TST City Commuter

The 30-second verdict

Being Amazon's #1 best-seller in Electric Bicycles (checked the day we added it — rank moves hourly) doesn't make a bike good, but at this price it makes it accountable: thousands of units in the field surface defects fast, and Amazon's 30-day return window applies. On paper you get more honest electrics than most sub-$700 rivals — TST states the 750W rated figure alongside the 1500W peak, where many budget listings quote peak only. Pair that with a 48V 15Ah (720Wh) removable pack and dual suspension and the value case is real. The silence on weight, torque, and certification is the trade.

Motor and legality

A 750W rated hub motor sits exactly on the federal ceiling most states copied — all but one US state cap e-bikes at 750W (Oregon alone allows 1,000W). That matters here: this bike's rated figure is street-legal-shaped, and the 1500W number in the title is peak output under load, which statutes don't measure. The listing never states a top speed; bikes in this tier ship with a 20 mph limiter (Class 2 behaviour — throttle plus pedal assist). Check the display's settings menu on arrival and confirm the cap before riding somewhere Class 3 is restricted; our street-legal guide maps where each class can go.

Battery and the 60-mile claim

720Wh is genuinely big for $600 — the Heybike Cityscape 2.0 carries 468Wh at a higher price. The seller's "up to 60 miles" assumes lowest assist, flat ground, and a light rider; fat tires at 4" wide cost meaningful rolling resistance, so treat 30-40 miles of mixed PAS riding as the planning number. The pack is removable and charges in a claimed 6-7 hours. No UL 2849 or UL 2271 certification is mentioned anywhere on the listing — if you charge indoors in NYC (Local Law 39) or buy in California after SB 1271's January 2026 sale rules, that absence is disqualifying; look at the Vivi C26UL or Hoverfly OUREA instead, both certified and cheaper.

Build: what dual suspension buys you

Front and rear suspension at this price usually means basic spring units, not adjustable dampers — fine for potholes and kerbs, not for actual trails. Combined with 4"-wide fat tires the ride will be plush and heavy: expect the unlisted weight to land in the 60-70 lb bracket typical of the format, which is worth knowing if the bike must climb apartment stairs. Braking is unspecified in the bullets; at this tier that almost always means mechanical discs — adequate at 20 mph, but budget for pad checks.

Who should buy it — and who should not

Buy the TST if you want the most battery and suspension per dollar on Amazon right now, your commute has rough pavement, and certification isn't a gating requirement. Skip it if you need documented UL certification, a published weight before purchase, or a dealer network — the Gotrax R7 costs more but comes from a brand with a US support operation, and the Heybike Cityscape 2.0 remains our benchmark commuter if the budget stretches.