ASUNA 5150 Magnetic Bike Review 2018

ASUNA 5150 Magnetic Bike

ASUNA 5150 Magnetic Turbo Indoor Bike Review

Brand new in 2017, this bike from ASUNA ticks all the boxes for those looking for a solid, commercial quality bike to use in the comfort and convenience of their own homes.

Cycling is an ideal way to improve your health and fitness as it is a low-impact and safe workout for the heart, lungs and legs.   Cycling on an exercise bike can help you to lose weight and improve your health parameters such as blood pressure and cholesterol profile.  This ASUNA 5150 Indoor Bike can be utilised for workouts that are easy.  It is also highly suitable for spinning and interval training sessions.

Our full ASUNA 5150 Bike review

The ASUNA 5150 Magnetic Bike has been released for sale just last year.  The bike has been made by Sunny health products.   Sunny are one of the most popular bike makers, have an excellent reputation for creating and developing good quality and sturdy exercise equipment suitable for home use.

The ASUNA 5150 Magnetic Bike is regarded as a ‘commercial-grade’ bike which means it is one of the highest quality products that SUNNY have developed to date.  This bike is therefore similar in build and structure to the types of bike you would find in a commercial gym.

This review will focus on the features of the ASUNA 5150 Magnetic Bike including:

  • Superior grade steel frame and exceptional build quality and sturdiness
  • 37.5 lb steel and aluminium flywheel
  • Chain drive mechanism for smooth and quiet workouts
  • Fully adjustable seat and handlebars
  • Maximum user weight of 350 lbs
  • Build in transportation wheels
  • ‘Micro’ adjustable braking system using magnetic resistance technology

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Frame and Build

ASUNA 5150 Magnetic Bike

The frame of the ASUNA 5150 Bike is made from heavy duty steel and has been built to withstand years of use.   This frame accommodates cyclists of all heights and builds, with a user capacity of up to 350 lbs.    It is heavy and sturdy and will not move or slip during a workout.

The lowest seat setting is 28″ (saddle to pedal) and the highest seat setting is 40″ (saddle to pedal).

See our other bike reviews here:  The best Spin and Indoor Cycling Bike Reviews of 2018

Why is the ASUNA 5150 Magnetic Bike one of the best exercise bikes?


Sunny ASUNA 5100 Magnetic Exercise Bike

This commercial-grade exercise bike is built with a 37.5lb steel and aluminium flywheel.   This is a heavy duty flywheel that will stand the test of time.   More importantly, cycling the ASUNA 5150 Bike will feel like cycling outdoors.   This ASUNA bike provides a smooth, natural ride with no clunking or jerky movements.   Even at high speeds or high resistances levels, this flywheel is smooth and consistent with a near silent operation.  

Resistance can be altered by turning the knob located on the frame below the handlebars.    The ASUNA 5150 Bike uses micro-adjustable magnetic resistance technology  (when the knob is turned clockwise or anti-clockwise, more/less magnets pass over the flywheel, subsequently increasing or decreasing drag.   This allows resistance levels to be altered subtly without awkward or clunky gear changes.


Proper foot placement is fundamental to a smooth riding experience.   SUNNY have made this easy with reversible pedals.   SPD clips are available on one side or a secure foot cage can be used on the other side allowing users to wear regular trainers if they so wish.    Comfort and safety is the priority here with minimum risk of foot slippage.


ASUNA 5150 Magnetic Bike
SUNNY products have pulled out all the stops when it comes to building a comfortable exercise exeperience.  The ASUNA 5150 Magnetic Bike comes with a fully adjustable seat.  This can not only be adjusted up and down but  also forward and aft.  This allows most users irrespective of height or body size to find the most comfortable seating position throughout their workout.

The handlebars are covered in rubber foam allowing cyclists to grip comfortably, without slippage.   The handlebars can also be easily adjusted so riders can customise to their own preference and attain optimal ergonomic placement.  The highest handlebar setting is 44″ and the lowest setting is 40″.

There is also a conveniently placed water bottle holder on the handlebar unit (which does not interfere at all with hand grip or position).

The ergonomic design of the handlebar allow multiple positioning options for a truly comfortable and natural ride.


ASUNA 5150 Magnetic Bike
The ASUNA 5150 Magetic Bike comes pre-assembled with a shipping weight of 123lbs.  The main part of the bike (e.g. the frame, seat, flywheel, resistance mechanism and belt) are already assembled when delivered for your convenience.  All you need to do is attached the stabilisers, pedals, handlebars and the water bottle holder.  This should take around  20 minutes with minimal inconvenience.

The ASUNA 5150 Magnetic Bike has convenient transportation wheels attached to the bike so it can simply be tilted and rolled into a suitable location.


There is a 90 day manufacturer’s warranty on this bike.

Do you need to know anything else? Here are the bike’s specifications:

  • Fully adjustable seat-Up,Down,Fore, Aft
  • Lowest seat setting: 28″
  • Highest seat setting: 40″
  • Height adjustable Handlebar – Up, Down
  • Lowest handlebar setting: 40″
  • Highest handlebar setting: 44″
  • Magnetic resistance with press down system
  • Quite and Smooth magnetic resistance
  • Dual action pedals- Cage, SPD-like Clip
  • Chain drive mechanism for smooth workouts
  • 37.5 lb cast steel and aluminum flywheel
  • Easy to reach Water Holder
  • Built-in transportation wheels
  • Assemble Dimensions: 49″L x 23″W x 49″H
  • Maximum weight capacity: 350 Lbs

Alternatives to the Asuna 5150 Bike:

The ASUNA 5100 Magnetic Bike is also new on the market for 2018

Specifications are slightly lower than the ASUNA 5150 with a user weight of 300 lbs  (compared to 350 lbs).  Here are other alternatives:

Product nameRating Price
ASUNA 4100 Commercial Indoor Cycling Bike, Gray ASUNA 4100 Commercial Indoor Cycling Bike, Gray
ASUNA 5100 Magnetic Belt Drive Commercial Indoor Cycling Bike Silver ASUNA 5100 Indoor Cycling Bike
ASUNA 5150 Magnetic Turbo Commercial Indoor Cycling Bike ASUNA 5150 Magnetic Turbo Commercial Indoor Cycling Bike
BodyCraft SPX Club Indoor Cycling Bike BodyCraft SPX Club Indoor Cycling Bike
Diamondback Fitness 510Ic Adjustable Indoor Cycle with Electronic Display and Quiet Magnetic Flywheel Diamondback Fitness 510Ic Indoor Cycle


Review Summary of the ASUNA 5150 Magnetic Bike

ASUNA 5150 Magnetic Bike

Brand new to the market, this is SUNNY product’s highest specification bike to date.  It is a heavy-duty, commercial-grade bike ideal for cyclists that want to put in the miles and use this bike as a regular training device.


Due to the shipping weight of the bike (around 110lbs), this bike could be be difficult to move into flats and apartments.   It does however come with handy transportation wheels so once it has been assembled, moving the bike around shouldn’t be a problem.

There is no in-built console with this ASUNA bike 5150.  Many users like to monitor their efforts when using an exercise bike – such as time, distance and calories burned.   The ASUNA 5150 Bike does not provide a console for doing this, so we would recommend the purchase of an activity monitor such as a Fitbit that will monitor individual activity levels throughout the day including energy expended when exercising:

In summary, the ASUNA 5150 Magnetic bike is great for individuals that are of bigger build due to the fully adjustable seat and handlebars and the generous maximum user weight of 350lbs.  This is without a doubt SUNNY’s most superior product and that is reflected in the build quality and sturdiness of the machine.

ASUNA 5150 Magnetic Turbo Commercial Indoor Cycling Bike Review Summary:

This bike is regarded as a ‘commercial-grade’ bike which means it is one of the highest quality products that SUNNY have developed to date. This bike is similar in build, quality and structure to the bike you would commonly find in a commercial gym.

If you are looking for a superior product and a great way to work out in the comfort of your own home, then this is the bike for you.