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Sunny Asuna 6100 Sprinter Indoor Cycle Review

Last Updated on June 27, 2021 by Jeff


Sunny Health and Fitness Asuna 6100 Sprinter CycleThe Sunny Health and Fitness Asuna 6100 Sprinter Cycle is in the higher price range for the brand and designed to be similar to a spin class style bike. Rear drive magnetic resistance and a 37-lb flywheel allows you to adjust to find the desired resistance no matter what your level of fitness is currently. The push-down braking system lets you stop quickly.

Both the seat and handlebars are adjustable so that you can find a comfortable position during your ride. Dual sided pedals let you choose how you ride by allowing you to use SPD cleats on the click in side or regular shoes in the strap in side. Either side gives you the safety and security you need for a real sprinting-style workout.

Technical Info


  • Height: 43”
  • Width: 22”
  • Length: 52”
  • Item weight: 127 lbs.
  • Max user weight: 350 lbs.
  • Inseam height minimum: 28”
  • Inseam height maximum: 42”

Features:Sunny Health and Fitness Asuna 6100

  • Magnetic resistance, rear drive with a 37-pound flywheel means that you get just the right amount of resistance no matter what style of workout you prefer as well as quiet, smooth operation.
  • Foot levelers in front keep this sprinter bike more stable even when you are standing up and pedaling hard.
  • Push down braking system gives you full control and lets you stop quickly during emergencies.
  • Dual sided pedals let you choose how you manage your feet’s safety. One side is click in for SPD cleats. The other side is an adjustable foot strap for use with regular gym shoes.
  • Seat and handlebars are both fully adjustable for maximum comfort and proper positioning.
  • All adjustments including resistance level are done with the twist of a knob.

Monitor Features

  • Full function heart rate monitor displays distance, time and pulse rate.
  • Scan feature scrolls through all stats to keep you super motivated.
  • Chest strap to monitor your heart rate.
  • Additional mount for iPad, tablet or book


  • Frame: 3 years
  • Parts and Components: 90 days

Shipping and Assembly

Sunny Health and Fitness Asuna 6100 Sprinter Cycle Indoor
Because this is one of the higher priced models offered by Sunny Health and Fitness, it is almost a given that you will qualify for free shipping through one of the many sellers. Even if you have to pay for shipping, take advantage of that service because at 127 lbs, this is not a bike you want to have to put in your car and then carry in to your house if you can avoid it.

Assembly is super easy with most steps already done for you. The manual is easy to follow, and the diagrams are clearly labeled. All parts and necessary tools are included in the box.

What We Love About the Sunny Health and Fitness 6100 Sprinter Cycle

Super Stability During Sprinting Workouts

Some home exercise bikes wobble at higher speeds and may feel too unstable to really stand up and go all out. This is a solid machine with quite a bit of weight to it. Foot levelers that are placed along the front make this bike even more stable. You can stand up and pedal as hard as you want to without wobbling.

Dual Sided Pedals

Whether you prefer to use cycling cleats or regular gym shoes, you have the option with these dual sided pedals. Use the click in cleats on one side and you’ll feel like you’re taking a spinning class. Slip your foot in the adjustable straps on the other side for ease of use and convenience.

Adjustable Resistance and Quiet OperationSunny Health and Fitness Asuna 6100 Sprinter Indoor Cycle

The Sunny Health and Fitness 6100 Sprinter Cycle has a 37-lb flywheel which gives a good range of resistance for all levels of fitness. Rear drive magnetic belt gives you the power without the noise. You can concentrate on music, television or just the sound of your breathing without being distracted by an overly loud machine.

What Isn’t so Great

Changing the Monitor Batteries is a Nightmare

Once the bike is entirely put together and you’ve used it for a while, you will notice that it is time to change the monitor batteries. In order to get to the back of the monitor itself, you have to unscrew and remove the tablet mount. After that you have to unscrew part of the monitor to access the battery panel, change the batteries and then put everything back together.

Some May Develop a Noise After a While

The Asuna 6100 Sprinter Cycle was designed to be quiet and for the most part it meets that goal. However, some bikes have reportedly started developing a variety of noises after they have been in use for a while. The noises vary from a low-pitched hum to a high-pitched whine and may become louder with time.Sunny Health and Fitness Asuna 6100 Sprinter

How the Sunny Health and Fitness Asuna 6100 Sprinter Cycle Compares to the Asuna Minotaur

Both the Asuna Sprinter Cycle and the Asuna Minotaur have the magnetic belt, rear drive. Both are similar in size with the Minotaur just a little smaller overall. The Minotaur also has a smaller min/max inseam. The flywheel on the Sprinter is 37 lb while the Minotaur’s is 33 lb. The Sprinter can handle a max user weight of 350 lb while the Minotaur can only handle 330 lb. Both are solid bikes in the upper price range.

Final Word on the Sunny Health and Fitness Asuna 6100 Sprinter Cycle

Made to be similar to a commercial spinning bike, this Sprinter is not only solidly built but stable during all types of workouts. Adjustable seat and handlebars allow you adjust to the right height for proper form. The heart rate chest strap lets you monitor your intensity and the monitor’s other functions allows you to set goals, so you can track and crush them.

It’s great to have the option of two different pedals with this Sprinter, especially for trainees who like a spinning workout without having to go to a gym.


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