If you’re looking for an electric bike for rough terrain, the isinwheel M60 is a natural choice. With 26×4.0-inch tires, a removable 48V battery, and a manufacturer-specified range of 70 to 105 km, this fat-tire e-bike offers plenty of features for under 900 euros. In our isinwheel M60 review, we show how this all-terrain bike performs in real-world conditions—and if you’re looking for an overview of other options, check out our roundup of the best e-bikes.
The isinwheel M60 is a fat-tire pedelec with a low-step frame, a rear-wheel motor (250 W continuous rated power, up to 750 W peak power, 86 Nm torque), and a 48V 13Ah battery. In Germany, motor assistance is limited to 25 km/h; when unthrottled, speeds of up to 45 km/h are possible—though registration is not required for this in Germany.
isinwheel M60 – Technical Specifications & Package Contents
| Specifications | Value |
|---|---|
| Motor | 250 W continuous rated power, up to 750 W peak power, 86 Nm torque (rear wheel hub, software-limited) |
| Assistance up to | 25 km/h (throttled) / up to 45 km/h (unthrottled, not street-legal in Germany) |
| Battery | 48 V, 13 Ah, 624 Wh nominal / 612 Wh usable, approx. 4.5 kg, removable, UL2849-certified, with charge level indicator and anti-theft lock |
| Range (manufacturer) | 70 to 105 km, depending on the assist level |
| Range (in practice) | approx. 40–70 km with mixed everyday use, significantly less with heavy throttle use and off-road |
| Charging time | 7–8 hours, no fast charging (2-A charger) |
| Tires | 26 × 4.0-inch fat tires |
| Frame | Low-step (step-through), steel |
| Suspension | Front suspension fork (approx. 100 mm travel, with lockout), no rear suspension—only a suspension seat |
| Brakes | Mechanical 160-mm disc brakes front/rear with motor cut-off (no hydraulic brakes) |
| Maximum weight capacity | up to 150 kg |
| Weight (bike) | approx. 34.4–34.5 kg |
| Water resistance | IPX4 (splash-proof; not suitable for heavy rain, long-term outdoor storage, or high-pressure washers) |
| Connections | USB charging port on the display (U.S. version: USB-C) |
| Lighting | 220-lumen projector headlight; taillight powered by its own AAA batteries (not powered by the bike’s battery) |
| Warranty | Details vary by sales channel—be sure to document them before purchasing |
| Return policy | 30 days (according to the manufacturer’s online store) |
| Price (at the time of testing) | Starting at approx. 878 € (MSRP 1,099.99 €), use the coupon code BT55 to save 55€ |
The isinwheel M60 arrives in the box about 80 percent pre-assembled, well-padded with Styrofoam inserts and secured with cable ties. Included are an instruction manual, an open-end wrench, an Allen wrench, a reversible screwdriver, a pump, two battery wrenches, and a charger with an LED status indicator. The rack and rear fender are already pre-assembled; all that remains for final assembly are the handlebars, front wheel with fender, pedals, and the front and rear lights—if you’re unsure, have a specialist shop check the final assembly just to be safe.
Design & Workmanship
Visually, the isinwheel M60 features the classic fat bike layout, combined with a low step-through frame—convenient for anyone who wants to hop on without much effort, such as when carrying a backpack or groceries. The steel frame looks higher quality than the price would suggest; the cable routing is neat, and the battery is discreetly integrated into the frame. The plastic pedals and drivetrain (unknown cassette, Shimano Tourney rear derailleur) are somewhat simpler in design—sufficient for everyday use, but clearly positioned at the lower end of the price range.
One clear drawback is the weight: At around 34.5 kg, the M60 is among the heavier e-bikes in its class. This is particularly noticeable when carrying it up stairs, maneuvering it in the bike storage room, or loading it onto a rear bike rack—anyone who has to carry or load the bike regularly should take this into account beforehand.
The 26×4.0-inch tires are even wider than those on most other fat bikes, which typically make do with 3-inch tires. They provide traction on sand, gravel, dirt roads, and light snow—making the bike significantly more stable than city e-bikes with narrow tires. The trade-off: higher rolling resistance and more tire noise on asphalt, plus slightly sluggish steering response in tight turns.
Real-World Test: Handling and Range
The motor’s response is powerful: Even in the limited 250-W version, the full torque of 86 Nm is maintained, as only the software is limited—the hardware is identical to the 750-W version. It handles inclines with ease, even with a heavier rider and on steeper terrain. However, it does not feature a torque sensor or a mid-drive motor—the design is geared more toward comfort than performance and is not intended for sporty purists or true trail MTB riding.
One peculiarity stands out: The motor responds with a noticeable delay of about 8 to 10 seconds when pedaling resumes for the first time after using only the throttle (which is not permitted in Germany anyway and should therefore not be installed). At high speeds (42 km/h and above), the pedals also start to “spin freely” without any noticeable resistance—an indication that the cadence sensor isn’t working optimally with the drive system. However, this is also not relevant in Germany, as you should not remove the speed limiter to remain within legal limits.
As for range, the manufacturer’s specification of 70 to 105 km is fairly accurate. While you’ll tend to get around 60–70 km on predominantly off-road and mountain routes, the range can easily exceed 100 km with mixed use. Of course, this also depends somewhat on the rider’s weight, but we were very satisfied with the range.
Brakes
The mechanical 160-mm disc brakes are somewhat underpowered for the bike’s weight and top speed. Unlike hydraulic systems, they offer only limited precision in modulation—which becomes noticeable especially in wet conditions or when carrying a heavy load.
Comfort and Suspension
Despite the lack of a rear suspension, ride comfort on normal surfaces is surprisingly good—the combination of thick tires, a suspension seatpost, and a front suspension fork compensates for a lot and ensures a smooth, “plush” ride on cobblestones, gravel, and rough asphalt. On real off-road terrain, with large roots or deep ruts, the system reaches its limits: without rear suspension, the lack of it becomes clearly noticeable there.
Other performance areas
Display & Controls
The isinwheel M60 does not come with a companion app—controls are handled via the display and buttons on the handlebars (assistance levels, light, horn). The LCD display is easy to read even in direct sunlight, with no flickering of the backlight. It displays speed, battery level, voltage, trip and total kilometers, ride time, and error codes. Handy for everyday use: a walking assist mode at about 6 km/h for pushing the bike up hills or through narrow alleys. There is also a USB charging port on the display.
Lighting
The 220-lumen projector headlight illuminates the path well. The taillight, on the other hand, runs on separate AAA batteries instead of the bike’s battery—this feels less cohesive and means the extra hassle of changing batteries.
Accessories and Maintenance
isinwheel offers optional front and rear cargo baskets as well as saddle bags, which can be used to convert the M60 into a true cargo bike for shopping, commuting, or weekend trips. In everyday use, fat-tire bikes are also easy to maintain with a little basic care: Tire pressure makes the biggest difference in riding comfort; a good starting point for mixed riding is around 1.2 to 1.5 bar. Depending on the weather, the chain should be oiled every 150 to 250 km—more frequently in wet conditions. After the first 80 kilometers, it’s also a good idea to tighten all bolts and check the spoke tension, as components on a new bike tend to settle slightly at first. Since isinwheel operates as a direct-to-consumer brand, buyers should obtain written documentation of warranty and service terms before purchasing—specifications vary depending on the sales channel, and there have been reports of difficult warranty claims in some cases.
Value for Money
At the time of testing, the isinwheel M60 cost around €878 (MSRP €1,099.99). Despite the shortcomings in braking and suspension, the overall verdict remains positive, especially given the low price: For under 900 euros, the M60 offers more features than is typical in this class, including a 30-day return policy in the manufacturer’s online store. Note: Availability is limited at times; the model is occasionally sold out in the official store. In a direct comparison with the Touroll S3 Pro —which was also tested—the M60 scores points primarily for the off-road capability of its thicker tires and its higher payload capacity, but falls short in terms of braking performance, weight, and suspension comfort. If you’re looking for a torque sensor and hydraulic brakes instead, you’ll quickly find yourself in a higher price range—such as with the Fiido Titan —though that’s in a different league altogether.
Frequently Asked Questions About the isinwheel M60
How fast does the isinwheel M60 go in Germany? Motor assistance is legally limited to 25 km/h. Unrestricting it to up to 45 km/h is technically possible, but it is not legal on public roads in Germany without the appropriate approval.
How far can you go on a single battery charge? The manufacturer specifies 70 to 105 km. In practice, this is realistic depending on riding style and terrain.
Are the brakes sufficient? The built-in mechanical disc brakes seem underpowered for the bike’s weight and speed and are less responsive than hydraulic systems—upgrading to better brake pads is recommended.
Is the isinwheel M60 waterproof? No, it’s only splash-proof (IPX4). Continuous rain, unprotected outdoor storage for extended periods, and pressure washers should be avoided.
Conclusion: isinwheel M60 Review
The isinwheel M60 is a fat-tire e-bike that offers plenty of features, a high payload capacity, and decent motor power for its price, but makes clear compromises in terms of weight, brakes, and rear suspension. If you mainly ride on asphalt and easy terrain and value a comfortable low step-through frame, you’ll get a solid everyday bike for under 900 euros. Riders who regularly tackle challenging terrain, ride sportily, or frequently have to carry or load the bike should factor in the weight and brakes from the start.
Recommended for budget-conscious everyday riders and occasional off-roaders who are looking for a comfortable, well-equipped fat-tire e-bike and can live with the heavy weight. Riders who spend a lot of time on challenging terrain, expect maximum braking power, or often have to carry the bike should upgrade or invest in a higher-end or lighter model.
PROS
- High riding comfort thanks to 26×4.0-inch fat tires, front suspension, and spring saddle
- Versatile use: good grip on sand, gravel, dirt roads, and light snow
- Removable 48V/13Ah battery (624 Wh) with integrated charge indicator and anti-theft protection
- Excellent range of up to 100+ km with mixed usage
- High payload capacity of 150 kg – suitable for heavier riders and cargo
- Comprehensive standard equipment: rear rack, fenders, lights, horn, kickstand, Shimano 7-speed drivetrain
- Step-through frame for easy, safe mounting and dismounting in urban traffic
- Informative LCD display with error codes and walk assist (approx. 6 km/h)
- Sturdy steel frame and solid first impression for around $880
- Extensive package includes tools, pump, charger, spare parts, plus 30-day return policy
CONS
- Very heavy weight (approx. 34.5 kg) – unwieldy when carrying, on stairs, or bike racks
- Mechanical instead of hydraulic disc brakes – undersized for the weight and top speed
- Long charging time of 7 to 8 hours with no fast-charging option
- Less agile on pavement: higher rolling resistance and more tire noise from fat tires
- Delivered partially assembled – final assembly is time-consuming
- Rear light runs on separate AAA batteries instead of the main battery
- Only IPX4 splash resistance
- No torque sensor or mid-drive motor
- Inconsistent warranty information as a direct-to-consumer brand
- Limited availability at times
Conclusion
Comfortable fat-tire e-bike with strong range, extensive standard equipment, and fair pricing. High weight, mechanical brakes, and inconsistent warranty information should be considered beforehand.
