QNUT Victor 4.0

Amazon sells this bike as a "26-inch commuter e-bike" with no model name in the title. QNUT's own store, qnutbike.com, sells the same bike as the Victor 4.0: the 36 V 7.8 Ah battery, the black frame with red graphics and the single-chainring seven-speed drivetrain all match, and QNUT's studio render of the black Victor 4.0 is the same bike as the Amazon listing photo. QNUT files it as an electric mountain bike, and so does Amazon's chart: it was #14 in Amazon's Electric Mountain Bikes on October 28, 2026. The listing title calls it a commuter. BikeRide's review summary says the Victor line is not suited to mountain biking despite the marketing, so we review it as what the specification supports: a 26-inch bike for paved roads, bike paths and gravel.

The Victor comes in three builds, and QNUT's October 2026 comparison of them is useful. The Victor 2.0 PRO has an aluminum frame, fenders, an adjustable stem, a 36 V 10.4 Ah battery and 3x7 gearing. The Victor 3.0 has a steel frame, the same 10.4 Ah battery and 3x7 gearing. The Victor 4.0, this one, has a steel frame, the smaller 7.8 Ah battery and 1x7 gearing, and is the cheapest of the three. QNUT says all three share a 350 W motor and a 20 mph top speed. If you see a Victor listing with a 10.4 Ah battery for a little more, that is the 3.0 or 2.0 PRO, and it is the better choice if range matters.

QNUT's own store charged noticeably more for the Victor 4.0 than this Amazon listing when we checked in late October 2026, so Amazon is the cheaper place to buy it.

The Amazon title and first bullet advertise a "Peak 1000W" brushless motor. QNUT's product page and its Victor comparison article list the motor as 350 W, with no word on whether that is rated or peak. The two are not necessarily in conflict: a peak figure is the brief maximum a motor draws when accelerating, and it is always higher than the continuous rating. But nobody states the rated figure in so many words, and that is the number the law uses.

Our arithmetic favours the smaller number as the everyday one. Drawing 1,000 W from a 36 V battery takes about 28 amps (1,000 / 36 = 27.8 A). For a 7.8 Ah pack that is a 3.6C discharge (27.8 / 7.8), a hard load for a battery this small. A 350 W motor at 36 V draws under 10 A, a far lighter 1.2C load. A 1000 W burst may be possible for a moment, but expect the everyday behaviour of a 350 W-class hub motor: fine on flat ground and gentle hills, slower on steep ones. BikeRide's summary includes one tester climbing a 10% grade on the throttle alone.

The same summary adds three behaviours worth knowing before you buy. The throttle only works once the bike is already moving. Both the throttle and the pedal assist engage after a short delay, about one second for the throttle and 1.5 pedal revolutions for assist. And the five assist levels give the same power with different speed cut-offs, rather than progressively more push.

On speed it has the Class 2 shape. The listing and QNUT's site both state a 20 mph top speed, and the bike has a throttle. Class 2 allows a throttle up to 20 mph, and most states treat a Class 2 e-bike like a bicycle, including the states that ban Class 3 outright. The open question is the motor rating. The federal definition of a low-speed electric bicycle in 15 U.S.C. § 2085 requires a motor of less than 750 W, and state class laws follow it; both are written around the motor's rated, continuous output. The Amazon listing gives only a 1000 W peak figure, and QNUT's site gives 350 W without labelling it. If 350 W is the rating, as the number suggests, the bike is comfortably inside the limit. Neither source says so in those words, so we do not assign a class, and you have no rated figure on paper to point to if anyone asks.

In practice, a 20 mph bike of this size is the kind most states treat as a bicycle. A few states add registration or other paperwork for any e-bike, and path and sidewalk rules vary by city, so check your state. Our Class 1, 2 and 3 explainer covers what each class allows.

The battery is 36 V x 7.8 Ah = 281 Wh. The listing prints 285 Wh, which does not match its own voltage and capacity. It claims up to 40 miles with pedal assist and up to 20 miles on the throttle. A 26-inch e-bike with a rider aboard typically uses 15-30 Wh per mile, depending on assist level, hills, wind and rider weight:

• 281 Wh / 30 Wh per mile = 9.4 miles (throttle only, hills, heavy rider)
• 281 Wh / 18 Wh per mile = 15.6 miles (mixed pedal assist, our planning figure)
• 281 Wh / 15 Wh per mile = 18.7 miles (light rider, low assist, flat ground)
• 281 Wh / 40 miles = 7.0 Wh per mile, what the 40-mile claim requires
• 281 Wh / 20 miles = 14 Wh per mile on throttle alone, what the 20-mile throttle claim requires

Seven watt-hours per mile is only reachable at the lowest assist level with the rider doing most of the work, and 14 Wh per mile on throttle alone is optimistic for a 26-inch bike at 20 mph. There is an outside check. BikeRide's summary reports a tester getting 22.2 miles from the larger 10.4 Ah (374 Wh) battery on the Victor 3.0 or 2.0 PRO. That is about 16.9 Wh per mile, and at the same rate the 4.0's 281 Wh gives 16-17 miles. Plan on about 15 miles, which covers a commute of up to 6-7 miles each way with some margin. Our range guide explains what moves the number.

The battery is removable, so you can carry it inside to charge, and QNUT's FAQ says its battery management system includes over-current protection and an automatic sleep mode. For charging habits that cut fire risk indoors, see our battery fire safety guide.

The Amazon title ends "UL 2849", and the second bullet calls the bike "UL 2849 certified for added safety" in the same sentence as the removable battery. UL 2849 is the standard for an e-bike's complete electrical system: battery, charger, motor and controller tested together. The battery-only standard, UL 2271, is not mentioned. The listing does not name a testing laboratory or give a certificate number, and QNUT's own Victor 4.0 page does not mention UL certification at all.

That matters more than it sounds. New York City's Local Law 39 of 2023 bans the sale, lease or rental of e-bikes not certified to UL 2849, and more apartment buildings ask to see a certificate before they allow an e-bike indoors. If either applies to you, ask QNUT for the certificate and the laboratory's name before buying, then look the certificate up in that laboratory's public directory. Two bikes we review name the laboratory on their own listings: the Funhang City Cruiser 26 and the sixblues EB3S, both certified to UL 2849 and UL 2271 by SGS.

We found no measured review of the Victor 4.0 from an established e-bike outlet. The closest is BikeRide's summary of the Victor line, published July 28, 2026, which pools owner comments with video reviews from channels including Trail Tested, E-bikeguy and Calthecool. It covers all three Victor builds together, so not every point is specific to the 4.0.

On the positive side, reviewers in that summary describe the handling as nimble, the display as bright and easy to read, assembly as easy, and the power delivery as smoother than the price suggests. On the negative side, BikeRide reports owners describing the suspension fork as rough (one says it leaked), the tires as puncture-prone despite the "puncture-resistant" wording on the listing, a cluttered cockpit, customer service that can be hard to reach and, more seriously, batteries or motors failing shortly after purchase. Reviewers also felt the frame suits riders under about 5 ft 8 in best.

None of this is unusual at this price, and none of it is something we have seen for ourselves. It is still the reason to read QNUT's warranty terms before you order.

QNUT's warranty policy is better than the listing's "12-month warranty" line suggests. It covers the frame and fork against manufacturing defects for the lifetime of the original owner, and the battery, motor, controller and display for one year from delivery, with other original parts also at one year. Two conditions matter. You must register the bike within 30 days of delivery, because the warranty period starts at registration. And QNUT says it will not replace anything without first seeing photos or video of the fault. Shipping for replacement parts can fall on the owner, so keep the box and record a short video of any problem.

The rest of the specification, from the listing unless noted: a steel frame (QNUT's comparison article), 26-inch tires described as puncture-resistant, a front suspension fork, front and rear mechanical disc brakes, a seven-speed derailleur on a single chainring, a backlit LCD showing speed, battery level and riding data, IP54 water resistance (splashes and rain, not a hose), a 308 lb (140 kg) maximum rider weight, and delivery 90% pre-assembled with tools. QNUT's FAQ adds a level 0 setting with no motor assist, brake-lever motor cutoffs, thermal protection for the motor and error codes on the display. Neither source states the bike's weight, and no fenders or rack are listed for the 4.0 (the dearer 2.0 PRO has fenders).

Buy it if your budget stops under $300, your rides are short and mostly flat (a few miles each way), and you want a full-size 26-inch bike with gears and a battery you can take indoors. The stated 308 lb rider limit and the lifetime frame warranty count in its favour.

Skip it if you need more than about 15 miles a charge, if you need a documented UL certificate for your building or for New York City, or if you are tall: reviewers suggest the frame fits riders under about 5 ft 8 in best. For range, the sixblues EB3S at $309.99 (as of Oct 30, 8:11 AM EDT, subject to change) carries a 540 Wh battery, nearly twice this one, and names its UL laboratory. For the cleanest legal paperwork, the Funhang City Cruiser 26 at $369.99 (as of Oct 30, 8:10 AM EDT, subject to change) states a 500 W rated motor and both UL standards. The AYOLNY 26-inch at $299.99 (as of Oct 30, 8:10 AM EDT, subject to change) is another popular 26-inch option with a 374 Wh battery. For more choices, see our best e-bikes under $300 and best commuter e-bikes.