E-bikes & cycling accessories

TST Electric Bike for Adults, 48V 15/25 Ah Battery, 2000W Peak Motor, 28MPH

At $559.99, the TST electric bike delivers a dual-suspension platform powered by a 750W hub motor and a 720Wh removable battery pack. However, at a substantial 66 pounds, its reliance on mechanical disc brakes and an unverified UL certification status warrant careful scrutiny before purchase.

Research review based on the manufacturer's listing, published specifications and buyer ratings, updated 03/10/2026. Not a hands-on test — see how we review.

TST Electric Bike for Adults, 48V 15/25 Ah Battery, 2000W Peak Motor, 28MPH
Price

$559.99

Amazon rating

4.2

4.2
Ratings

398

Best for Suburban commuting requiring higher sustained speeds

With a high-output 2000W peak motor and 28 mph capability, this bike likely exceeds 50 pounds, making hydraulic disc brakes a necessary checkpoint for safe stopping. Real-world hill climbing will depend more on sustained torque output than peak wattage ratings. Check the manufacturer documentation to confirm electrical certification on the substantial 48V battery.

What we like

  • Large battery capacity options
  • Sufficient peak power for fast cruising
  • Class 3 speed capability

What to weigh up

  • Heavier weight requires verified hydraulic braking
  • UL certification is not explicitly specified
Check today's price on Amazon

Price and rating were captured on 03/10/2026 and change often. We earn a commission on qualifying purchases.

Our scorecard

Weighted against our category rules
6.4out of 10
Overall
  • Build quality6.8

    Substantial frame with dual suspension, offset by budget hardware choices

  • Braking & safety5.4

    Mechanical disc brakes struggle to manage a 66-pound curb weight safely

  • Motor performance6.5

    750W motor reaches 28 mph but lacks published Newton-meter torque figures

  • Electrical & battery6.0

    Decent 720Wh capacity, but UL 2849 safety certification is not listed

  • Value for money7.3

    Low initial price tempered by a brief 180-day warranty coverage period

The full review

Design and build

The TST electric bike adopts a compact moped-style architecture, combining a dual-suspension frame with 20 by 4.0-inch fat tires designed for mixed terrain. Weighing in at 66 pounds, this is a substantial machine that demands robust structural components, especially considering its stated 450-pound maximum load capacity. Drivetrain components include a standard 7-speed rear derailleur controlled by a twist-grip shifter, which provides basic mechanical range for pedal cadence adjustments. While the technical specifications confusingly list linear-pull brakes, the manufacturer text clarifies that stopping power comes from front and rear mechanical disc brakes. On a vehicle exceeding 50 pounds, cable-actuated mechanical discs represent a compromise; hydraulic systems offer far superior lever feel, reduced maintenance, and the required clamping force for high-mass setups. Prospective owners must note the manufacturer requirement to manually inspect and adjust these mechanical calipers before every journey, underscoring the maintenance burden inherent to the platform.

Real-world performance

Propulsion relies on a rear hub motor rated at 750W nominal, with conflicting manufacturer documentation citing peak outputs of either 1500W or 2000W. While the bike reaches a claimed top speed of 28 mph, top speed metrics obscure the most vital parameter for heavy electric bikes: torque. The manufacturer does not publish a Newton-meter torque rating, which is what dictates acceleration from a standstill on steep grades or under heavy loads. Power is fed by a 48V 15Ah lithium-ion battery providing 720 watt-hours of capacity. Advertised range extends from 40 miles on pure throttle to 65 miles in pedal-assist mode, though real-world figures will decrease markedly when carrying heavy cargo or tackling steep inclines. The dual-suspension layout combined with high-volume, low-pressure 4-inch rubber effectively isolates the rider from surface chatter over unpaved routes, but the lack of hydraulic braking limits downhill control when carrying maximum payload.

Value for money

Priced at $559.99, this machine enters the market at an accessible price threshold for a dual-suspension fat-tire e-bike. Consumer sentiment remains moderately favorable, reflected in an aggregate rating of 4.2 out of 5 stars across 398 reviews. For this modest investment, buyers receive an LCD display, a 720Wh removable battery, and high-volume tires capable of urban and light trail duties. However, cost concessions are visible throughout the bill of materials. The short 180-day warranty provides minimal consumer protection compared to the one- or two-year policies standard among established bicycle manufacturers. Furthermore, electrical testing benchmarks are omitted; the product literature makes no mention of UL 2849 system certification, which validates fire and electrical safety for North American consumers. Buyers seeking entry-level motorized transport will find the upfront price compelling, provided they factor in the eventual expense of upgrading braking components.

Who should skip it

Riders traversing hilly topography with heavy cargo should look elsewhere. The 66-pound curb weight combined with mechanical disc brakes directly contradicts the engineering benchmark that heavy electric bicycles require hydraulic stopping power to ensure consistent deceleration. Additionally, commuters living in apartments or jurisdictions that mandate certified electrical fire standards should skip this model unless the seller can formally verify UL 2849 certification on the battery and charging system. Anyone uncomfortable performing frequent mechanical adjustments will find the continuous brake tuning tedious, as cable stretch and pad wear require routine intervention. Finally, prospective riders seeking a dependable long-term warranty or clear motor torque documentation for heavy utility hauling should look toward higher-tier manufacturers who specify peak Newton-meters and provide comprehensive multi-year customer support.

Specifications

As listed by the manufacturer
Bike TypeElectric Bike
Number Of Speeds7
Suspension TypeDual
Additional FeaturesLCD-Display
Brake StyleLinear Pull
Specific Uses For ProductRoad, Trail
Power SourceElectric motor (rechargeable battery-powered)
Lithium Battery Energy Content720 watt-hours
Bicycle Gear Shifter TypeTwist Grip
Intended Riding TerrainMountain Terrain, Unpaved Trails, Urban Terrain
Derailleur ConfigurationRear
Bicycle Drivetrain Typehub drive
Electric Assist Typepedal assist, throttle assist
Battery Life6 hours
Wheel Size20 inches
Size20*4.0

What the maker claims

  • 【Excellent Motor Performance】This electric bike is equipped with a high-performance 750W motor(2000W peak) with 2 to 3 speed settings, capable of meeting your daily commuting and off-road riding needs—so you never have to worry about speed
  • 【Upgraded Removable Battery】 Powered by a 48V 15Ah removable battery, the ebike can be fully charged in just 6-7 hours and can ride up to 65 miles on a full charge (PAS mode). Depending on weight, the electric dirt bike can ride up to 40 miles in throttle mode and 50-60 miles in PAS mode, making long rides less of a challenge with its impressive range. The removable battery is safe and anti-theft, so you can charge it at home or outdoors without worry
  • 【Comfortable Riding Experience】 This fat tire electric bike is equipped with front and rear suspension system, which absorbs most of the bumps and vibrations during riding, providing a more comfortable riding experience and reducing body fatigue.20"x 4" puncture-proof snow tires for electric motorcycle provide a stronger grip, ensuring the vehicle's stability and easily handle any adventure
  • 【Safety First】 The electric bike for adults high-brightness front light greatly improves driving visibility, allowing you to see the road clearly even at night. The front and rear mechanical disc brakes are designed to provide controlled braking under normal operating conditions. Riders must inspect and adjust the brakes before the first ride and before each subsequent ride
  • 【Personalized Riding】 This ebikes for adults is equipped with professional 7-speed gears and 3 working modes, which can be changed according to different terrains, and can easily pass through city streets, rugged mountains and beaches. The LCD display allows you to easily keep track of your ride data, such as current speed, distance and battery level, so you can customize a ride based on this information
  • 【EASY Assembly & Reliable Support】 The e-bike is 90% pre-assembled, you can refer to the assembly video and user manual to complete the remaining assembly easily. Adult electric bicycles weighs 66 lbs, has a maximum load of 450 lbs and comes with a 180-day warranty. If you have any questions, please don't hesitate to contact us. Note: Please check whether the parts of the electric bike are tightened before riding, Users under the age of 16 should be accompanied by an adult when using an ebike

How it compares

Same category
ProductPriceRatingRatings countOur score
TST Electric Bike for Adults, 48V 15/25 Ah Battery, 2000W Pe (this one)$559.994.2398 ratings6.4
Ascher Ultra Bright USB Rechargeable Bike Light Set, Powerfu$16.994.432,746 ratings7.2
Zewdov Bike Lights for Night Riding, Rechargeable Bike Light$15.994.64,015 ratings7.0
Cuvccn Bike Lights Super Bright, Rechargeable Bicycle Lights$19.994.63,855 ratings7.9
Jasion EB5 Electric Bike for Adults 26" tire with 1000W Peak$250.004.12,609 ratings5.9

Common questions

Does the TST electric bike carry a UL 2849 safety certification?
The provided specifications and marketing details do not mention UL 2849 certification for the 48V 15Ah battery or charger. Buyers should contact the manufacturer directly to confirm whether the complete electrical drive system has undergone independent laboratory testing, which is a critical safety consideration for indoor residential storage.
Are mechanical disc brakes sufficient for a 66-pound electric bike?
Mechanical disc brakes provide baseline stopping capability, but they require frequent manual cable adjustment and deliver less clamping power than hydraulic alternatives. Given the bike's 66-pound weight and 28 mph top speed, hydraulic disc brakes represent a recommended safety upgrade to ensure dependable stopping distances on loaded downhill routes.
What is the motor torque output for starting on steep hills?
The manufacturer specifies a 750W nominal motor with up to 2000W peak output, but omits a torque rating in Newton-meters. Because torque dictates hill-climbing ability under load, buyers intending to start on steep inclines should verify this figure with the seller prior to making a purchasing decision.
What warranty coverage is included with the purchase?
The e-bike includes a 180-day limited warranty covering assembly and parts support. This six-month window is relatively brief for the electric bicycle sector, so buyers should thoroughly inspect all electrical and mechanical components upon receipt and ensure regular maintenance to preserve functionality beyond the initial warranty period.

How we judge e-bikes & cycling accessories

  1. Rule 01

    Torque, not top speed, is what you feel on a loaded hill start.

  2. Rule 02

    Look for UL 2849 certification on the battery and charger.

  3. Rule 03

    Hydraulic discs are worth the upgrade on anything over 50 lb.

Ready to buy?

Prices move daily. Check the current listing before you decide — the figures above were captured on 03/10/2026.

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