ASUNA 4100 Commercial Indoor Cycling Bike Review

​As its name suggests, the ASUNA 4100 Commercial Indoor Cycling Bike is a commercial-grade bike and it's therefore ideal for fitness buffs who don't mind spending a bit more to get a quality fitness equipment. To ensure it lives up to its name, ASUNA fitted this model with a solid build and ensured that it's heavy enough to provide smooth rides throughout its entire lifespan. What's more, the stationary bike can be adjusted to a rider's preference and it's versatile enough to meet the fitness needs of any individual.

So, if you're in the market for a cycling bike, the ASUNA 4100 could just be your dream indoor bike. But what does it have to offer in terms of features? How to other customers rate this model? Let's take a closer look at its best features...

Micro Tension Knob System

Varying the intensity of your workout according to your fitness level will not be a problem with the ASUNA 4100. In fact, this indoor bike can provide a challenging workout for anyone whether you're a highly active fitness enthusiast or a 60+ year old battling arthritis. This is made possible by the bike's wide range of resistance levels, which are operated by a micro tension knob system. This system allows users to manually switch up the intensity of their workouts by simply turning a tension knob. This feature is quite useful as it ensures that you'll be able to get effective workouts at all times even when you progress from one fitness level to another.

40-Pound Heavy Duty Flywheel

A heavy flywheel is a must-have feature in any indoor cycling bikes as it ensures a smooth ride while mimicking the feeling of riding a bicycle in the outdoors. At 40-pounds, the heavy-duty flywheel of the ASUNA 4100 cycling bike provides one of the smoothest riding experiences ever. When using this bike, you'll never experience sudden rough movements that can cause discomfort at the very least or joint/muscle injury at the worst.

ASUNA 4100 Commercial Indoor Cycling Bike Review - Offers a practical 40-pound flywheel for a smooth riding experience

Offers a practical 40-pound flywheel for a smooth riding experience

Adjustable Seat and Handlebar

Regardless of your height, the ASUNA 4100 will always provide you with a comfortable riding experience. This is thanks to the bike's fully adjustable handlebar and seat which can be raised, lowered, pushed forward, or pulled back to achieve the position that will provide you with the most comfortable experience. The adjustable feature of the bike offers 2 crucial benefits: It allows all users to enjoy a great riding experience and prevents muscle and joint injuries that can be triggered as a result of poor posture.

Click to read more...​

Heavy Duty Steel Frame

An unstable cycling bike not only provides uncomfortable rides but also puts riders at riskof injury whenever they get on the biker. The last thing you want is an indoor bike that keeps wobbling during use and the ASUNA 4100 ensures you won't ever have to face this problem thanks to its heavy-duty steel frame. This frame provides you with ample stability that enhances the bike's user experience while protecting you against injury at the same time.

ASUNA 4100 Review - The bike features a fully adjustable handlebar and seat for your riding comfort.

The bike features a fully adjustable handlebar and seat for your riding comfort.

ASUNA 4100 Commercial Indoor Cycling Bike Package Details and Accessories

  • 1 x ASUNA 4100 cycling bike
  • An assembly tool
  • User manual


The ASUNA 4100 indoor cycling bike measures 41.3 x 25.5 x 51.2 inches.


  • Fitted with a bottle holder
  • 285-pound maximum user weight
  • Easy to assemble and use
  • In-built transportation wheels make it easy to move the bike around
  • Operates quietly
  • The bike's seat can be adjusted over a seat to pedal distance range of 29.5 to 36 inches
  • Stable construction that protects users from injury
  • Features reversible cage/SPD pedals that not only hold your feet securely in place but also allows you the freedom of choosing to wear gym sneakers or clipping cycling shoes when exercising


  • The bike is a little more expensive as compared to other entry level models
  • Some users have found the bike's seat to be uncomfortable

Consumer Ratings

Amazon Customer Reviews: Click Here

Aside from the bike's hard seat and asking price, the ASUNA 4100 appears to be well-received by many past purchasers.

ASUNA 4100 Commercial Indoor Cycling Bike Price

Today's Price: Click Here


The ASUNA 4100 Commercial Indoor Cycling Bike can be summarized in a few words: High-performance, durable, versatile, convenient, and user-friendly. Since these are the main qualities riders look for in this exercise equipment, this commercial-grade bike offers you great value for a basic indoor cycling bike. So, whether you're a serious rider or someone simply looking to keep excess fat away, this cycling bike offers a great deal you simply cannot afford to miss.

Click here for a closer look.