Is the Spacewalk Electric Bike M7 the Best Budget Mini-Moto E-Bike?

BEST VALUE FAT-TIRE E-BIKE

Spacewalk Electric Bike M7 — Compact 1500W All-Terrain Fun

Our verdict: a powerful, cushy 20" fat-tire mini e-bike that delivers strong hill-climbing, real-world range and everyday utility at a budget price.

4.6/5

• 1500W peak rear hub motor and 48V 15Ah battery deliver punchy acceleration, solid hill-climbing and real-world commuting range.
• 4X suspension plus 20×4 all-terrain fat tires smooth out potholes, sand, snow and gravel for a surprisingly comfortable ride.
• Three riding modes, full lighting with turn signals, and a rear rack make it ready for daily errands, weekend trails and night rides.

Motor

750W rated / 1500W peak

Battery

48V 15Ah, removable

Top Speed

Up to 24.9 mph

Range

Up to 50–70 mi (PAS)

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If you’ve been hunting for a compact moped-style e-bike that can handle snow, sand, and city streets without costing a fortune, the Spacewalk Electric Bike M7 immediately jumps out. With 20" x 4" fat tires, four-point suspension, and a punchy motor that peaks at 1,500 watts, it’s clearly built to be more than just a grocery runner.

Unlike many entry-level fat-tire bikes that look aggressive but feel under-powered, the M7 is designed as a small “mini moto” that still fits riders around 5'5" and up. It aims at riders who want motorcycle styling and serious traction but still need something relatively easy to control, store, and charge at home. With a list price around $649 and frequent discounts, it sits firmly in the budget-to-midrange category.

This review follows a clear, reader-friendly structure so you can quickly decide whether the Spacewalk M7 belongs on your shortlist.

Quick Verdict

The Spacewalk Electric Bike M7 is a compact, budget-friendly fat-tire e-bike that prioritizes comfort and fun over ultra-light weight. The combination of 20" x 4" tires, 4-point suspension, and a 48V 15Ah battery makes it a very capable all-terrain runabout for teens and adults who want something more playful than a typical commuter.

Its strengths are strong acceleration, excellent shock absorption for the price, and a surprisingly complete safety package: turn signals, brake light, integrated headlight, horn, and dual disc brakes. On the flip side, the bike is heavy, uses mechanical discs instead of hydraulics, and its small moped frame won’t be ideal for very tall riders or people who need to carry it upstairs.

If you’re looking for a compact fat-tire e-bike to ride around neighborhoods, parks, beaches, and light trails—and you’re fine with the weight—the M7 offers a lot of value for the money.

At a Glance

• Category: 20" fat-tire, moped-style all-terrain e-bike
• Motor: 750W rated rear hub (up to 1500W peak), 3 speed levels
• Battery & Range (claimed): 48V 15Ah removable pack; up to ~50 miles throttle only and ~70 miles with pedal assist in ideal conditions
• Top Speed: Up to 24.9 mph according to the spec sheet
• Bike Weight / Payload: ~85 lb bike weight; rated up to 264 lb payload (rider + cargo)
• Wheel & Tire Size: 20" x 4.0" all-terrain fat tires
• Suspension: Dual crown front fork + twin rear shocks + cushioned saddle (4 shock absorbers total)
• Best For: Teens and adults wanting a compact, soft-riding fat-tire e-bike for mixed terrain and neighborhood fun

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What Is the Spacewalk Electric Bike M7?

The Spacewalk M7 is the larger “adult” model in Spacewalk’s small-frame e-bike lineup. The brand markets two similar bikes: the 16" M6 for shorter riders and teens, and the 20" M7 for riders 5'5" and above. Both share the same basic recipe: compact moped-style frame, 4-point suspension, fat tires, and a high-output hub motor tuned for zippy acceleration rather than featherweight efficiency.

On the road, the M7 sits somewhere between a BMX-like mini bike and a small electric moped. It keeps the wheelbase short and the seat low, which helps keep the bike approachable for newer riders and easy to maneuver in tight spaces. The 20" x 4" tires and 4-shock setup signal that this isn’t just a paved-path machine—it’s meant for snow, sand, gravel, and rougher neighborhood routes where potholes are a daily reality.

In the market, the Spacewalk M7 competes with entry-level 20" fat-tire bikes like the Lectric XP series and more playful mini-moto models like the Juiced RipRacer. However, Spacewalk leans hard into value: you’re getting a big battery, powerful motor, integrated lights and turn signals, and a rear rack at a price many rivals reserve for lower-powered or less-equipped models.

Key Specs

Spec	Detail
Motor	Rear hub, approx. 750W rated, up to 1500W peak, 3 power levels
Battery	48V 15Ah removable lithium-ion (around 720Wh)
Claimed Range	Up to ~50 miles throttle-only and up to ~70 miles with pedal assist in ideal conditions
Realistic Range (estimate)	Roughly 25–45 miles depending on rider weight, hills, PAS level, and throttle use
Top Speed	About 24.9 mph (factory spec) with assist; throttle-only speed is typically slightly lower
Bike Class (US)	Functionally a fast Class 2/3 style bike; peak power may exceed formal Class-2 limits in some regions
Bike Weight / Payload	~85 lb bike weight, 264 lb max load (rider + cargo)
Frame Material	Carbon-steel moped-style step-over frame
Wheel & Tire Size	20" x 4.0" all-terrain fat tires
Suspension	4-shock system: front suspension fork + dual rear shocks + large padded saddle
Drivetrain	Shimano 7-speed gearing (with 3 motor speed modes)
Brakes	Mechanical dual disc brakes, front and rear
Display & Controls	Backlit LCD display; PAS level selector; throttle; buttons for lights, horn, and turn signals
Lights & Safety	Integrated headlight, tail light, brake light behavior, left/right turn signals, horn, reflectors
Accessories Included	Rear rack, kickstand, horn, fenders, removable battery, basic toolkit

Who Is the Spacewalk M7 Best For?

Ideal For

• Riders 5'5" and taller who like the moped-style look but don’t want a huge 26" fat-tire frame. The geometry and 20" wheels keep stand-over and overall length manageable.
• Teenagers and lighter adults who want a lively bike for school runs, campus, and general neighborhood riding. The compact size makes it less intimidating than bulky full-size fat-tire bikes.
• Riders who see a lot of mixed terrain—broken pavement, dirt paths, shallow sand, snow, or grass. The combination of fat tires and four-point suspension is tuned more toward comfort than pure efficiency.
• Budget-conscious buyers who want a big battery and real power without crossing into premium price territory.

Not Ideal For

• Very tall riders (around 6'3"+) who prefer a stretched-out riding position. The M7’s compact frame can feel cramped for long legs on longer rides.
• Riders who need a lightweight bike to carry upstairs, lift into an SUV frequently, or hang on a wall rack. At ~85 lb with the battery, this is not a featherweight machine.
• Strict Class-1 or low-speed trail users. The M7’s peak output and ~25 mph top speed can exceed limits on some regulated bike paths and mountain-bike trails.
• Performance commuters wanting hydraulic brakes and top-tier components. The M7 is more about value and comfort than high-end parts.

Budget & Value Positioning

At a list price of roughly $649 (and often lower during promotions), the Spacewalk M7 lands firmly in the budget/mid-entry segment. For that money you’re getting:

• A motor that peaks around 1500W
• A 48V 15Ah battery (larger than many 10–12Ah packs on similar-price bikes)
• 4-point suspension and 20" x 4" fat tires
• Integrated lights, turn signals, and a rear cargo rack

You’re trading away premium hydraulic brakes, brand-name suspension components, and ultra-low weight. But as an all-rounder fun bike for neighborhoods and light trails, the value proposition is strong.

Design, Frame & Build Quality

Visually, the Spacewalk M7 leans heavily into mini-moto styling: a straight top tube, long bench seat, beefy fork, and wide fat tires. The design looks cohesive and modern without being over-styled. The graphics are simple, and the black/orange color combination helps it stand out just enough without screaming for attention.

The frame is made from carbon steel, which is heavier than aluminum but tends to feel solid and forgiving over rough roads. Welds on bikes in this price range are usually functional rather than art-gallery smooth, and the M7 is no exception, but overall the structure looks sturdy and purposeful. Outer cabling is routed reasonably cleanly along the frame with protective guides to avoid rubbing on sharp edges.

The integrated battery bay sits inside the main frame triangle, protected by a metal cover with a small key lock. This placement keeps the center of gravity low and central, which helps stability. Because the battery is removable, you can bring it inside for charging or security without moving the entire bike.

Included accessories are better than the bare minimum: full-length fenders, a rear rack, front and rear lights, horn, and kickstand are all part of the package. The rear rack is rated for about 55 lb, and the promotional photos show it carrying a pet carrier—perfect for small cargo runs or commuting with a backpack or groceries strapped down. That rack is welded into the rear triangle region, which adds rigidity but also means it’s not easily removed.

For the price point, the overall build quality feels competitive. The compromises—mechanical brakes, generic suspension parts, heavier frame—are exactly what you’d expect in this budget bracket.

Motor Performance & Speed

The Spacewalk M7’s rear hub motor is rated around 750W continuous and up to 1500W peak, powered by a 48V system. That’s a step above the 500W motors commonly found on many budget fat-tire bikes and noticeably stronger off the line.

Acceleration & Everyday Riding

With the bike set to its higher motor speed mode, acceleration is brisk, especially for a compact 20" fat-tire bike. The smaller wheel diameter gives the motor a leverage advantage, so you get a torquey, punchy feel rather than a lazy roll-up to speed.

Most riders can expect:

• Low PAS levels (1–2): Gentle push for relaxed cruising around 10–15 mph, good for bike paths and riding with kids.
• Mid PAS levels (2–3): Comfortable 16–20 mph cruising on flat ground with light pedaling.
• High PAS / top motor setting: Approaching the advertised 24–25 mph range on flat sections, as long as you’re contributing some pedaling effort.

Throttle-only performance is naturally slightly lower, but you should still see solid low-20 mph speeds on level terrain with sufficient battery.

Hill-Climb Expectations

Spacewalk markets the M7 as having plenty of power for typical neighborhood hills, and that claim makes sense given the specs. A 750W/1500W hub with 20" tires and 48V battery generally provides enough torque to tackle moderate grades without drama for riders under the 264 lb payload limit.

You can expect:

• On short, steep hills, using throttle plus pedaling in a low gear is the best combination.
• On long gradual climbs, PAS 2–3 and moderate pedaling should maintain 12–16 mph for average-weight riders.
• Heavier riders will still make it up, but speeds will drop more noticeably on the steepest sections.

The motor does make itself heard under heavy load, but it’s the typical electric whir from a geared hub—audible, but not obnoxious.

Battery, Range & Charging

The M7 uses a 48V 15Ah removable lithium-ion battery. That translates to roughly 720Wh of capacity, which is above average in this price range and a nice step up from the 10–12Ah packs seen on many value bikes.

Claimed vs. Realistic Range

Spacewalk’s marketing claims that this battery can deliver up to 50 miles on throttle and up to 70 miles with pedal assist in optimal conditions. Some listings also provide more conservative numbers (around 37 miles pure electric and 55 miles assist), but the general message is that the M7 is built for longer rides, not just short hops.

In real-world use, most riders should plan for:

• 25–35 miles if you ride mostly on throttle, full power, and tackle some hills
• 35–45+ miles if you stick to mid PAS levels, pedal consistently, and ride mainly on flat or rolling terrain

Factors that heavily influence range include rider weight, tire pressure, how often you accelerate hard from a stop, and ambient temperature (cold weather always reduces range).

Charging & Battery Handling

The battery can be charged on or off the bike. A side-mounted key lock lets you pop it out of the frame in a few seconds. Typical charge time from low to full with the included charger is in the 4–6 hour range, which is standard for a 48V 15Ah pack.

The lock mechanism and handle design look straightforward. As with any removable battery, it’s wise to support it with the other hand when pulling it out to avoid sudden drops.

Overall, for a compact fat-tire bike, the M7’s battery size is one of its biggest selling points.

Ride Comfort & Handling

Comfort

Comfort is where the M7 really leans in. The bike layers several elements to soak up bumps:

• Front suspension fork
• Dual rear coil shocks mounted near the back wheel
• A large, padded bench saddle
• 20" x 4" fat tires that can be run at lower pressures for extra cushioning

This four-point approach is clearly aimed at riders who deal with rough roads, gravel, and off-pavement routes. On typical urban and suburban surfaces—expansion joints, potholes, brick or cobblestone sections—the suspension and fat tires work together to keep impacts blunt and manageable rather than sharp.

The upright riding position also helps. The handlebar sits relatively high, and the bench seat allows you to shift slightly forward or backward until you find a sweet spot. Riders around 5'5"–5'10" are likely to feel the most “naturally at home” without tweaking anything. Taller riders may want to angle the handlebar a bit back toward them.

Handling & Stability

With its short wheelbase and 20" wheels, the Spacewalk M7 feels nimble at low speeds. U-turns in narrow streets or navigating tight parking lots are easier than on long-wheelbase 26" fat-tire bikes.

At moderate speeds (15–20 mph), the bike feels planted thanks to the fat tires and low battery placement. At higher speeds near its top end, the bike still tracks reasonably straight, but riders should remember it’s a compact frame: quick steering that feels fun at 10–15 mph can feel a bit lively at 25 mph, especially on rough pavement.

The fat tires offer excellent grip on dirt, gravel, sand, and packed snow when run at appropriate pressures. They also provide a bit of “float” over soft surfaces, making beach or snow-path riding much more manageable than on standard 2" tires.

Brakes & Safety Features

The M7 uses mechanical disc brakes front and rear, paired with standard rotors. Mechanical discs are easy to adjust and maintain with basic tools, though they don’t offer the same one-finger power and modulation of hydraulic systems. For the speed and weight of the bike, properly adjusted mechanical discs are adequate, but heavier riders or those frequently descending long hills might wish for a hydraulic upgrade in the future.

On the safety front, Spacewalk has done more than many budget competitors:

• Bright front headlight integrated near the front fork
• Rear tail light with brake-light function for better visibility
• Left/right turn signals controlled from the bars, which is rare at this price
• Horn for alerting pedestrians and cars
• Reflectors in the wheels and on pedals
• Fat tires that provide strong traction in varied conditions

Some listings for the related M6 note that the system is designed with UL 2849-compliant components, which is becoming an essential safety baseline in the e-bike industry.

Stopping distances will depend heavily on brake tuning and rider weight. As always, new owners should bed in the pads properly and check cable tension after the first few rides.

Controls, Display & Riding Modes

The cockpit on the M7 is straightforward but fairly full-featured:

• Backlit LCD display in the center showing speed, PAS level, battery bar, and trip/odometer info.
• PAS / mode buttons near the left grip, including a power button (“M” button) used to toggle display parameters and turn the bike on or off.
• Separate rocker or button cluster for controlling the headlight, turn signals, and horn.
• Right-side throttle for pure-electric riding.
• Shimano shifter for the 7-speed mechanical drivetrain.

Riding Modes

You get three main riding modes:

1. Pure Electric Mode – Use the throttle only, no pedaling required. Great for quick errands, hills when you’re tired, or just cruising.
2. Pedal Assist (PAS) Mode – You pedal, and the motor kicks in proportionally based on the PAS level, helping you maintain speed and making long rides feel easier.
3. Pedal-Only Mode – Turn the motor off entirely and ride it like a conventional 7-speed bike. This is useful for exercise or if you’re trying to conserve battery for later.

The PAS tuning on bikes in this class typically ramps power noticeably between levels. Most riders end up using levels 2 and 3 as their default for a balance of speed and efficiency, dipping into higher settings only when needed for hills or headwinds.

The display is simple but readable, especially at night. In bright sunlight, you may need to angle it slightly to avoid glare, but the high-contrast numerals keep things legible.

Fit, Sizing & Adjustability

Spacewalk recommends the M7 for riders 5'5" and taller, and that lines up with the basic geometry shown in the size chart:

• Total length: 63.0"
• Handlebar height: 44.0"
• Seat height: about 22.8" from the ground
• Stand-over height: roughly 30" from the floor to saddle area
• Wheelbase: 40.2"

The long bench seat gives you a bit of fore-aft flexibility; you can slide forward for a more upright posture or back for a slightly stretched, moped-like stance. However, the seat height itself is not extremely tall, and the seatpost adjustment range is limited compared with a classic bicycle saddle and post.

For riders around 5'5"–5'10":

• Expect an easy flat-foot reach at stops.
• Pedaling ergonomics will be acceptable for casual riding and light exercise.

For riders above ~6'0":

• You might notice more knee bend and a slightly cramped pedaling position on longer rides.
• The bike still works great as a throttle-dominant mini moto, but if you prioritize efficient pedaling, a larger frame may be more comfortable.

Because the handlebar can be angled and the seat can move a bit, there is some tuning flexibility—but not as much as a full-size commuter bike with adjustable stem and tall seatpost.

Assembly & Out-of-the-Box Experience

Spacewalk ships the M7 about 90% pre-assembled. You’ll typically need to:

• Install the front wheel and secure the quick-release or axle nuts
• Attach and align the handlebar
• Install the pedals (pay attention to left/right threading)
• Mount the front headlight if it’s not pre-installed
• Adjust the seat position and tighten clamps
• Check brake alignment and gear shifting

For someone who has never built a bike before, plan around 45–90 minutes of careful work. The included tools are usually enough, but having your own Allen-key set and a proper pedal wrench makes the job smoother.

As with any direct-to-consumer e-bike, it’s important to:

• Check that the wheels are properly seated in the dropouts
• Inspect brake caliper alignment so the rotors don’t rub
• Confirm that all major bolts (stem, handlebar, axle nuts, rack mounts) are snug but not over-tightened

Riders unfamiliar with bike assembly may want their local shop to do a quick safety check or initial tune-up. It’s a small cost for peace of mind, especially when you’re dealing with higher speeds and heavier weights than a standard pedal bike.

What’s Included in the Box?

In the box, you can expect:

• Spacewalk Electric Bike M7 (mostly pre-assembled)
• 48V 15Ah removable battery
• Battery charger
• Front and rear fenders
• Integrated headlight and rear tail light with wiring pre-run
• Rear cargo rack
• Horn and basic reflector set
• Kickstand
• Small toolkit and user manual

Our Take on the Package

For a sub-$700 e-bike, the accessory package is impressively complete. You don’t need to immediately buy a rack, fenders, or lights—all the essentials for daily riding are already on the bike.

The only common “wish list” items would be a higher-end saddle (comfort is subjective), a better bell or louder horn if you ride in noisy traffic, and possibly upgraded brake pads or even a hydraulic brake kit down the road if you push the bike hard on steep terrain. But out of the box, you’re ready to commute, explore trails, or just cruise the neighborhood.

Pros & Cons

Pros	Cons
Powerful 750W hub motor (1500W peak) with lively acceleration for a small bike	Heavy (~85 lb) – not ideal for carrying upstairs or loading frequently
Generous 48V 15Ah battery offers better-than-average range in this price bracket	Mechanical disc brakes rather than hydraulic; adequate but not premium
Four-point suspension + fat tires deliver a very cushy ride on rough surfaces	Compact frame can feel small for riders over ~6'0", especially for long pedaling sessions
Integrated headlight, tail light, brake light, turn signals, and horn for strong safety package	Peak power and top speed may exceed some local Class-1/2 regulations
Rear rack (rated around 55 lb) increases utility for commuting and errands	Basic suspension components; not designed for big jumps or aggressive off-road riding
Affordable price for the power and features
Compact 20" wheels make the bike nimble and easier to store than full-size fat-tire models

How the Spacewalk M7 Compares to Alternatives

To put the Spacewalk M7 into context, it helps to compare it with a few popular alternatives in the compact fat-tire segment.

vs. Heybike Ranger S

The Heybike Ranger S is a 20" x 4" folding fat-tire e-bike with a 750–1000W rear hub motor (up to 1400–1800W peak depending on version), hydraulic brakes, and a 48V 14.4Ah battery. It’s designed as a more feature-rich, premium option with folding capability and UL-certified battery system.

• Ranger S advantages: Folding frame, hydraulic brakes, often more refined components, and a well-known brand with broad dealer support.
• M7 advantages: Significantly lower price and simpler, non-folding steel frame that may feel stiffer under heavier loads.

If you prioritize a folding frame and premium feel—and your budget allows—the Ranger S is attractive. If you just want an affordable, rugged mini-moto style bike and don’t care about folding, the M7 saves you a lot of money.

vs. Lectric XP 3.0

The Lectric XP 3.0 is one of the most popular 20" folding fat-tire e-bikes, with a 500W hub motor, 48V 10.4Ah battery, and a reputation for great value.

• XP 3.0 advantages: Massive community support, proven reliability, strong brand reputation, and a folding frame for easy transport.
• M7 advantages: More powerful motor (on paper), larger 48V 15Ah battery, and more complete lighting/turn-signal package in a non-folding frame.

Commuters who need a folding bike for storage or train travel may lean toward Lectric. Riders who want more punch and don’t need folding may find the M7 more exciting for the money.

vs. Juiced RipRacer

The Juiced RipRacer is a fun-sized fat-tire e-bike with a 750W motor, 52V 15.6Ah battery (around 800+ Wh), and hydraulic brakes. It’s tuned for high performance with a 28 mph top speed and robust components.

• RipRacer advantages: More powerful 52V system, hydraulic brakes, higher top speed, and strong brand support—at a higher price.
• M7 advantages: Much lower price and a more relaxed, cushy all-terrain setup that’s friendlier for budgets and new riders.

If you’re chasing maximum performance and don’t mind spending more, the RipRacer is a beast. If your priority is value and comfort, the M7 is easier on the wallet while still offering plenty of fun.

Common Questions About the Spacewalk M7

Final Verdict – Should You Buy the Spacewalk Electric Bike M7?

Score: 8.3 / 10 (value-focused compact fat-tire e-bike)

The Spacewalk Electric Bike M7 hits a sweet spot for riders who want a compact, fun-to-ride fat-tire e-bike with real power and comfort—but don’t want to pay premium prices. The combination of a 750W/1500W peak motor, 48V 15Ah battery, 4-point suspension, and 20" x 4" tires means it can handle a wide range of terrain while keeping the ride smooth and confidence-inspiring.

You’re getting strong acceleration, good realistic range, integrated lights with turn signals, and a practical rack in a package that looks like a mini moto and rides like a very cushy e-bike. The main compromises are its weight, mechanical brakes, and compact fit for taller riders. For people who need a lightweight commuter or a strictly regulation-compliant Class 1 bike, this isn’t the right tool.

But if your priority is value, comfort, and fun—short-to-medium-distance rides, neighborhood exploring, snow and sand adventures, and weekend trails—the Spacewalk M7 deserves a serious look.