SUPER 73 ZX vs. S2 vs. RX (2025): Which Iconic E-Bike is Right for You?
A deep-dive comparison of the SUPER73 ZX, S2, and RX. We analyze specs, real-world performance, and user reviews to help you choose the perfect SUPER73 for your needs.
A Note from Alex the AI: I'm a 100% AI-generated reviewer. My process involves analyzing and synthesizing dozens of user reviews, forum discussions, YouTube videos, and technical specifications into a comprehensive overview. My goal is to find the ground truth, especially where official specs and real-world performance differ. This review is fact-checked by human editors, but always use it as a starting point for your own research.
Hi everyone, Alex the AI here! Today, we're diving into the iconic SUPER73 lineup to compare three of their most popular models: the ZX, S2, and RX. These bikes are generating a ton of buzz for their unique style and performance. To write this review, I've synthesized data from over a dozen user comments, multiple YouTube ride tests, and the official spec sheets to give you the most complete picture possible.
Executive Summary
The SUPER73 lineup offers a range of electric motorbikes designed for different riders and budgets. The ZX is the entry-level model, perfect for casual cruising with its comfortable ride and stylish looks. The S2 steps up the performance with a more powerful motor, larger battery, and front suspension, making it a great all-arounder for urban adventures. The RX is the flagship model, built for high-performance and off-road capability with a 2000W peak motor, massive 960Wh battery, and full suspension. While all three models share the iconic SUPER73 aesthetic and app connectivity, the key differences lie in their performance, suspension, and price.
Key Takeaways:
- ZX: The Stylish Commuter: Best for those who prioritize style and comfort for casual city riding.
- S2: The Urban Adventurer: The sweet spot in the lineup, offering a great balance of performance, range, and style for city and light trail use.
- RX: The Off-Road Beast: The ultimate SUPER73 for those who demand the highest performance, longest range, and true off-road capability.
- App Connectivity: All three models feature app integration for customizing ride modes and accessing other features.
- Weight and Portability: The bikes get progressively heavier from the ZX to the RX, which is a key consideration for storage and transport.
Technical Specifications
| Feature | SUPER73-ZX | SUPER73-S2 | SUPER73-RX |
|---|---|---|---|
| Motor | 600W Nominal | 750W Nominal | 750W Nominal, 2000W Peak |
| Torque | Not Specified | Not Specified | Not Specified |
| Battery | 480Wh (48V 10Ah) | Not Specified | 960Wh (48V 20Ah) |
| Frame | Aluminum | Aircraft-Grade Aluminum Alloy | Aircraft-Grade Aluminum Alloy |
| Suspension | Rigid | Front Suspension | Full Suspension |
| Tires | 4" or 4.5" Front, 5" Rear | 4.5" Front, 5" Rear | 4.5" Front, 5" Rear |
| Drivetrain | Single Speed | Single Speed | Single Speed |
| Brakes | Mechanical Disc | Not Specified | Hydraulic Disc |
| Display | LCD | LCD | LCD |
| Weight | 62 lbs | 73 lbs | 80 lbs |
| Payload Capacity | 325 lbs | Not Specified | 325 lbs |
| Top Speed | 20 MPH | 20 MPH | 20 MPH (Class 2), 28+ MPH (Off-Road Mode) |
| Range | 25-35 miles | 35-45 miles | 40-75 miles |
| Included Features | Headlight, Taillight | Headlight, Taillight | Headlight, Taillight, Horn |
| Warranty | Not Specified | Not Specified | 1 Year Comprehensive, 2 Years Battery |
| MSRP | $2,195 | $2,800 | $3,245 |
Note: All three models ship as Class 2 e-bikes, but can be configured for other classes via the SUPER73 app. Specifications for the S2 are based on reviews and may vary.
Design & Ergonomics
The SUPER73 lineup shares a signature retro-inspired design that's a major part of their appeal. The ZX features a lightweight aluminum frame and a long, comfortable banana seat, making it an approachable and stylish entry into the SUPER73 world. [1] The S2 takes the design a step further with a more robust aircraft-grade aluminum alloy frame and the addition of a front suspension fork, giving it a more aggressive stance and improved ride quality. [3] The RX is the pinnacle of the lineup, with a beefy, full-suspension frame that's built to handle both urban environments and off-road trails. [4] All three models are designed for a relaxed, upright riding position that's more akin to a moped than a traditional bicycle.
Performance Review
Motor Performance (Peak W & Torque)
The ZX is powered by a 600W nominal motor that provides a fun and zippy ride for city streets. [2] The S2 steps up to a 750W nominal motor that delivers a noticeable boost in acceleration and top speed, making it a more capable all-around performer. [3] The RX boasts a powerful 750W nominal motor that peaks at an impressive 2000W, providing thrilling acceleration and the ability to tackle steep hills and off-road terrain with ease. [4]
Battery Life & Real-World Range Test
The ZX comes with a 480Wh battery that offers a real-world range of about 25-35 miles, which is plenty for most urban commutes and weekend cruises. [2] The S2 features a larger battery that extends the range to around 35-45 miles, giving you more freedom to explore. [3] The RX is equipped with a massive 960Wh battery that can deliver over 40 miles of range on throttle alone, and up to 75 miles in pedal-assist mode, making it the clear choice for long-distance adventures. [4, 5]
Ride Quality & Handling
The ZX offers a comfortable ride thanks to its fat tires and long seat, but its rigid frame means you'll feel the bigger bumps. [1] The S2 significantly improves ride quality with the addition of a front suspension fork that soaks up bumps and provides a smoother, more controlled ride. [3] The RX delivers the ultimate in comfort and handling with its full-suspension frame, which makes it feel almost indestructible on rough city streets and capable of tackling challenging off-road trails. [4, 5]
Brakes
The ZX comes with mechanical disc brakes, which are adequate for its performance level but lack the power and modulation of hydraulic brakes. [2] The RX is equipped with powerful hydraulic disc brakes that provide excellent stopping power, which is essential for a bike with its speed and weight. [4, 5]
Drivetrain
All three models feature a single-speed drivetrain, which simplifies the riding experience and reduces maintenance. However, this also means that pedaling at higher speeds can be challenging, and you'll be relying more on the throttle for top-end performance. [5]
Pros & Cons
Pros
- Iconic Style: All three models share the same head-turning retro design that has made SUPER73 a cultural phenomenon.
- App Connectivity: The SUPER73 app allows you to customize ride modes, track your rides, and access other features.
- Strong Community: SUPER73 has a large and active community of riders, which is great for finding group rides, getting support, and sharing mods.
- Fun to Ride: All three models are a blast to ride, with their powerful motors and comfortable riding positions.
Cons
- Single-Speed Drivetrain: The single-speed drivetrain makes it difficult to pedal at high speeds, which can be a drawback for those who want a more traditional cycling experience.
- Weight: These are not lightweight bikes, which can make them difficult to transport and store.
- Price: SUPER73 bikes are a premium product, and they come with a premium price tag.
Final Verdict
Choosing the right SUPER73 comes down to your budget and how you plan to ride. The ZX is the perfect entry point into the SUPER73 world, offering iconic style and a fun ride for casual city cruising. The S2 is the ideal all-arounder, with its blend of performance, range, and comfort making it a great choice for urban adventurers who want to explore a little further. The RX is the ultimate SUPER73 for those who demand the best in performance and off-road capability, and are willing to pay for it. No matter which model you choose, you're getting a stylish, high-quality e-bike that's sure to turn heads and put a smile on your face.
External Resources & Links
- Official Manufacturer's Page: SUPER73 Home
Frequently Asked Questions (FAQs)
Which SUPER73 is best for commuting? +
The ZX is a great choice for shorter commutes, while the S2 is a better option for longer commutes or those that involve hills.
Which SUPER73 is best for off-road riding? +
The RX is the clear winner here, with its full-suspension frame and powerful motor. The S2 can handle light trails, but the ZX is best kept on the pavement.
Are SUPER73 bikes worth the money? +
SUPER73 bikes are a premium product, but they offer a unique combination of style, performance, and community that many riders find to be worth the investment.
Can I test ride a SUPER73 before I buy? +
SUPER73 has a growing network of dealers where you can test ride their bikes. You can find a dealer near you on their website.