Super73 ZX Core vs ZX SE: Specs, Differences and Which One to Buy
The Super73 ZX comes in two versions, the ZX Core and the ZX SE. They share a frame and a look, but the SE adds a bigger battery, adjustable front suspension, hydraulic brakes and different tires. Radical eBikes is an authorized Super73 dealer. We ship nationwide. Contact us with your ZIP code and the model you want, and we will tell you the shipping details.
ZX Core vs ZX SE at a glance
| ZX Core | ZX SE | |
|---|---|---|
| Motor (nominal) | 500 W | 500 W |
| Battery | 480 Wh (48V, 10Ah) | 720 Wh (48V, 15Ah) |
| Listed range | 25 to 35 miles | 35 to 45 miles |
| Top speed | 20 mph | 20 mph |
| Weight | 62 lb | 64 lb |
| Brakes | Tektro 2-piston, mechanical | Tektro 2-piston, hydraulic |
| Front suspension | None (rigid) | Adjustable |
| Tires | VEE LZRD, 4.5 in front and 5 in rear | Maxxis Supersucker, 4.5 in front and 5 in rear |
| Rider weight limit | 325 lb | 325 lb |
| Super73 list price | $2,395 | $2,995 |
These figures are from Super73's own product pages. Super73 changes specs and prices often, and our price may differ, so check the current figures on our product page before you order. Listed range assumes Class 2 throttle-only riding.
What the SE adds
- More battery: 720 Wh against 480 Wh, for the longer listed range.
- Better stopping: hydraulic brakes against mechanical brakes. Hydraulic brakes usually need less lever effort.
- Suspension: the Core is rigid. The SE has an adjustable front fork.
- Tires: Maxxis Supersucker tires on the SE.
- Weight: only about 2 lb more than the Core.
Which one should you buy?
- Choose the ZX Core for short city rides, commuting and budget. It is the lighter, simpler, lower-cost option.
- Choose the ZX SE if you ride longer, ride rougher paths, or want the stronger brakes and a front fork.
- Both are listed for riders 16 and older, from about 5'1" up, and are sold in Class 2 mode.
Classes and where you can ride
Nevada defines Class 1, 2 and 3 e-bikes with a 750 watt limit (NRS 484B.017). Check local rules for the parks and trails where you plan to ride, since some restrict throttle bikes. A Class 2 bike has a throttle and assists up to 20 mph. Read our Class 1, 2 and 3 guide for the rules.
Compared with the Juiced Scrambler
If you are deciding between moto-style e-bikes, read our Juiced Scrambler vs Super73 ZX comparison.
Caring for your Super73 battery in Las Vegas heat
- Do not leave the battery or bike in a hot car or on a hot patio in summer. Heat shortens lithium battery life.
- Let the battery cool down after a hard ride before you plug it in.
- Use the charger that came with your bike, and charge on a hard, non-flammable surface where you can see it.
- For long storage, leave the battery partly charged rather than full or empty, and keep it somewhere cool and dry.
- If the battery is swollen, smells odd or gets very hot, stop using it and contact the shop.
When your Super73 arrives
- Look the box and bike over before you sign, and take photos if anything is damaged.
- Ask us before delivery how the bike ships and what assembly or setup is needed.
- Check the tires, brakes, bolts and wheels before the first ride.
- Charge the battery fully using the supplied charger before you ride.
- Contact us if anything looks wrong. Do not ride a bike you are unsure about.
Questions to ask any dealer before you buy
- Are you an authorized dealer for this brand? (We are, for the brands we carry.)
- Who services the bike after the sale?
- What does the warranty cover and who handles claims?
- What is the repair price for common jobs like flats and brake pads?
- How is the bike shipped, and how is damage handled?
Buying from Radical eBikes
Radical eBikes is an authorized dealer. We ship nationwide. Contact us with your ZIP code and the model you want, and we will tell you the shipping details. Financing is available on bikes through Synchrony, Affirm, Klarna, ShopPay and AfterPay. See the Super73 collection for current stock.
Service after the sale
| Service | Price |
|---|---|
| E-bike flat repair | $50, tube and labor included |
| BMX flat repair | $50 ($40 with the Google offer through Dec 31, 2026), tube and labor included |
| E-moto flat repair | $75, tube and labor included |
| Diagnostics | Starting at $75 (higher for brands we don't carry); the fee goes toward repair labor |
| Brake bleed | Starting at $50 per wheel |
| Brake pad replacement | $50 per wheel, pads included |
| Chain repair | $25 |
See our e-bike repair, diagnostics and brake service pages. Small jobs like flats and brake pads can often be done the same day, though that is not guaranteed.
FAQ
What is the difference between the ZX Core and ZX SE?
The SE has a 720 Wh battery, hydraulic brakes, an adjustable front fork and Maxxis tires. The Core has a 480 Wh battery, mechanical brakes and no suspension.
How fast is the Super73 ZX?
Super73 lists 20 mph, in Class 2 mode.
Do you ship Super73 bikes?
Yes, nationwide.
Can you repair a Super73?
Yes. See our e-bike repair page.
Is the ZX good for tall riders?
Super73 lists riders from about 5'1" up to 6'8" for the Core. Try one for fit if you can.