The Assault Bike ProX has emerged as a significant contender in the high-intensity cardio equipment market, offering a full-body, low-impact workout that can be scaled to extreme intensity levels. Widely adopted within the CrossFit community and increasingly by home fitness enthusiasts, this fan bike distinguishes itself with a robust belt-driven system and a heavy-duty steel frame, positioning it as a versatile tool for building both cardiovascular endurance and muscular strength. This comprehensive review, drawing on extensive testing by a team of athletes, strength and conditioning coaches, and certified personal trainers, aims to provide an in-depth analysis of the Assault Bike ProX’s capabilities, performance, and value proposition in comparison to its market competitors.
Key Takeaways
The Assault Fitness AssaultBike ProX offers a durable, high-performance cardio solution suitable for a wide range of users, from elite athletes to fitness enthusiasts. Its belt-driven system provides a smooth and quiet operation, while the heavy-duty steel frame ensures longevity and stability. The bike’s comprehensive console, Bluetooth connectivity, and integrated app support enhance the training experience, though the price point places it in the premium segment of the market.
Assault Fitness AssaultBike ProX Cons
While the AssaultBike ProX garners significant praise, potential drawbacks include its premium price point, which may be prohibitive for some consumers. Additionally, while the included workouts offer a starting point, they may not satisfy users seeking the highly interactive and expansive program library found in some competing connected fitness platforms. The absence of a built-in wind guard, requiring a separate purchase, is another minor inconvenience for those training in cooler environments.
Assault Fitness AssaultBike ProX Rating
At Breaking Muscle, our product evaluation methodology is built upon rigorous testing protocols and a deep understanding of exercise physiology and equipment engineering. Our dedicated product testing team, comprising individuals with extensive experience in athletic training and fitness instruction, has subjected hundreds of machines to diverse workout regimens, ranging from gentle warm-ups to demanding high-intensity interval training (HIIT). Many of our staff members are also avid home gym owners, integrating these products into their daily routines.
Leveraging this accumulated expertise, we developed a proprietary scoring system to assess the AssaultBike ProX across various critical performance and design categories. This evaluation involved not only an independent assessment of the bike’s standalone features but also a comparative analysis against nearly 30 other exercise bikes currently available on the market.
| Factor | Rating (out of 5) |
|---|---|
| Price | 4 |
| Materials, build, construction | 5 |
| Delivery and assembly | 5 |
| Performance | 4 |
| Included workouts | 3 |
| Heart rate monitor | 4 |
| Display and stats tracking | 5 |
| Conveniences | 4 |
| Workout app and subscriptions | 4 |
| Bluetooth connectivity | 5 |
| Noise level | 4 |
| Portability | 4 |
| Warranty | 5 |
Assault Fitness AssaultBike ProX Overview
Hailing from the creators of the AssaultRunner, a highly regarded treadmill, the Assault Bike ProX is engineered with a formidable steel frame finished in a corrosion-resistant black powder coat, designed for enduring performance and longevity. This fan bike represents a pinnacle in its category, capable of delivering an intensely challenging workout suitable for athletes of all levels.
The bike’s construction is further enhanced by a belt-driven system, which contributes to a notably quiet and exceptionally smooth operational experience. Compared to chain-driven systems, this belt drive requires significantly less maintenance, a considerable advantage for users seeking to minimize upkeep and maximize training time.
Assault Fitness AssaultBike ProX In-Depth Review
Price
As of the review period, the Assault Bike ProX is priced at $899. For consumers seeking flexible payment options, a financing plan is available through Affirm, with monthly payments starting at approximately $82. This pricing positions the ProX above the AssaultBike Classic ($699) but below the Concept2 BikeErg ($1,100), placing it in the mid-to-high tier of fan bikes. A significant cost-saving factor is the inclusion of free shipping, a considerable benefit given the size and weight of the equipment. Without this, shipping costs for comparable air bikes can easily add an additional $100. Considering its financing options, shipping value, and overall feature set, the bike earns a rating of 4 out of 5 stars in the price category.
Materials, Build, and Construction Quality
Weighing 125 pounds and supporting a maximum user weight of 330 pounds, the Assault Bike ProX features a heavy-duty steel frame with a durable, corrosion-resistant black powder coating. This combination not only enhances longevity but also reduces the need for ongoing maintenance. The construction bears a resemblance to the Rogue Echo Bike, another robust fan bike known for its substantial build. However, the ProX is less bulky than the Echo Bike, making it a more suitable option for users with limited space. Its dimensions are 51.73 inches in length, 24.52 inches in width, and 52.51 inches in height, compared to the Echo Bike’s 55 x 29.5 x 52.25 inches.
The seat on the ProX is wide and well-padded, offering 11 height adjustments and six directional settings (forward/backward), mirroring the adjustability of its predecessor, the Assault Bike Pro. The rubberized handlebars ensure a secure grip and comfort during prolonged workouts. A notable feature is the inclusion of footpegs at the base of the handlebars, allowing users to isolate their upper body for targeted arm workouts, beneficial for injury rehabilitation or specific training goals. The exceptional build quality and robust materials warrant a 5 out of 5-star rating.
Delivery and Assembly
The delivery and assembly process for the AssaultBike ProX was exceptionally straightforward, earning it a perfect 5 out of 5 stars in this category. The unit arrived approximately 75% pre-assembled, requiring only the attachment of the LCD console, pedals, handlebars, seat post, and saddle. Assault Fitness thoughtfully includes all necessary tools for assembly, which can typically be completed within 35 to 45 minutes, making it accessible even for those with limited mechanical experience.
Performance
During our testing phase, the Assault Bike ProX demonstrated a noticeably smoother and quieter operation compared to other air bikes, such as the Titan Fan Bike or the AssaultBike Classic. This enhanced performance is primarily attributed to its belt-driven system. While requiring less maintenance than chain-driven systems, the belt drive demands consistent pedaling to maintain momentum. The steel fan wheel generates resistance directly proportional to the user’s effort; the harder you pedal, the greater the resistance.
A key characteristic of this resistance system is that the fan wheel stops spinning almost immediately when pedaling ceases, necessitating a stronger initial effort to re-engage and build momentum. This dynamic can be particularly challenging for users not accustomed to high-intensity workouts, as it demands continuous engagement to maintain resistance. Consequently, the Assault Bike ProX receives a 4 out of 5-star rating for performance, reflecting its powerful yet demanding operational nature.
Included Workouts
The Assault Bike ProX’s LCD console features seven pre-programmed training sessions and a competitive mode. Through the accompanying Assault Fitness App, users gain access to instructor-led programs and the ability to create custom workouts. While these integrated programs offer a valuable starting point for users new to fan bike training, they are not as comprehensive as the interactive workout libraries found on more technologically advanced connected fitness platforms like Peloton. Nevertheless, the availability of these features adds value, particularly for individuals seeking structured guidance. The rating for included workouts is 3 out of 5 stars.
Heart Rate Monitoring
The Assault Bike ProX significantly improves upon the heart rate monitoring capabilities of its predecessor. While the AssaultBike Classic was limited to compatibility with the Polar T34 chest strap, the ProX supports a broader range of heart rate monitors, including those from brands like Garmin, via its Bluetooth connectivity. Users must purchase a compatible monitor separately, which is a standard practice across most exercise bikes. This flexibility and expanded compatibility contribute to a rating of 4 out of 5 stars for heart rate monitoring.
Display and Stat Tracking
The Assault Bike ProX is equipped with a 5-inch by 8-inch LCD monitor, a common size for fan bikes, providing clear and comprehensive data. Powered by four included AA batteries, the console effectively tracks key metrics such as calories burned, distance, heart rate, speed, watts (power output), and RPM (revolutions per minute). Crucially, it also connects to the Assault Fitness App, offering enhanced data integration.
Our testing team particularly appreciated the inclusion of watt output tracking, a critical metric for quantifying workout intensity and energy expenditure. This feature distinguishes the ProX from some competitors, such as the Rogue Echo Bike, whose monitor does not display watts or RPM. This superior data reporting capability earns the Assault Bike ProX a perfect 5 out of 5 stars for its display and stat tracking.
Conveniences
The Assault Bike ProX excels in user conveniences. A significant advantage is its lack of reliance on an electrical outlet, allowing for placement flexibility indoors or outdoors, and eliminating potential tripping hazards in commercial gym settings. Other thoughtful additions include an integrated device holder for tablets or smartphones and a water bottle holder, ensuring essential items are readily accessible during workouts. While some fan bikes, like the Titan Fan Bike, offer similar amenities, others, such as the Rogue Echo Bike, require these to be purchased separately. The inclusion of these often-overlooked features enhances the overall user experience and contributes to a 4 out of 5-star rating. The only noted deficiency is the absence of a wind guard, which, while available for an additional $39, would have been a welcome standard inclusion for users training in cooler environments.
Workout Apps and Subscription Options
The Assault Bike ProX integrates seamlessly with the Assault Fitness App, a feature highly praised by our product testers. This app, available for free download on the App Store and Google Play, offers a diverse library of instructor-led workouts and virtual competition options against other users. Many of these workouts are designed to incorporate other fitness equipment, such as dumbbells and kettlebells, promoting more holistic training programs.
Despite its strengths, the app received a 4 out of 5-star rating. As of the review’s publication, the app was not fully compatible with the latest version of Android, potentially limiting its use for some Android users.
Bluetooth Connectivity
The Assault Bike ProX’s inclusion of Bluetooth connectivity is a notable advancement, particularly when considering its predecessor, the AssaultBike Classic, which lacked this feature. While Bluetooth is becoming increasingly standard on many cardio machines, its presence on the ProX enhances its versatility, allowing for seamless integration with heart rate monitors and fitness apps. This feature earns it a 5 out of 5-star rating.
Noise Level
The belt-driven system of the Assault Bike ProX contributes to a significantly quieter operation compared to fan bikes with chain-driven mechanisms, such as the Schwinn Airdyne. This reduced noise output is a considerable benefit for home gym users, especially those who train during early morning or late-night hours when noise disruption is a concern. While no fan bike can be entirely silent due to the air displacement from the flywheel, the ProX offers a considerably more subdued auditory experience, meriting a 4 out of 5-star rating for noise level.
Portability
The Assault Bike ProX is equipped with two small transport wheels at its front, facilitating movement by allowing users to tilt the bike and roll it across the floor. However, its substantial weight of 125 pounds can present a challenge for some individuals when relocating it. While the wheels offer a degree of portability, the overall ease of movement is dependent on the user’s strength and the floor surface. This balance of features leads to a portability rating of 4 out of 5 stars.
Warranty
Assault Fitness provides a robust warranty package for the Assault Bike ProX, comprising a three-year warranty on non-wear parts and an impressive seven-year warranty on the frame. It’s important to note that the three-year warranty excludes parts subject to normal wear and tear, such as the seat, pedals, and grip materials, a common exclusion in the industry. Nevertheless, the extended duration of both warranties surpasses those offered by competitors like Rogue (two years on the Echo Bike) and Titan (one year on their fan bike). This comprehensive warranty coverage contributes to a 5 out of 5-star rating.
Assault Fitness AssaultBike ProX Specs
Overall Dimensions
The Assault Bike ProX measures 51.73 inches in length, 24.52 inches in width, and 52.51 inches in height. These dimensions are marginally larger than the classic AssaultBike, suggesting a need for careful space measurement when deciding between the two models.
Resistance
As a fan bike, the ProX generates resistance through air displacement. The fan wheel creates resistance that increases with pedaling speed and intensity. The belt-driven system ensures that resistance is directly applied only when the user is actively pedaling or moving the handlebars. Unlike some systems that maintain a baseline resistance, the ProX requires continuous effort to maintain momentum and resistance, making it a highly effective tool for high-intensity training.
Weight Capacity
The Assault Bike ProX has a maximum user weight capacity of 330 pounds, exceeding the 300-pound limit of the Classic model and approaching the 350-pound capacity of the Elite model.
Seat and Handlebar Adjustments
The seat on the Assault Bike ProX offers 11 height adjustments and six front-to-back settings, providing a high degree of customization to accommodate a wide range of user body types. While these adjustments are generally standard for fan bikes, they offer more versatility than the five front-to-back seat adjustments found on the Rogue Echo Bike.
Electrical Requirements
A significant convenience of the Assault Bike ProX is its independence from an electrical outlet. This allows for unparalleled placement flexibility, whether indoors or outdoors. The console, however, requires four AA batteries for operation, which are included with the purchase.
Assault Fitness AssaultBike ProX vs. Echo Bike
A comparative analysis between the Assault Bike ProX and the Rogue Echo Bike reveals several key differences and similarities.
| Assault Fitness AssaultBike Pro X | Rogue Echo Bike V3.0 | |
|---|---|---|
| Length | 51.73 inches | 55 inches |
| Width | 24.52 inches | 29.5 inches |
| Height | 52.51 inches | 52.25 inches |
| Weight | 125 pounds | 123 pounds |
| Materials | Black powder-coated steel | Steel (various gauges) |
| Max User Weight | 330 pounds | 330 pounds |
| Drive System | Belt-driven | Belt-driven |
| Power Requirement | None (battery for console) | None (battery for console) |
| Portability | Transport wheels | Transport wheels |
| Monitor Metrics | Watts, RPM, etc. | Lacks Watts/RPM |
Despite the Rogue Echo Bike’s slightly more substantial dimensions and construction materials, both bikes share the same 330-pound weight capacity and operate without external power. Their portability is also comparable, thanks to integrated transport wheels. Both utilize belt-driven mechanics for a smooth and quiet ride. However, the Assault Bike ProX distinguishes itself with a more comprehensive console that displays critical metrics like watts and RPM, a feature that can be a deciding factor for data-driven athletes.
Assault Fitness AssaultBike ProX Customer Reviews
Customer feedback for the Assault Bike ProX on the Assault Fitness website indicates a high level of satisfaction, with an average rating of 4.6 out of 5 stars. Many users commend its easy setup, low maintenance requirements, and its status as a favored piece of equipment in their home gyms. The bike’s sturdiness and ability to withstand rigorous workouts are frequently highlighted.
However, a small number of reviews mention isolated issues, such as a left peg becoming loose during use. Another user reported that their ProX was unexpectedly noisy and less stable than anticipated. These complaints, while noted, appear to be in the minority relative to the overwhelmingly positive feedback.
Final Verdict: Is the Assault Fitness AssaultBike ProX Worth It?
Following extensive research and hands-on testing, the Assault Fitness AssaultBike ProX emerges as a highly recommendable piece of cardio equipment. Its heavy-duty steel frame, finished with a durable black powder coat, is engineered to withstand the most demanding training sessions. This makes it an ideal choice for individuals seeking a high-intensity, full-body workout machine to enhance both cardiovascular endurance and muscular strength.
The belt-driven system contributes to a smoother and quieter operational experience, a significant advantage for home fitness environments. While the resistance system demands consistent effort, the Assault Bike ProX offers a compelling value proposition for a broad spectrum of users, from dedicated CrossFit athletes to general fitness enthusiasts looking to elevate their training.
FAQs
Is the AssaultBike a good workout?
Yes, the Assault Bike provides an exceptional workout. It combines air resistance with a belt-driven system to deliver a challenging cardio and muscular endurance session. The design allows for a full-body workout using both pedals and handlebars, or targeted upper-body training by focusing solely on the handlebars.
Is the AssaultBike Pro X belt driven?
Yes, the Assault Bike Pro X features a belt-driven system. This system means the bike’s resistance and operation are directly tied to the user’s input via the pedals and handlebars. The belt drive contributes to a smoother and quieter workout experience.
Is the AssaultBike good for fat loss?
While the AssaultBike itself is not a magic bullet for fat loss, it is an extremely effective tool for calorie expenditure. When combined with a calorie-controlled diet, the intense workouts it facilitates can significantly contribute to fat loss goals by creating a substantial calorie deficit and improving metabolic health.
Is the AssaultBike good for muscle building?
The AssaultBike Pro X engages multiple muscle groups, providing a full-body stimulus that can contribute to some muscle toning and endurance. However, for significant muscle hypertrophy (building mass), traditional resistance training with weights like dumbbells or barbells, coupled with a diet that supports muscle growth, remains the most effective approach.