Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike

Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike
Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike
Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike
Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike
Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike
Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike
Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike
Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike

Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike


24 reviews

Regular price

List Price:

Sale price $599.00 Save $140.99
72 in stock

Resistance icon

Micro-Adjustable Resistance

Sturdy frame icon

285 lb Weight Capacity

Flywheel icon

40lb Flywheel

Seat icon

4-Way Adjustable Seat


Whether you are a fitness studio owner or an at-home fitness enthusiast, the ASUNA 4100 Commercial Indoor Cycling Bike is ideal for any type of use! Made of heavy-duty, commercial grade steel parts and materials, this bike can go the distance when it comes to durability and performance. Featuring pedals that accommodate both clip-in cycling shoes and standard gym sneakers, this bike is fit to suit any rider's preference! The ASUNA 4100's elite, commercial grade quality chain drive operation provides a smooth and quiet workout whether being used in a large gym or the comfort of your own home. This bike has a fully adjustable seat and handlebar, making it customizable and ideal for multiple riders...perfect for any fitness studio or exercise facility!


adjustable felt pad resistance

With a simple adjustment of a knob, you can increase or decrease resistance so your Asuna 4100 workout can remain challenging and effective throughout your fitness journey.

Your ASUNA 4100 is equipped with a quiet and smooth felt fabric brake pad system. The resistance system allows for various tension levels which allow you to create an intense workout thus burning more calories. Mix up your workout by changing your resistance workout to tone up and build muscles.


4-Way adjustable handlebars

Lose the calluses with the improved Sunny Health Handle Bars. Advanced ergonomic designed handles bars deliver a comfortable ride and allows for multiple hand positions. These easily adjustable and completely customizable handle bars provide comfort while enduring those long rides. The durable multi-grip handles can adapt to any biking condition adding extra comfort in rough conditions. Padded and slip free to provide extra safety and ease.


4-Way Adjustable Seat

The comfortable seat can be easily adjusted for height and proximity to handlebars. Easily adjust back and forth and/or up / down) for convenience and stability so your workout can remain comfortable when riding for long periods of time. Adjustable seating allows for multiple people in your household to use the equipment comfortably and efficiently. Having the correct seating adjustment is important to assure you won’t fall while giving it your all


Bottle holder

Stay hydrated in the most demanding of workouts. The convenient drinks holder keeps your favorite refreshing beverage at arm’s reach! Proper hydration will ensure your health and workout performance stays at optimum levels. Carrying your water bottle while you ride will help you to ride longer mileage without needing to stop for rehydration.



Keep your momentum up and your feet moving safely with the Sunny Health and Fitness Foot Pedals. Textured non-slip foot pedals will accommodate all sizes, while the remaining grip will ensure safe footing during the most demanding and vigorous workouts! Foot straps keep your feet saddled in so you can focus on the workout without feeling unbalanced.


Emergency Stop Brake

The cycle bike trainer resistance system gives you the experience of a realistic, real-road feeling while the built in push down emergency brake will bring the bike to an immediate stop.



The seat can be adjusted for height and proximity to handlebars for setting up your cycle bike, sizing and fitting.

  • Adjustable Seat to Handlebar Distance: Min 14 in/ Max 25 in
  • Max User Leg Inseam: Min 30 in / Max 38 in


Making the transformation of your home into your own personal fitness studio is effortless with these convenient transport wheels. Simply tilt and roll out for use or away for storage, no need for heavy lifting or muscle strain. The wheels at the front of the unit allow the user to move their bike around with ease, from room to room, or store it away out of sight.


Floor Stabilizers

No matter the surface of your home, you will have a stable, stationary workout. Adjust the height of each foot stabilizer to create a balanced riding experience, even if you have uneven floors! Exercise more intensely without worrying about rocking or tilting!



40 lb chromed solid flywheel for stability

Micro-Adjustable Resistance

Smooth and reliable chain drive system

Caged/SPD compatible foot pedals

Floor stabilizers


Cushioned seat

Seat Dimensions: 10.5L x 6W x 2.5H in

Easy 4-way adjustable seat

4-way adjustable handlebars

Integrated transportation wheels for easily mobility

Bottle holder


285 lb. weight capacity

Felt Pad Resistance

Heavy duty crank system

Adjustable inseam height: Min 30 in / Max 38 in

Seat to handlebar: Min 14 in/ Max 25 in



Warranty: 5 year structural frame 180 days other parts and components

Product weight: 110 lb

Product dimensions: 46L X 25W X 51H in

Ship weight: 121 lb

Ship dimensions: 42.5L X 9.5W X 35.5H in

Warning iconCancer and Reproductive Harm -

  Warning iconCancer and Reproductive Harm -


The Product Manual may be downloaded below. If you have any questions, please feel free to contact our customer care team.

This bike comes with a micro-adjustable resistance knob so that even the slightest increase or decrease in resistance are smooth and customizable.

Yes! We have a great library of workouts that you can perform on your indoor cycle, which can be found on the Workouts section of our website as well as on our YouTube channel.

A belt drive system has a belt that connects the pedals to the wheels for a smooth ride. A chain drive system uses a chain to connect the wheels to the pedals and the feeling and sound of a chain may feel similar to riding a bike outdoors.

The resistance you’ll feel with contact resistance is incredibly strong. A felt pad is used to apply pressure to the flywheel through varying degrees of contact. The resistance can be adjusted by twisting a micro-tension knob.

Feel confident sitting on our durable design with a 285LB max user weight limit.

The 40 lbs flywheel provides a more realistic riding experience and ensures consistent momentum throughout your ride.

Yes! The both the handlebars and seat are 4-way adjustable (up, down, forward, backwards) for a fully customizable fit.

The best way to see if this bike would be suitable for you is to measure your inseam. This bike can accommodate inseams between 30" and 38".

Yes! This bike has caged & SPD-compatible pedals with a clip so that you can use cycling shoes with cleats to connect directly into the pedals.

There is a 5-year warranty on the structural frame and 180-day warranty on other parts and components.

Customer Reviews

Customer Reviews
4.8 Based on 24 Reviews
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Valerie S.
United States United States
Best gift I have given myself!

I LOVE it. Thank goodness I didn't waste $ on the Peloton. This is a solid piece of equipment. It feels like it will last for a very long time. My husband put it together in 15 minutes. I knew very little about indoor cycling bikes except for the fact that I liked the ones at my gym. That is why I looked for a commercial bike. The ride is smooth and quiet. If you don't need a lot of bells and whistles, and just want a good sturdy bike that you can kick *** on, this is the one for you.

Kyra G.
United States United States

I decided to opt out of monitors and gadgets and just go for a basic bike. I taught spin classes for over a decade and always liked the chain bike, so included them in my research and ultimately landed on this. Wow, what a solid ride. This bike is not only sturdy, it allows us to adjust it to perfection (four way adjustable seat and handlebars)! The ride is super smooth and the resistance is fierce. YES to super challenging jogs and hills. I was a bit worried that the chain bike might be loud, but it’s not at all. Just the quiet whirring of movement that’s drowned out by my focus, music, and an online class if that’s your thing.

Sunny Health and Fitness Premium Chain Drive Commercial Indoor Cycling Trainer Exercise Bike Review
Alyson H.
United States United States
It's spin worthy!

My sister-in-law recommended this bike to me and I'm in love with it! It's quiet and definitely feels like a studio bike! My husband's also impressed with its sturdiness!

J B.
United States United States

I am impressed with the quality of this bike. My husband purchased us one a while back and the handle bars would be loose within minutes of tightening them. My new Asuna is gym quality.

United States United States
Love this bike!

I am so happy with my new spin bike. It literally took less than 20 minutes to put together.....super easy! I use to teach spin years ago, and this is a great solid bike! I would definitely recommend!!! Ride on.....

Jeffrey V.
United States United States
ASUNA 4100

I purchased the bike to replace another spinning bike that was shot. Was skeptical about buying one online without seeing or trying it out. I am a certified Spinning instructor and I love this bike. It is a quality heavy duty spinning bike that is better than most of the more expensive spinning bikes that I have used teaching At gyms teaching classes. Jeff !!