Heybike Horizon Full Suspension 24-Inch Folding Fat-Tire E-Bike

The Horizon fits you if your routes are longer or rougher than a typical urban commute. A weekend touring rider on mixed pavement and gravel paths. A neighborhood explorer covering varied surfaces on weekend rides. A multi-modal commuter who folds the bike for RV or large-vehicle trunk transport (the 49.2-inch folded length needs an SUV cargo area, an RV cargo bay, or a large hatchback). A rider preferring the step-thru low-step frame for accessibility.

Other strong fits: an apartment dweller with a ground-floor bike room or garage where 79 lb storage is acceptable. A rider stepping up from a 20-inch urban folder (like the Mars 2.0) after discovering longer rides need the smoother 24-inch roll. A rider for whom hydraulic disc brakes and Shimano 7-speed gearing matter as standard at sub-$1,500. A rider who wants color variety beyond the typical black-and-blue options (the Sunset and Gradient Cynical Black colorways are distinctive).

Skip the Horizon when storage is a multi-flight walk-up apartment without ground-floor access (the 79 lb weight is not stair-carry friendly). Skip it when urban-trunk compactness is the binding constraint (the Mars 2.0's 37.4-inch folded length fits where the Horizon's 49.2-inch does not). Skip it when your routes are 80 percent smooth paved bike lanes (a thinner-tire commuter weighs less and rolls faster on pavement). Skip it when you need 30-plus mph top speed (the Horizon caps at 28 mph Class 3).

The 750W brushless geared rear-hub motor delivers 1400W peak power and 80 Nm (59 lb-ft) of torque. Twenty-eight mph top speed matches the common state Class 3 e-bike top-assist speed ceiling. The Heybike Smart App typically supports Class 2 (20 mph) and Class 3 selection through a Speed Settings menu. Verify the class-switching behavior on the Horizon with Heybike customer support if your routes cross jurisdictions with different class rules.

The Shimano 7-speed gear shift system lets you extend range through pedaling and provides a mechanical fallback in pedal-assist for hill climbing. Shimano components shift more smoothly than generic 7-speed sets, hold their adjustment longer, and accept owner-installed replacement parts at U.S. bike shops. The thumb throttle and pedal-assist sensor combine for the typical hybrid e-bike riding pattern.

Hill performance: the 80 Nm (59 lb-ft) torque on a 24-inch wheel delivers comfortable climbing on 6 to 8 percent grades with a single rider. Sustained 10-plus percent grades will work the motor harder, and pedaling input meaningfully helps. The 24-inch wheel format rolls smoother on longer touring rides than 20-inch wheels (the Mars 2.0 format) and absorbs trail obstacles, curb cuts, and pavement seams more comfortably. The full-suspension package adds to the touring-comfort positioning.

A 692Wh removable lithium-ion battery powers the Horizon. The capacity sits between typical mid-tier folding fat-tire batteries (the Mars 2.0 ships with 600Wh, flagship folders run 750Wh or more). Heybike publishes a 55 mile maximum range claim. That figure assumes a 150 lb or lighter rider in the lowest pedal-assist mode on flat pavement with no wind, warm temperatures, and meaningful pedaling input from you.

Realistic range for a 180 lb adult commuting in mid-level pedal assist (PAS-3 of 5) at 18 to 22 mph on rolling pavement and mixed terrain lands closer to 26 to 36 miles per charge. Flat commutes in Chicago, Minneapolis, and Miami reach the top of that band. Hill routes in Seattle, San Francisco, and Pittsburgh land near the bottom. The 24-inch wheel format rolls slightly more efficiently than 20-inch, which gives the Horizon a small real-world range advantage at the same battery capacity vs the Mars 2.0. Fat-tire rolling resistance still reduces range vs thinner-tire bikes. Hills, cargo, heavier riders, cold weather, and stop-and-go riding reduce range further.

The removable battery is genuinely useful for apartment dwellers and office riders who cannot leave the bike near an outlet during the work day. Carry the battery separately for upstairs charging while the 79 lb bike stays in the bike room or garage. Use only the included Heybike charger and follow the U.S. CPSC Micromobility Information Center charging guidance for lithium batteries at this capacity.

Heybike publishes UL 2849 system certification on the Horizon page. UL 2849 covers the complete electrical system (battery, charger, motor controller, and wiring tested as a single unit). UL 2849 supports indoor storage and charging in U.S. apartment buildings, condos, HOAs, dormitories, and offices that require it. The Horizon is appropriate for the typical residential setting that asks about certified e-bikes for indoor lithium battery storage.

UL 2271 (battery-system safety) is not separately published on the Horizon product page. UL 2849 system certification typically requires UL 2271 battery-system certification as part of the system test, but buyers needing separate UL 2271 documentation should ask Heybike customer support in writing.

Hardware safety on the Horizon is appropriate for the Class 3 performance class and the touring positioning. Hydraulic disc brakes front and rear (standard on all color variants) deliver stronger stopping power than mechanical discs and require less adjustment over time. Front and rear LED lighting handles dusk and dawn visibility. The low-step frame reduces mounting-and-dismounting accident risk for riders who would otherwise leg-swing over a high top tube. A properly fitted bicycle helmet is the minimum protective gear. The Class 3 setting requires a helmet in many U.S. states regardless of rider age.

The box ships with the Horizon, the Heybike charger, basic tools, the manual, and standard Heybike documentation. Heybike pre-assembles the bike to a high percentage of its final form. Out of the box, the typical owner installs the handlebars, the front wheel and fender, the seat at the appropriate height, the pedals, and any rear-rack accessory. Charge the removable battery overnight and walk through each pedal-assist level in a parking lot before any longer ride.

First-ride routine: confirm front and rear fat-tire pressure with a gauge (24-by-4-inch fat tires typically take 18 to 30 PSI depending on rider weight and terrain, consult the manual), verify both hydraulic brake levers feel firm before any roll (hydraulic systems should not require breaking-in), walk the front and rear suspension through full travel by hand, practice the Shimano 7-speed shift through all gears at low speed, pair the Heybike Smart App over Bluetooth, and start at the lowest pedal-assist mode for the first 30 minutes. Practice the folding mechanism twice in a calm location before relying on it for car or RV transport. Save the 28 mph top speed for after 30 to 60 minutes of riding experience.

Ongoing ownership: fat tires need monthly pressure checks. The Shimano 7-speed drivetrain benefits from chain lubrication every 500 miles and cable adjustment at 200 miles after the initial cable stretch. Hydraulic disc fluid level should be visually inspected every six months. The folding hinge should be inspected for play and tightness every 200 miles. Heybike publishes a 1-year warranty (per the page FAQ) with extended warranty potentially available at purchase and manufacturer-published trial language. Confirm the warranty term, freight responsibility on warranty returns, and any restocking fee on a trial-period return in writing on your order before paying.

Motor and speed. 750W brushless geared rear-hub motor (1400W peak). 80 Nm (59 lb-ft) torque. 28 mph top speed. Thumb throttle plus pedal-assist sensor. Shimano 7-speed gear shift system.

Battery and charging. 692Wh removable lithium-ion battery. 55 mile maximum range claim. Heybike standard charger included.

Brakes, tires, frame. Hydraulic disc brakes front and rear (standard on all variants). 24 by 4 inch fat tires with puncture protection. Aluminum-alloy low-step folding frame.

Suspension. Full suspension: front fork plus rear shock.

Folding mechanism and dimensions. Folded dimensions 49.2 by 23.6 by 31.5 inches. Unfolded dimensions 75.6 by 24.4 by 46.5 inches. 79.4 lb (36 kg) bike weight. 330 lb maximum combined rider and cargo weight.

Display, app, lights. LCD display. Heybike Smart App support for PAS customization. Front and rear LED lighting.

Certification, support, colors. UL 2849 certified. 1-year original warranty (extended options available, confirm with Heybike customer support). manufacturer-published trial language. Four colors: Cyan and Pearl, Black and Blue, Gradient Cynical Black, Sunset. $1,399 sale price (regular $1,999, $600 / 30 percent off).

At $1,399 sale (down from $1,999), the Horizon is one of the more spec-dense folding fat-tire e-bikes in the value-import segment at the sub-$1,500 tier. The 24-inch wheel format delivers smoother long-distance roll than typical 20-inch folding fat-tires (including the Mars 2.0). Hydraulic disc brakes standard on all variants, the Shimano 7-speed gear shift system, the full-suspension package, the low-step accessibility frame, the 692Wh removable battery, UL 2849 certification, and the four color options together exceed what a $1,399 folding fat-tire bike typically delivers.

The honest constraints are size, weight, and warranty term. The 49.2-inch folded length is meaningfully larger than the Mars 2.0's 37.4-inch and the Helio F's 35.4-inch. Sedan-trunk fit requires rear-seat folding or a larger vehicle. The 79 lb bike weight is not stair-carry friendly. The original warranty per the Heybike page FAQ is 1 year (vs Heybike's 2-year framing on other models). Extended warranty options may be available, so verify before paying. The 55 mile range claim is best treated as a 26 to 36 mile real-world commute under typical adult-rider use.

What the Heybike page supports clearly: identity as a 24-inch folding fat-tire e-bike, motor wattage and peak figure, torque, top speed, the Shimano 7-speed gearing, the 692Wh battery, the 55 mile range claim, hydraulic disc brakes as standard, the 24 by 4 fat tire format with puncture protection, the full-suspension package, the low-step frame design, UL 2849 certification, the 79 lb weight, the 330 lb max load, the four-color variant matrix, the 49.2-inch folded length, the StreetRides US returns follow a 7-day return window with a 20% restocking fee, and the 116 customer reviews. What is less certain: separate UL 2271 documentation status, real-world range under specific rider profiles, the exact extended warranty terms beyond the 1-year original, and the trial-period return freight and restocking terms. Worth confirming before a $1,399 purchase decision.