division with the flexible elbow joint remainder as well as the integrated resistance switches.


Framework honesty is an essential to your overall comfort level when working out on a bike. If the framework is weak and lightweight, you’re not gon na really feel steady throughout your flight.

This is a typical problem with a great deal of economical stationary bicycle.

Framework toughness is also crucial due to the fact that you have to make sure the bike can securely handle you. You truly don’t desire your brand-new stationary bicycle crumbling in the middle of a flight.

The U618 is rather light-weight (only weighs about 83 lb completely assembled) yet has an outstanding weight capacity of 325 lb. The greater the weight limitation, the stronger the frame needs to be.

For a bike in this rate range, this is respectable.


The Nautilus U618 includes the complying with attributes:

Turning console- you can change the angle of the console to improve visibility of the screen and all your workout information throughout usage.

DualTrack displays- the console comes with 2 displays (a bigger one and a smaller one) allowing you to see all your workout data at the same time. The smaller one can be found in convenient when you’re utilizing the tablet owner, which will likely obstruct the big screen.

29 exercise programs- one of the greatest rewards of the U618 is the collection of workout programs it features. If you like a lot of workout variety, this bike has actually got ya covered.

Bluetooth- the U618 is bluetooth suitable with several exercise apps for information tracking.

RideSocial application- you can additionally make use of bluetooth to attach to the RideSocial application, which is a totally free fitness app that allows you to ride with various other people on breathtaking tracks around the world.

Wireless upper body band included- not only is this bike compatible with cordless heart price tracking, yet Nautilus consists of one with purchase. An appealing wonderful perk for a bike in this rate range.

Built-in audio speakers- you can pay attention to your cell phone or mp3 player with the console on the built-in audio speakers.

Heavy pedals- weighted pedals make your pedaling activity a little smoother they ensure the pedal is constantly facing upright, that makes it much easier to obtain your feet situated prior to each trip.

Fan- there’s a built-in cooling fan to assist keep you comfortable throughout your more arduous exercises.


Placing the U618 with each other is a rather simple job that a lot of able bodied folks must be able to complete by themselves without paying additional for specialist help.

Nautilus does a fantastic task on their assembly directions. Each action comes with huge images as well as composed instructions walking you with each task.

I particularly like that they amplify the equipment that is to be used for each and every connection- definitely makes it less complicated to identify which bolt and washer goes where.

The necessary Allen wrench and screwdriver device are included (although I don’t like utilizing that little screwdriver thingy, I ‘d much rather use my very own).

Generally, assembly is rather very easy. I ‘d anticipate to invest a hr approximately finishing the job.


The Nautilus U618 comes with the complying with guarantee:

  • 15 year structure
  • 3 year parts
  • 1 year labor

For a bike in this rate range, this guarantee is pretty good. We need to anticipate to see a lifetime structure service warranty on higher-end bikes, but I think 15 years is fair. Especially when contrasted to the various other bikes in this cost range.

And also, would any individual truly be let down if they only got 15 years of use out their exercise bike??

The parts warranty, at 3 years, is respectable too. Also greater end designs seldom exceed 5 years on parts. One year on labor is likewise basic, specifically for this price.

In general, I like the guarantee, good task Nautilus.

Final Thoughts

Nautilus is a reputable house physical fitness brand known for providing top quality, inexpensive items. Their U618 fits this mold flawlessly.

The U618 comes packed with 29 workout programs as well as 25 resistance degrees. This will certainly provide you a lot of options in terms of workout variety and also strength.

I likewise such as that this bike can take care of individuals as much as 325 pound- this shows a solid structure as well as high quality building that shouldn’t be presumed in this price range.

The tech attributes are additionally rather outstanding right here. I’m pleasantly surprised that Nautilus includes a free cordless upper body strap with acquisition.

The most significant drawback is probably that 10 lb flywheel- it’s truly light, also for this rate range.

Overall though, I believe the U618 has a lot to supply. I think it would work well for beginner to modest degree cyclers that are searching for a respectable upright bike.

More advanced professional athletes or individuals looking for a bike with a much more industrial feel must consider a more robust bike, however, for the cash, the Nautilus U618 is easily among the very best exercise bikes readily available. A wise buy without a doubt.


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