28 mph is the fastest a street-legal e-bike goes in the United States, and only as a Class 3 bike: pedal assist up to 28 mph, with any throttle stopping at 20 mph, on a motor rated at 750 W or less (Oregon alone allows 1,000 W). Every bike in this group is rated at 750 W and declared at 28 mph, and the peak figures they advertise, 1200 W to 1500 W, are short bursts the statutes do not measure. Class 3 also needs any throttle to stop at 20 mph: the Cityscape and the Ranger state that limit, the EB5 MAX review describes it, and the Hunter and Roamer ST reviews do not confirm it, so their sections say what to check. Two cautions apply to all five. Class 3 is not recognized in seven jurisdictions: DC, Kentucky, Massachusetts, Montana, North Carolina, Pennsylvania and South Carolina, though North Carolina becomes a three-class state on 1 December 2026. And many states keep Class 3 off shared-use paths and add a helmet rule and a minimum age of 16. Check yours on our Class 3 laws by state page. New Jersey requires a license and registration for every e-bike, and Hawaii requires registration.
6. Kingbull Hunter 2.0S: best equipped at 28 mph for about $1,000
The Kingbull Hunter 2.0S at $999 (as of Oct 4, 2:10 PM EDT, subject to change) is the best-equipped bike in this group: a 750 W rated motor (1300 W peak, 85 Nm), two-piston hydraulic disc brakes on 180 mm rotors, a 48 V x 18 Ah (864 Wh) battery and a 400 lb stated payload. It is Class 3 at 28 mph per its Amazon title, on CST 26 x 4.0 knobby tires with a 100 mm spring fork, and Kingbull rates it IPX6 with a 150 lb limit on the rear rack. Kingbull's warranty runs two years on the motor, battery and frame, handled by a service team in California, and Amazon shows APEFOX as the seller of record.
Holding 28 mph drains a battery fastest, which is where the 864 Wh pack earns the top spot. Kingbull claims 80 miles, which needs under 11 Wh per mile; our planning estimate, not a measurement, is 33 to 43 miles of mixed riding and about 26 miles held at 28 mph. Its review does not mention a throttle; if yours has one, confirm it stops at 20 mph, because a throttle that reaches 28 mph fits no class. The other trades: 77 lb, a cadence sensor rather than a torque sensor, and no UL 2849 claim on the Amazon listing or on Kingbull's spec page, so ask before buying if your building requires one. The price sits on the $1,000 line. Read the full Kingbull Hunter 2.0S review.
7. Jasion EB5 MAX: cheapest 28 mph bike with hydraulic brakes
The Jasion EB5 MAX at $549 (as of Oct 4, 2:10 PM EDT, subject to change) is the cheapest bike we review that pairs a 28 mph Class 3 speed with hydraulic disc brakes and a stated 750 W rated motor (1500 W peak, 85 Nm). It runs a 48 V x 15 Ah (720 Wh) battery on 26 x 4 fat tires, with 180 mm rotors front and rear, cruise control, fenders, a rear rack and lights in the box, and it weighs 78 lb with a 330 lb payload. The title says "28+MPH", which on its own reads as a floor; its review treats it as the Class 3 ceiling, with no throttle assistance above 20 mph, so confirm both limits with the seller before relying on Class 3 status.
Plan on 30 to 40 miles of mixed riding and about 22 held at 28 mph, against Jasion's 65-mile claim. It ranks below the Kingbull on battery and warranty: Jasion covers the motor and battery for one year and the frame for six months. Jasion advertises UL 2849 testing, but the certifier and certificate number are not always named, and the model has a short Amazon track record. Read the full Jasion EB5 MAX review.
8. Heybike Ranger: best folding bike at 28 mph
The Heybike Ranger at $799.99 (as of Oct 4, 2:10 PM EDT, subject to change) is the only folding bike in this group, and it reaches 28 mph in its Class 3 setting on a 750 W rated motor (1400 W peak, 80 Nm) with hydraulic disc brakes on 180 mm rotors. It ships as a Class 2 (20 mph throttle and pedal assist); Class 3 (pedal assist to 28 mph, throttle to 20) and Class 1 are one-tap settings in the LCD, which matters in the seven jurisdictions that do not recognize Class 3. The Amazon page lists UL 2849 for the system and UL 2271 for the battery, and it is #12 in Amazon's Electric Folding Bikes (October 2026).
The frame is a step-through on 20 x 4 Kenda fat tires that folds to 40 x 20 x 31 inches, with a 400 lb total payload and a 150 lb rear rack. The trades are battery and weight: 600 Wh (48 V x 12.5 Ah) is good for 25 to 35 miles at mid assist by our estimate, and 70 lb is heavy for a folder. It uses a cadence sensor. Read the full Heybike Ranger review.
9. Jasion Roamer ST: step-through with hydraulic brakes
The Jasion Roamer ST at $719.99 (as of Oct 4, 2:10 PM EDT, subject to change) is a 28 mph Class 3 step-through whose Amazon title says "UL2849 Certified", built around a 750 W rated motor (1200 W peak, 75 Nm) and hydraulic disc brakes on 180 mm rotors. A front suspension fork, a 7-speed Shimano drivetrain, lights, a rack, fenders and cruise control are standard, and it weighs 60 lb with a 330 lb payload.
It ranks below the Ranger on battery: 36 V x 14.6 Ah (528 Wh), which our planning estimate puts at 28 to 38 miles mixed and about 22 held at 28 mph, against Jasion's 40 to 62 mile claim. Its review says only that a Class 3 throttle is typically limited to 20 mph, so confirm this one stops there. Jasion covers the motor and battery for one year and the frame for six months, and it uses a cadence sensor. The listing we link is a relisting, and the old listing's ratings may not have carried over, so read the current reviews. Read the full Jasion Roamer ST review.
10. Heybike Cityscape 2.0: the street-legal pick under $500 (October 2026)
The Heybike Cityscape 2.0 at $479 (as of Oct 4, 2:10 PM EDT, subject to change) was the only bike we review that sat under $500 at our October 2026 check and combines a 28 mph Class 3 speed with a stated 750 W rated motor (1200 W peak) and a throttle capped at 20 mph. Like the Ranger it documents UL 2849 for the bike system and UL 2271 for the battery, and a display setting drops it to Class 2 or Class 1 for paths that bar Class 3. It is #11 in Amazon's Electric City Bikes (October 2026).
It ranks last of the five because it is the least equipped for 28 mph: mechanical disc brakes (180 mm rotors) where the other four have hydraulics, and the smallest battery, 36 V x 13 Ah (468 Wh), which works out at roughly 23 to 31 miles of mixed riding against a 50-mile claim. It is a 26-inch step-through with a 60 mm fork and a 7-speed Shimano Tourney drivetrain, and it weighs 62 lb with a 330 lb payload. Read the full Heybike Cityscape 2.0 review.