TST
The cheapest fat tire with dual suspension and 84 real reviews behind it.
4,2(84)Affiliate links: if you buy through them we earn a commission from Amazon at no extra cost to you. Learn more.
Six axes, the same rule for every bike. This is our judgment, not the manufacturer's.
| Range | 6/10 | |
|---|---|---|
| Push | 7/10 | |
| Comfort | 7/10 | |
| Sportiness | 6/10 | |
| Ease of use | 5/10 | |
| Value | 8/10 |
Pick a spot and see the area each bike reaches along real roads — not a circle on a map.
You can also click anywhere on the map.
Reachable area estimated over the road network. Real range varies with assist level, terrain, rider weight and wind.
The TST R7 is the kind of bike you buy on the spec sheet. For under $700 you get dual suspension, 20×4-inch tires, a removable 720 Wh battery and a motor rated 750 W nominal with a claimed 1,500 W peak. The step-through frame means no swinging a leg over, and there's a rear saddle with footpegs if you want to carry someone.
What sets it apart from the other cheap imports is that it has 84 reviews and a 4.2 average. That's not a huge sample, but next to bikes with five reviews all posted the same day, it's real people describing how it holds up.
Two things we don't like. First, the mechanical disc brakes — cable, not hydraulic. On an 87-pound bike rated for 450 pounds total that can run on a throttle, cables are not enough brake: they fade, they lose feel and they need adjusting often. Second, the 180-day warranty, half of what most competitors offer.
And there's one number simply missing: the listing states neither a top speed nor a class. In the US that matters, because class decides where you can legally ride: bike lanes and paths usually allow Class 1 and 2 but restrict Class 3. With 750 W and a throttle it would be Class 2 at minimum — but until the manufacturer says so, we won't assume it. If you plan to ride on public paths, ask before you buy.
Anything marked «—» is a figure the manufacturer doesn't publish. We don't fill those in by eye.
| Type of riding | Fat tire |
|---|---|
| Class (US law) | Not stated by the manufacturer |
| Wheel size | 20" |
| Tire width | 4" |
| Frame material | Aluminum, step-through frame |
| Frame size | One size |
| Motor position | Rear hub |
|---|---|
| Motor | Brushless rear hub |
| Nominal power | 750 W |
| Peak power | 1.500 W |
| Torque | — |
| Top speed | — |
| Throttle | Yes |
| Battery | 720 Wh |
|---|---|
| Claimed range | 60 miles |
| Charge time | 7 h |
| Removable battery | Yes |
| Gears | 7 |
|---|---|
| Drivetrain | 7-speed derailleur |
| Brakes | Mechanical disc |
| Suspension | Dual |
| Bike weight | 87,7 lb |
|---|---|
| Max total weight | 450 lb |
| Assembly required | Yes |
| Warranty | 6 months |
| Battery | 48V 15Ah (720 Wh) built into the frame and removable, water-resistant with an anti-theft lock |
|---|---|
| Range by mode | Up to 60 miles on pedal assist; up to 40 miles on throttle alone |
| Passenger seat | Comes with a rear saddle and footpegs; the maker says the rear seat can be swapped for a cargo rack |
| Lighting | High-output headlight and rear light with turn signal |
| Assembly | Ships 90% assembled, with video and manual |
| Manufacturer | Shenzhen Uni-chic Technology Co., Ltd |
| Torque | The manufacturer does not publish a torque figure |
| Top speed | The listing states neither a top speed nor an e-bike class |
A summary of the reviews published on Amazon.com as of 2026-08-21.
4.2 out of 5 from 84 reviews, the most credible sample of any bike we've covered. The praise is consistent: value for money, plenty of push, easy assembly with the maker's video, and fast delivery. Several buyers add that support actually fixed specific problems for them — an out-of-round wheel, a sticky throttle. But there's also a detailed one-star review from a buyer whose throttle was dead out of the box and who couldn't get anyone to answer: the phone lines went to voicemail with a full mailbox and the emails went unanswered. Another flags a practical detail: with the headlight on, the battery drains far faster than normal. One thing worth noting: several of these are bought for 13- and 14-year-olds, and many states set a minimum age for Class 2 and 3 e-bikes.
Reviews and prices change. Check before you decide.
See reviews and price on AmazonAdd two or more bikes to the comparison and you'll see their spec tables and charts side by side.
Amazon's #1 best-selling bicycle. 457 ratings, and one spec that can't be true.
A known brand, a UL-certified battery and $110 off.
A well-equipped commuter with 110 reviews — and a listing that can't keep its numbers straight.