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Aventon Aventon logo• Class 1 (Convertible to Class 2 and/or Class 3)

Aventon Level 4 ADV Step-Through

A $2,799 mid-drive commuter with a 100 Nm Aventon Ultro S motor, 800 Wh battery, automatic shifting and built-in GPS security, with published reviewers reporting well over 100 miles of range in low assist.

Side view of a purple Aventon Level 4 ADV step-through e-bike with a low entry frame, rear rack, fenders, suspension fork and mid-drive motor on a white background.
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Aventon Level 4 ADV Step-Through at a glance: who it fits

The Aventon Level 4 ADV Step-Through is a $2,799 mid-drive commuter with a step-through frame with a low entry point for easy mounting. It is Aventon’s first mid-drive Level 4: an Aventon Ultro S motor rated at 100 Nm of torque and 750 W peak, an 800 Wh battery, a Shimano Cues 10-speed drivetrain and Aventon’s connected security suite. Aventon claims up to 110 miles per charge. Published reviewers who tested the ADV line praised the natural pedal feel, unusually long range and the automatic shifting, and flagged a missing brake light, a slow-reacting AutoShift on hill crests and a throttle that is sold separately.

Choose it if you want a commuter that shifts and adjusts assist for you, you value a smooth mid-drive feel, and the $800 premium over Aventon’s hub-motor Level 4 REC is worth it to you. Look elsewhere if you want the lowest price, want a throttle included, or want a bike with no app or electronics to manage.

Key specifications, in plain English

All figures below are Aventon’s own published numbers as of September 2026.

  • Motor: Aventon Ultro S mid-drive, 750 W peak, 100 Nm. A mid-drive motor sits at the pedals and drives the chain, so it works through the bike’s gears; a hub motor sits in the wheel. Mid-drives usually feel more like your own pedalling.
  • Battery: 36 V, 800 Wh, with Samsung 21700 cells. Watt-hours are the best measure of battery size: more Wh generally means more distance. Aventon claims up to 110 miles, which assumes gentle assist.
  • Speed: 20 mph in Class 1, with 28 mph available when unlocked (Aventon’s step-through page words this as 28 mph unlocked with throttle). Class rules vary by state; see legality below.
  • Drivetrain: Shimano Cues 10-speed. Reviewers describe an electronic AutoShift feature and an Auto assist mode that manages gears and power together.
  • Brakes: Tektro HD-M3120 two-piston hydraulic disc brakes.
  • Suspension and tires: 100 mm adjustable coil-spring fork with lockout and thru-axle; Kenda K1052 27.5 x 2.2 inch tires.
  • Weight and load: 61 lb listed; 300 lb maximum payload. Frame is 6061 aluminum.
  • Safety certification: Aventon states UL 2849 (whole bike system) and UL 2271 (battery).
  • Display: A280 center display.

What independent reviewers found

We do not present other publishers’ test data as our own. Below is what each published review reported, attributed to its source. These reviews were of the ADV line as sold in the high-step frame; Aventon lists the step-through with the same motor, battery, drivetrain and brake specs, and two of the reviews mention a step-through option, but we did not find a review that reports separate step-through numbers.

Range

Electric Bike Review (Mike East, March 2026) reported 118 miles in Eco assist and 55 miles in Turbo. Electric Bike Report (John S. Bozick, March 30, 2026) reported 120.8 miles in Eco and 54.6 miles in Turbo, and placed the ADV among the top five range results it had recorded across all the e-bikes it tested. Both exceeded Aventon’s 110-mile claim in Eco. The spread between Eco and Turbo is more than double, so your assist habits matter more than the headline claim.

Motor feel, hills and braking

Electric Bike Review described the mid-drive power delivery as smooth and natural. Electric Bike Report timed a climb of a hill it calls Devil’s Backbone in 1 minute 49 seconds at an average of 16.6 mph, and measured an average braking distance of about 20 feet. Its Class 3 top speed was around 28 mph.

AutoShift and Auto assist

Freshly Charged (April 17, 2026) called the AutoShift and Auto Mode combination the headline feature and said the mid-drive feels more organic than a hub motor. Electric Bike Review liked that Auto mode removes manual assist-level fiddling, but noted a 3 to 5 second delay before AutoShift shifts up at the crest of a hill. Electric Bike Report said the electronic shifting needs some advance planning if you need several gear changes.

Security and connected features

The reviews noted the security suite: GPS, 4G connectivity, geofencing and an electronic rear-wheel lock. Electric Bike Review said the advanced features can be opted out of in the app and that touchscreen customization does not require a subscription; check Aventon’s current terms before buying, since policies change.

Where reviewers found problems

  • No physical key backup for the electronic battery release, so a software fault could complicate removing the battery (Electric Bike Review).
  • Throttle sold separately (Electric Bike Review and Freshly Charged). This matters if you want a Class 2 style throttle.
  • No brake light tied to the hydraulic brakes (Electric Bike Report and Freshly Charged).
  • Small details: Freshly Charged listed turn signals without auto-cancel, tools needed to adjust seat height, and plastic pedals and fenders on a premium-priced bike.

Where sources and numbers disagree

Aventon lists 61 lb; Electric Bike Review reports 65 lb with the battery (56 lb without) and Electric Bike Report measured 64.1 lb. The two Eco range results differ by about two miles, which is ordinary test variation. Frame options are described differently: Freshly Charged listed medium, large and extra large sizes of the standard frame, while Electric Bike Review and Electric Bike Report describe both step-through and high-step options, and Electric Bike Report describes five sizes fitting riders roughly 5’3″ to 6’3″ and taller. Confirm current sizes on Aventon’s page.

Who should buy the Aventon Level 4 ADV Step-Through

  • Commuters who prioritize range and a refined mid-drive feel and will pay more for it.
  • Riders who like the idea of gears and assist adjusting themselves.
  • Riders in theft-prone areas who want built-in GPS tracking and a rear-wheel lock.
  • Riders who want an easy step-over, for example because of mobility, a cargo-laden commute or frequent stops.

Who should skip it

  • Shoppers on a tighter budget; the hub-motor REC costs $800 less according to Electric Bike Review.
  • Anyone who wants a throttle included in the price.
  • Riders who want a bike with fewer electronics and no app.
  • Riders planning serious trail use; see our eMTB and trail e-bikes instead.

Aventon Level 4 ADV Step-Through legality: which class is it?

Aventon lists this bike as Class 1 (20 mph pedal assist), convertible to Class 2 and/or Class 3, which raises the assist ceiling to 28 mph. Classes are regulated state by state and sometimes city by city, and Class 3 riders often face age, helmet or path restrictions. Check your state in our 50-state e-bike law guide before unlocking a higher class. Aventon states UL 2849 and UL 2271 certification; our explainer on UL 2849 and UL 2271 covers what those marks do and do not cover.

Price and value

Aventon lists the bike at $2,799 (storefront data read September 19, 2026). Electric Bike Review places it $800 above the Level 4 REC, and the value argument rests on range, mid-drive feel and automation rather than raw power. Prices and promotions change, so confirm the current price on Aventon’s site.

Aventon Level 4 ADV Step-Through vs. the alternatives

Before you buy: a short checklist

  1. Confirm frame size and height range on Aventon’s page for the step-through frame.
  2. Decide whether you need a throttle, since reviewers report it is a separate purchase.
  3. Check your state’s class, age and helmet rules before unlocking Class 3.
  4. Check current terms for the connected security features.
  5. Read how shipping and returns work on our site (Aventon ships and handles returns, not us).

Frequently asked questions

How far can the Aventon Level 4 ADV Step-Through go on a charge?

Aventon claims up to 110 miles. Electric Bike Review reported 118 miles in Eco and 55 in Turbo; Electric Bike Report reported 120.8 and 54.6.

How fast is it?

Aventon lists 20 mph in Class 1 and up to 28 mph when unlocked. Reviewers reported about 28 mph in Class 3.

Does it have a throttle?

Electric Bike Review and Freshly Charged said the throttle is sold separately on the ADV. Aventon’s step-through spec mentions 28 mph unlocked with throttle, so confirm what is included on the product page.

Is the battery UL certified?

Aventon states UL 2849 for the bike system and UL 2271 for the battery.

Is it a mid-drive or hub motor?

Mid-drive, the Aventon Ultro S.

Sources and further reading

Full manufacturer specifications

  • E-bike class: Class 1 (Convertible to Class 2 and/or Class 3)
  • Motor: Aventon Ultro S Mid-drive Motor
  • Peak wattage: 750W Peak
  • Torque: 100Nm
  • Top speed: 20mph (28mph unlocked with throttle)
  • Battery capacity: 800Wh
  • Battery voltage: 36V
  • Battery cells: Samsung 21700 58E
  • Safety certification (as stated by manufacturer): UL 2849 and UL 2271
  • Weight: 61lbs
  • Maximum payload: 300 lbs
  • Frame: 6061 Aluminum
  • Brakes: Tektro HD-M3120 2-Piston Hydraulic Disc Brakes
  • Drivetrain: Shimano Cues 10-Speed
  • Suspension: 100 mm Travel, Adjustable Coil Spring with Preload Adjustment and Lockout, 15×100 mm Thru Axle, 43 mm Offset, Tapered Steerer Tube
  • Tires: Kenda K1052, 27.5×2.2"
  • Display: A280 Center Display
  • Range (manufacturer claim): Up to 110 Miles

Quick answers about the Aventon Level 4 ADV Step-Through

What are the Aventon Level 4 ADV Step-Through's key specifications?

Torque: 100Nm. Battery: 800Wh. Weight: 61lbs. Max payload: 300 lbs. These are manufacturer-published figures, not our measurements.

Is the Aventon Level 4 ADV Step-Through a Class 1, 2 or 3 e-bike?

The manufacturer lists the Aventon Level 4 ADV Step-Through as: Class 1 (Convertible to Class 2 and/or Class 3). E-bike class rules and age limits differ by state, so check your state before buying.

How far can the Aventon Level 4 ADV Step-Through go on one charge?

The manufacturer claims Up to 110 Miles. That is a manufacturer claim, not our measurement; real range depends on rider weight, terrain, assist level and temperature.

How much does the Aventon Level 4 ADV Step-Through cost?

The manufacturer's list price when we last checked was $2,799. Prices and promotions change, so confirm on the brand's site.

Is the Aventon Level 4 ADV Step-Through UL certified?

The manufacturer states: UL 2849 and UL 2271. UL 2849 covers an e-bike's whole electrical system and UL 2271 covers the battery; we link the certification evidence where we have it.

Keep exploring

Specifications source: manufacturer product page, retrieved 2026-09-19.