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Abound SR Ebike vs TST Carrier 20'' Cargo Electric Bike

Buy the Aventon Abound SR if you want a compact, connected cargo bike from an established brand with theft deterrence built in. Buy the TST Carrier 20'' if you want more motor, more speed and more torque for less money. The TST's higher peak power and 28 mph top speed come with a heavier assembly burden and reported fit and finish issues; the Aventon's 4G/GPS and startup password are the standout features on its side.

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Aventon
Abound SR Ebike

Abound SR Ebike

4.8· 50 ratings

Choose the Aventon Abound SR if you want a one-size compact cargo frame that fits riders from 4'11" to 6'3", plus 4G/GPS tracking and a startup password for theft deterrence.

Pros
  • 4G/GPS tracking, geofencing and a startup password are real theft deterrence
  • One compact frame fits riders from 4'11" to 6'3"
  • Battery is keyless and cross-compatible with several other Aventon models
Pre-installed fenders and rear rack out of the box
  • IPX5 bike and IPX6 component water resistance
    • Cons
    • Class 2 20 mph limit is well below the TST's 28 mph
    • 36V system and 750W nominal motor put out less peak power than the TST
    • Rear seat pad and pegs for kids are sold separately
    • 80 lb is heavy to lift and store
    TST
    TST Carrier 20'' Cargo Electric Bike

    TST Carrier 20'' Cargo Electric Bike

    4.8· 146 ratings

    Choose the TST Carrier 20'' if you want a 1300W peak motor, 90 N·m of torque and a 28 mph top speed, and you are willing to assemble and adjust it yourself.

    Pros
    • 1300W peak motor with 90 N·m of torque
    • 28 mph top speed
    • 180mm hydraulic disc brakes for stopping under load
    • 450 lb payload and a cargo deck that swaps in for the child seat
    • Front suspension fork
    Cons
    • Buyers report assembly takes hours and the manual conflicts with the video
    • Reported fit issues: running boards and front rack mount, seatpost shim that lets the post rotate
    • App connectivity problems and display buttons that need multiple presses
    • No battery disconnect to the rear hub, which complicates service
    • Some parts arrived scratched

    What separates them

    Abound SR EbikeTST Carrier 20'' Cargo Electric Bike
    Peak motor power1440W in Boost mode (750W nominal)1300W peak
    Top speed20 mph, Class 2, adjustable to 25 mph28 mph
    TorqueNot published; Boost adds up to 120% for 30 seconds90 N·m
    Battery36V 20Ah, 733Wh, LG 21700 cells, removable48V 15Ah, 720Wh, removable
    Payload440 lb450 lb
    Connectivity4G/GPS tracking, geofencing alerts, startup passwordPhone app
    BrakesNot specified in the listing180mm hydraulic disc
    Weight and fit80 lb, one size fits 4'11" to 6'3"20x3-inch tires, adult sizing

    Price history

    • Abound SR Ebike: lowest $1,899.00 on Oct 29.
    • TST Carrier 20'' Cargo Electric Bike: lowest $999.00 on Nov 2 at tstebike.

    Prices at every store

    Abound SR Ebike

    • BeaconBikesCheck price at BeaconBikes
    • Aventon BikesCheck price at Aventon Bikes
    • Ebike-EscapesCheck price at Ebike-Escapes
    Prices and history →

    TST Carrier 20'' Cargo Electric Bike

    • Veritas MarketCheck price at Veritas Market
    • Modern Productions®Check price at Modern Productions®
    • tstebikeCheck price at tstebike
    Prices and history →

    Specs compared

    SpecAbound SR EbikeTST Carrier 20'' Cargo Electric Bike
    Top Speed20MPH (Adjustable to 25MPH)28 MPH
    BatteryAventon 36V, 20Ah, 733Wh, LG 21700 cells48V 15Ah Removable Battery
    Motor Power750W—
    Peak Power1440W Peak in Boost—
    RangeUp To 60 Miles—
    Payload Capacity440 lbs—
    Wireless Connection4G/GPS—
    Weight80 lbs—
    Rider Height4'11" - 6'3"—
    Ebike ClassClass 2 Ebike—
    Pedal Assist3 Levels (with Ride Tune Customization)—
    Water ResistanceBike - IPX5 // Components - IPX6—
    Show all 22 specsShow fewer specs
    SpecAbound SR EbikeTST Carrier 20'' Cargo Electric Bike
    Peak Motor—1300 W
    Max Range—60 Miles
    Torque—90 N·m
    Phone App—YES
    Max Load—450 LBS
    Brakes—180mm Hydraulic Disc Brakes (Oil)
    Tire Size—20x3-inch
    Payload Rating—450 lb
    Color—Black
    Age Group—Adult

    What reviewers say

    Abound SR Ebike

    Owners rate the Abound SR highly, at 4.8 out of 5 from 50 ratings, and most praise its stability with loads and the confidence the connected security features add. Common complaints center on weight and range falling short of the Eco-mode figure once cargo and hills are involved.

    Pros
    • Stable and predictable with a child or heavy groceries aboard
    • Compact footprint for a cargo bike
    • GPS tracking and startup password ease theft worries
    • Boost Mode helps on loaded starts and climbs
    Cons
    • Heavy at 80 lbs to move when parked or stored
    • Real-world range below the 60-mile Eco claim
    • Cargo accessories for passengers add to the price

    TST Carrier 20'' Cargo Electric Bike

    Rated 4.8 out of 5 from 146 ratings. Owners call it a sturdy, good-value cargo bike that handles heavy riders and two kids, but many flag a long assembly and small fit-and-finish problems.

    Pros
    • Strong power and better-than-expected range
    • Sturdy build for heavy riders and two children
    • Comfortable, safe seating for kids
    • Easy to assemble and fun to ride, with responsive customer service
    Cons
    • Assembly takes hours and the manual conflicts with the video
    • Uncomfortable seat and a rotating seatpost
    • App connectivity and display button problems
    • Brake rub, poor rack fit and scratched parts on arrival

    Questions and answers

    Which is better for carrying two kids?
    Both are rated around 440 to 450 lb total payload, and both need a child seat or pad setup. The TST's child seat swaps to a 200 lb cargo deck in seconds, which is more flexible. The Aventon sells its rear seat pad and pegs separately.
    Which is faster?
    The TST Carrier tops out at 28 mph; the Aventon Abound SR is a Class 2 bike limited to 20 mph, adjustable to 25 mph. Check your local rules before riding above Class 2 limits.
    Is the Aventon worth the extra money?
    The Aventon's case rests on 4G/GPS tracking, geofencing, a startup password and a one-size frame that fits a wide range of riders. If you don't need those, the TST gives you more power and speed for less.
    Which is easier to live with day to day?
    The Aventon arrives with fenders and a rear rack installed and has connected features built in. The TST needs significant assembly time and adjustment, and buyers report brake rub and loose fittings out of the box.
    Which has better brakes?
    The TST specifies 180mm hydraulic disc brakes, which matter under a full load. The Aventon's listing does not state its brake spec, so confirm before buying.
    How far can each go on a charge?
    Both claim up to 60 miles. The Aventon's figure assumes Eco mode, a 165 lb rider and flat pavement; the TST's 60-mile claim is not qualified in the same detail.

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