Sunny Health & Fitness SF-B1877 Indoor Cycling Exercise Bike Review

review Sunny Health & Fitness Endurance Magnetic Belt Drive Indoor Cycling Exercise Bike

Sunny Health & Fitness SF-B1877 Indoor Cycling Exercise Bike Review

Any person who is willing to be a healthy and fit person, cannot compromise over health at any chance. If he wants to have a maintained health and a good physique then he needs to do exercise on a regular basis. Exercise is the thing which enhances physical fitness and overall health. It can be in different forms. Cycling is considered one of the best forms of exercise. It strengthens your muscles and boosts your health. It burns calories and body fat and helps in losing weight. Outdoor cycling cannot be done anytime due to some issues like rain, storm, or any unfavorable weather conditions. For solving this problem, manufacturers of exercise equipment have introduced a substitute of outdoor cycling i.e. an indoor cycling bike

An indoor cycling bike allows you to have a great cycling experience like the outdoor cycling in your home. An indoor cycling bike trains you for outdoor activities. It is specially designed for doing workouts in your home. There is a huge variety of indoor cycling bikes due to which they are available in various styles and designs. To enhance your knowledge about an indoor cycling bike, we are here to provide you enough information about one of the best indoor cycling bikes. This SF-B1877 cycling bike which is presented by Sunny Health & Fitness is described below. 

Benefits of SF-B1877 indoor cycling workouts:

  • Makes you feel healthy and fresh
  • Perfect for weight loss
  • Boosts heart health
  • Burns calories
  • Reduces stress and tension
  • Strengthens legs, abdominal, and lower body muscles
  • Good for toning
  • Burns body fat
  • Offers low-impact workout
  • Boosts brain functions
Sunny Health & Fitness Endurance Magnetic Belt Drive Indoor Cycling Exercise Bike

Sunny Health & Fitness Endurance Magnetic Belt Drive Indoor Cycling Exercise Bike

Sunny Health & Fitness SF-B1877 Overview:

This endurance magnetic indoor cycling bike SF-B1877 is equipped with an excellent belt-driven system. This model is especially for low-impact fitness. It is composed of a performance monitor which allows you to track your time, distance, calories, speed, RPM, odometer, and pulse while doing your workout. This is an excellent cycling bike for beginners and enthusiasts.


It is a perfect model for anyone who needs recovery training to burn calories while starting an in-home workout routine. For changing the intensity of your workout you can increase or decrease the resistance as it has an adjustable magnetic resistance mechanism. This stationary bike has a flywheel weighing 29 pounds and has a maximum user weight capacity of 265 pounds. It will deliver you the fitness of next level.


Brand: Sunny Health & Fitness
Color: Silver 
Model: SF-B1877
Dimensions: 48.8 x 20.1 x 48.6 inches
Weight: 82.9 pounds
Resistance mechanism: Magnetic 
Material: Steel
Drive system: Belt 
No. of resistance levels: 100
Type: Upright cycle
Maximum weight recommendation: 265 pounds
Pedal style: Caged
Flywheel: 29 pounds 
Transport wheels: Yes
Performance monitor:  Yes 
Extras: Bottle holder, device holder
Seat: Fully adjustable
Handlebars: 2-way adjustable
Resistance: Adjustable


  • 29 pounds flywheel 
  • Adjustable magnetic resistance
  • 265 pounds user weight capacity
  • Performance monitor
  • Device holder for entertainment
  • Bottle holder
  • 4-way adjustable seat
  • Caged foot pedals
  • 2-way adjustable handlebars
  • Emergency stop brake
  • Adjustable inseam height: Min: 27 inches / Max: 37 inches
  • Handlebar to seat: Min: 14.5 inches / Max: 19.29 inches
  • Q-factor: 206mm
  • Transportation wheels
  • Pulse sensors
  • Floor stabilizers

Sunny Health & Fitness Endurance Magnetic Belt Drive Indoor Cycling Exercise Bike


Following is the detailed description of the SF-B1877 cycling trainer:

  • Performance monitor:

The specialty of this bike is that it is composed of a performance monitor. Not every bike has a digital LCD monitor so it is a plus point of this bike. The monitor tracks your ride and displays time, speed, distance, odometer, calories, RPM, and pulse. 

  • Micro-adjustable resistance:

The intensity of your workout is under your control. So you can increase or decrease the intensity by using a convenient tension knob which is located in the bike. By twisting the tension knob according to your need, you can make your workout more challenging and effective throughout your fitness journey. 

  • Q-factor:

This exercise bike has a Q-factor of 206mm. Lower Q-factors delivers better ergonomic and biomechanical efficiency. The Q-factor allows the rider to pedal harder and faster effectively.

  • 29 pounds flywheel:

This bike has a flywheel weighing about 29 pounds.  The flywheel is engineered for a better speed and good stability. It will create more momentum for a longer time. 

  • 4-way adjustable seat:

The seat of the bike is four-way adjustable. It is comfortably adjusted up and down, back and forth by just twisting a little knob. The seat is cushioned completely. 

  • Device holder:

The handlebars of this exercise bike have a device holder. For getting rid of a boring workout you can make it an enjoyable workout by placing your phone or tablet on the device holder. By doing this, you can enjoy your favorite music track or movie while doing exercise. 

  • Transportation wheels:

The portability of the bike is easy by the 2 transportation wheels that are located at the front base of the bike. These wheels allow the user to move the bike from one place to another. 

  • Bottle holder:

Keeping yourself hydrated is essential while doing workout. So you must have easy access to water or any other drink you want to have while working out. This exercise bike has a bottle holder which allows you to enjoy your favorite drinks while doing exercise. 

  • Pulse sensor:

Your pulse rate should be measured as an important tool for a correct and an efficient exercise. This pulse sensor measures your pulse rate and helps you to maintain your heart rate. 

  • Adjustable non-slip handlebars:

The handlebars are 2-way adjustable. They provide great comfort while holding them. The rider enjoys multiple hand positions. These handlebars offer a great grip to the user’s hands and also they prevent them from slipping. 

  • Floor stabilizers:

To make the bike stable on even and uneven surface it comes with floor stabilizers on the both bases of the bike. These stabilizers prevent the exercise cycling bike from any kind of movement while riding it. 

  • Fitting and adjustments:

The seat and handlebars can be adjusted in the following ways:

  • Adjustable inseam height: Min: 27 inches / Max: 37 inches
  • Handlebar to seat: Min: 14.5 inches / Max: 19.29 inches

  • Caged foot pedals:

The foot pedals of the bike are caged therefore they offer proper foot placement and the user’s feet do not slip while pedaling. The straps provide maximum stability and safety to the user’s feet.

Sunny Health & Fitness Endurance Magnetic Belt Drive Indoor Cycling Exercise Bike


  • The bike is easy to assemble.
  • The seat is adjustable in 4 different positions.
  • The handlebars are also adjustable and offer great grip.
  • The performance monitor time, distance, speed, calories, RPM, and pulse thus you can easily track the performance of your workout. 
  • To remain hydrated while working out there is a water bottle holder so that you can have easy access to it. 
  • The belt drive mechanism is too smooth and silent thus the bike does not produce noise while running.
  • There are adjustable floor stabilizers on both bases.
  • The front base of the bike has transportation wheels that aid in portability.


  • The performance monitor does not have a LED backlight.
  • The seat is quite stiff and uncomfortable to sit in.


This model SF-B1877 of exercise bike presented by Sunny Health & Fitness has brilliant features that can’t be ignored. It owns a quiet belt drive mechanism due to which it does not produce noise that’s why you enjoy your workout even when your family members are sleeping without disturbing them. This bike is made of premium quality steel therefore it is a long-lasting equipment of exercise. It is a perfect choice for the cycling enthusiasts.

The resistance of this bike can be adjusted i.e. increased or decreased by a knob. This bike will prove to be a smart choice for you to keep your health maintained. This is a good looking solid bike which is great for users of all levels. It is a perfect choice for muscle toning, high-intensity cardio workouts, stamina development, interval training, and weight loss as well. It’s also considerably more affordable than any commercial-grade bike and has all the characteristics that an expensive indoor cycling bike owns. 

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