Precor RBK 615 Recumbent Bike Review

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Precor RBK 615 Recumbent Bike Review

Precor RBK 615 Recumbent Bike Assurance Series is an entry-level recumbent bike of the Precor Assurance Series. Being an entry model, still, it possesses almost similar features of the top-models of recumbent bikes.

It has a fantastic step-through design, 25 resistance levels, six preset programs, an adjustable seat with lumbar support, and dual-sided pedals. Precor, which is one of the best fitness equipment manufacturers in the US, has designed this bike for users of any height or fitness levels.

It is a stylish bike that will add value to your home and your daily workout schedule.Read the Precor RBK 615 Recumbent Bike Assurance Series review 2021 here and learn in detail about the features and functions of this beautiful machine.

Best Suited to Whom?

The Precor RBK 615 Recumbent Assurance Series Bike is an ideal machine for anyone with low mobility, mainly because of its superb step-through design. It has a low step-over height and a full step-through frame which makes mounting and demounting from the bike very easy.

Also, you can adjust the seat at an ideal distance from the pedals, which makes it a perfect bike for users of any height. This bike is rated as one of the top-selling recumbent exercise bikes for homes. Also, being an entry-level recumbent bike of the Precor Assurance Series, it is cheap and is one of the best recumbent bikes under $3000.

Precor RBK 615 Recumbent Bike Assembly, Design & Build Quality


The Precor RBK 615 exercise bike comes mostly assembled in the package. Precor has done a great deal of effort to make the assembly process simple and easy. You must take the help of one more person to smooth out the whole assembly process.

Once you have attached the base stabilizers, be sure that your machine will remain stable throughout. Then you can attach the console, seat, handles, and bottle holder. You can refer to the instruction manual for stepwise guidance.

Design and Build Quality

The RBK 615 Assurance Series Recumbent Bike has a low-profile, step-through design and a wide step-through frame. This means you can easily mount and dismount from the bike and is suitable for people with low mobility. Its seat is AirFlex with extra cushioning and gives an exceptional level of lumbar support.

The seat is adjustable, and you can adjust it as per your height and distance from the pedals to provide a comfortable posture. It has a belt-driven, eddy current resistance system which ensures a quiet operation even at higher resistance levels.

The pedals of this bike are dual-sided which you can also customize. It has a streamlined LED window, which is easy-to-use. This recumbent exercise bike is designed with six preset workout programs and 25 resistance levels.

It is not a portable machine and also does not have much weight; hence, it is easy to shift from one place to another with the help of one person.

This exercise bike has a high build quality, which makes it a very reliable machine. Its wide step-through frame makes it easy to get on and off the bike. The steel frame is super sturdy, which can take weights up to 350lbs. The seat is comfortable and adjustable too. Its weight is not much, but it is still a very sturdy machine.

Precor RBK 615 Recumbent Bike Features

Adjustable Resistance

The Precor RBK 615 bike has a belt-driven resistance system. This eddy current resistance offers a quieter operation even when you are working on the highest intensity level. This bike offers 25 levels of resistance.

Thus you have a wide variety of workout options. You can keep yourself challenged and try out a new workout each day. The current resistance level you are working on is displayed on the console.


The seat of this Precor Exercise Bike is well-ventilated and cushioned. You will enjoy ultra-comfort air flex cushioning while seated on this seat. It uses an exclusive suspension system to provide the ultimate lumbar support.

It is also an adjustable seat where you can adjust the seat according to your height and at an appropriate distance from the pedals. This implies that this machine is ideal for different users of different heights.

LCD Display

The display of this recumbent bike is a streamlined LCD console. It has the six quick-select buttons to access the workout programs, numeric keypad, and a screen at the center which displays the vital workout details, like calories, heart rate, distance, etc.

It comes with tactile dome keys that are easy-to-use. The visuals are bright and enable easy program exploration.

Charging Point

This is a self-powered machine; hence, no charging is required.

Resistance Level

This exercise bike by Precor comes with 25 resistance levels. This system is very smooth and consistent and offers a fantastic workout at all the levels. Level 1 is at 20rpm, and Level 25 is at 150rpm.

Ergonomic Pedals

The pedals of RBK 615 recumbent bike are dual-sided, which means these are durable and have a long-running life. They also come with integrated, adjustable straps to give a firm grip to the feet.

The pedals are pretty wide, which makes them accommodate all feet sizes. The pedals are very comfortable to use and will not tire your muscles.

Heart Rate Monitoring

You can monitor your heart rate on this machine via the built-in touch sensor. It is Polar compatible with a 5Khz wireless chest strap transmitter. This unit also comes with a SmartRate program system, which is a set of series of LED lights on the console which light-up as per your heart rate zone. These five heart rate ranges are:
Fat Burn

Weight Capacity

The frame of this machine is sturdily built and can take weights up to 350lbs.

Other Features

  • Bottle Holder: This unit comes with storage space for your bottle so that you can keep yourself hydrated in-between exercises.


  • PVS: You can attach an optional Personal Viewing Screen along with the console to watch videos while exercising. This entertainment option is excellent for users who are going to spend a lot of time on this machine.

Precor RBK 615 Recumbent Bike Workout Programs

Built-in Fitness Programs: The Precor RBK 615 recumbent bike comes with six preset workout programs. In case you are looking for a more variety of applications, then you can try the Precor RBK 835 Recumbent Bike Experience Series.

You can select the desired workout program via the six buttons on the console. These programs are – Interval, Manual, Weight Loss, Basic Heart Rate Control, Hill Climb and Random. These home fitness programs will help you achieve your fitness goals faster.

Precor RBK 615 Recumbent Bike Warranty

Precor is a well-known brand not only for its outstanding products but also for the warranties it offers on its products. The Precor RBK 615 exercise bike comes with a Lifetime Warranty on Frame and 10-years on Parts.

Customer Support is always helpful and ever-ready to provide you with expert solutions. Their Return Policy is excellent, which gives you the freedom of returning or exchanging the product, within 30 days of purchase.

Precor RBK 615 Recumbent Bike Pros and Cons


  • The wide frame and step-through design allow easy getting on and off the machine
  • The seat is ultra-comfortable with a unique suspension system
  • The pedals are extra-wide, dual-sided, and have adjustable straps
  • The console has clear visuals and is easy to use
  • The six preset workout programs add variety to the daily workout
  • The 25 resistance levels help you achieve results faster


  • No Bluetooth connectivity
  • No goal tracking facility


The above review of the Precor RBK 615 Recumbent Bike Assurance Series highlights the main features and functions of this machine. It will add value to your home workout by combining reliability and ease-of-use. It delivers an extraordinarily smooth pedaling motion and biomechanically correct geometry.

It has club-level innovations and a great mechanical design. Its overall build quality and excellent and has features comparable to the top-model of the Precor Recumbent bikes, i.e., the Precor RBK 835 Recumbent Bike.

Its seat is AirFlex and offers great lumbar support. With a wide range of resistance levels, workout programs, and ergonomic pedals, this machine will surely enhance your workout experience each day.

Other Precor Recumbent Bikes