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Heybike

Class: not stated by heybike

Folding

Heybike Mars 2.5

Name: Heybike Mars 2.5
Brand: Heybike

Replaces the Mars 2.0

The Mars 2.0 is the budget gateway. It works — just don't expect Lectric-level support.

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Full specifications

Price: See today's price at Heybike
Category: Folding
Class: Not stated by Heybike
Top Speed: 28 mph
Motor: 750W rear hub
Motor Power: 750W nominal / 1000W peak
Torque: 85 Nm
Battery: 600Wh, 48V lithium, removable
Range: up to 45 miles (claimed)
Weight: Not stated by Heybike
Frame: High-carbon steel, folding
Brakes: Hydraulic disc
Drivetrain: Shimano 7-speed
Suspension: Front (no rear suspension listed)
Tires: 20" x 4" fat
Max Payload: Not stated by Heybike
Warranty: 2 years
Handlebar: BMX-style
Display: Color LCD, 6-button control panel
Lights: Headlight, taillight
Included: Rear rack, fenders, comfort saddle
Certification: UL 2849

Specs last verified against heybike.com/products/mars-2-5 on October 8, 2026. Heybike's page does not publish the 2.5's weight, max payload or e-bike class.

What's good (editorial)

Hydraulic disc brakes replace the 2.0's mechanical discs (per Heybike), which fixes our biggest complaint about the 2.0.
750W, 1000W peak and 85 Nm of torque: plenty of hill help for a folder.
Ready for errands out of the box: rear rack, fenders, lights and a removable 600Wh battery are included.
The electrical system is UL 2849 certified, and the bike folds for car, RV or apartment storage.

Trade-offs (editorial)

Heybike doesn't publish the 2.5's weight, max payload or e-bike class, so check before buying if you'll carry it up stairs or ride where class rules apply.
The frame moved from aluminum (2.0) to high-carbon steel, which usually adds weight.
Front suspension only, and the 45-mile range claim comes with no test conditions.

What we'd change

Mechanical brakes on a heavy fat folder is the wrong call
Build quality reflects price

Who it's for

Riders on a tight budget who want a folding fat-tire e-bike for errands, campsites and mixed pavement or gravel and can store or carry a heavy bike. If you need a published weight, a light carry or a rear suspension, compare the Mars 3.0 or Venus on our Heybike page.

Editor's note

Heybike has replaced the Mars 2.0 with the Mars 2.5 (heybike.com now redirects the Mars 2.0 page to the 2.5, checked Oct 8, 2026). Heybike says the 2.5 moves to hydraulic disc brakes, a BMX-style handlebar and 6-in-1 controls, with a high-carbon steel frame instead of the 2.0's aluminum. Our verdict below was written for the Mars 2.0; we haven't re-scored the 2.5.

Mars 2.0 verdict (April 2, 2026)

By Sean Lupton-Smith · April 2, 2026 · Assessed against how we score

Research-based verdict. This is an editorial assessment built from spec analysis, verified owner reports, and independent third-party testing — not our own test ride (yet).

The Mars 2.0 is the budget gateway into folding fat-tire e-bikes — for the buyer on a tight budget who wants the novelty of full suspension and 20×4-inch tires without a bigger investment. It works for casual, low-speed neighborhood use. Anyone who rides daily, needs reliable support, or values stopping confidence should stretch to a Lectric XP 3.0, because this is where corners get cut.

The 7.6 is the lowest of the mainstream folders here, and it's earned. Build-and-serviceability is the soft spot — Heybike's support doesn't match Lectric's, and quality reflects the price. The bigger mark against it is brakes-and-safety: mechanical disc brakes on a 73-lb fat-tire folder is the wrong call, as the listing itself flags, since heavy bikes need hydraulics to haul down safely. The full coil suspension is a genuine plus at this price, so ride quality fares better.

The compromise you're accepting is fade-prone braking and thinner support in exchange for the lowest price of entry. That's a real cost on a heavy bike, so ride it conservatively and keep speeds down. If you can stretch your budget a little, the Lectric XP 3.0 gets you responsive support and a better-sorted package; the Mars 2.0 makes sense mainly when the budget is a hard limit.