The CEMOTO B28 27.5" Electric Mountain Bike is designed for riders who want a versatile electric mountain bike that can handle everyday commuting, recreational riding, hills, gravel paths, and light off-road adventures. With a 500W brushless motor, 48V 13Ah lithium-ion battery, 27.5-inch all-terrain tires, Shimano 7-speed gearing, suspension fork, disc brakes, and a claimed top speed of up to 20 MPH, the CEMOTO B28 combines practical transportation with trail-ready features.
The B28 is built around a 27.5-inch wheel platform, giving it a useful balance between stability and maneuverability. Its all-terrain 27 x 2.35-inch tires provide a wider footprint than typical road-bike tires, while the suspension fork is designed to help smooth out rough pavement, gravel, dirt paths, and uneven terrain.
Another major attraction is the price. CEMOTO currently lists the B28 at a sale price of $699, reduced from a listed regular price of $1,299. The product page also currently advertises free shipping, a two-year warranty, and a 15-day return policy. Pricing and promotional terms can change, so buyers should check the latest listing before ordering.
For shoppers looking for additional savings, the CEMOTO Discount Code RICHARDSTEPHENS provides 8% off according to the current promotion for this review.
Overview
The CEMOTO B28 is positioned as an electric mountain bike that can serve multiple purposes. It has enough motor assistance for daily transportation while retaining features that make it suitable for recreational off-road riding.
Its 500W brushless motor provides the primary source of electric assistance. CEMOTO lists a top speed of up to 20 MPH, while the company advertises a maximum range of more than 55 miles per charge. Real-world range will vary based on rider weight, terrain, hills, riding mode, wind, temperature, tire pressure, and how frequently the motor is used.
The 48V 13Ah battery provides the energy needed for longer rides, while the Shimano 7-speed drivetrain gives the rider mechanical gearing options when pedaling. This combination makes the B28 more flexible than a single-speed electric bike.
The B28 also includes a color LCD display that shows information such as speed, mileage, battery power, riding information, and system warnings. Controls mounted around the handlebar provide access to the lighting, gearing, throttle, and other functions.
Check Latest Price - CEMOTO B28 27.5" Electric Mountain Bike
CEMOTO B28 Key Specifications
- Model: CEMOTO B28 / EB28
- Bike Type: Electric mountain bike
- Motor: 500W brushless motor
- Battery: 48V 13Ah lithium-ion
- Advertised Range: 55+ miles maximum
- Claimed Top Speed: Up to 20 MPH
- Wheels: 27.5-inch
- Tires: 27 x 2.35-inch all-terrain tires
- Front Suspension: Alloy suspension fork
- Brakes: Disc brakes
- Drivetrain: Shimano 7-speed
- Display: 4-inch color LCD
- Frame: Aluminum 6061
- Load Capacity: 120 kg / approximately 265 lbs according to the detailed specification table
- Listed Payload Feature: Product highlights also advertise up to 300 lbs
- Charger: 54.6V 2A UL charger
- Charging Time: Approximately 6–7 hours
- Bike Weight: Approximately 33 kg net / 38 kg gross shipping weight
- Riding Modes: Three riding modes
- Warranty: 2 years listed on product page
- Return Period: 15 days listed on product page
One specification worth clarifying is the listed payload. The product highlights show a 300-lb payload, while the detailed specification table lists a 120 kg load capacity, which is approximately 265 lbs. Prospective buyers should confirm the applicable maximum load with CEMOTO before purchase, particularly if rider and cargo weight are close to either figure.
Design and Build Quality
The CEMOTO B28 uses an Aluminum 6061 frame, providing a practical combination of structural strength and weight management for an electric mountain bike. The frame is designed around 27.5-inch wheels and wider all-terrain tires, giving the bike a substantial stance on mixed surfaces.
The 27.5-inch wheel size is a good fit for a versatile mountain eBike. Compared with smaller wheels, 27.5-inch wheels can roll more easily over small obstacles and uneven terrain while remaining relatively maneuverable. The 2.35-inch tire width also gives the B28 additional traction compared with narrow commuter tires.
CEMOTO describes the frame as high-tensile tubing in the product's feature section, while the detailed specifications identify the frame material as Aluminum 6061. The product page also emphasizes durability and resistance to vibration and impacts associated with rough riding.
The B28 has a traditional mountain-bike appearance with a central battery, front suspension fork, rear-mounted rack, integrated lighting, and knobby all-terrain tires. It looks equally appropriate on a paved bike path or a gravel trail.
Motor Performance
The 500W brushless motor is the main performance component of the CEMOTO B28. A 500W system provides considerably more assistance than entry-level eBikes with smaller motors, making the B28 better suited to hills, heavier riders, and mixed-terrain use.
CEMOTO lists a top speed of 20 MPH. Actual performance will vary according to rider weight, terrain, battery charge, weather, and other conditions. The motor should be viewed as a source of assistance rather than a guarantee of a particular speed in every situation.
The B28 also offers three riding modes, allowing the rider to choose how the electric system responds during a ride. Lower assistance can help conserve battery energy, while higher assistance can make hills and longer rides less physically demanding.
The combination of the motor and Shimano 7-speed drivetrain is particularly useful. Riders can select a lower mechanical gear when climbing or a higher gear when traveling at a faster pace on flatter terrain. This gives the rider more control over how much work comes from the motor versus the pedals.
Battery and Range
The CEMOTO B28 uses a 48V 13Ah lithium-ion battery. The battery provides a good balance between capacity and overall bike design, making the B28 suitable for daily transportation as well as recreational rides.
CEMOTO advertises 55+ miles per charge at maximum. This figure should be treated as an upper-range estimate rather than a guarantee of real-world riding distance. CEMOTO itself notes that range can be affected by factors including rider weight, incline, and pedal-assist level.
Riders who stay on flat pavement and use lower assistance levels should generally consume less battery energy than riders who repeatedly climb hills or use high levels of motor assistance. Tire pressure, temperature, wind, cargo, and riding speed can also affect range.
The listed 54.6V 2A UL charger requires approximately six to seven hours for a full charge. That makes overnight charging a practical option for riders using the B28 for regular commuting or errands.
Suspension and Off-Road Capability
The B28 comes equipped with an alloy suspension fork designed to absorb some of the impacts encountered on rough surfaces. Suspension can make a noticeable difference when moving from smooth pavement onto gravel, dirt, roots, cracks, and uneven paths.
The bike's 27 x 2.35-inch all-terrain tires complement the suspension system. Their wider profile provides additional contact with the ground and is better suited to mixed surfaces than a narrow road tire.
The B28 should be viewed as a versatile electric mountain bike rather than an extreme downhill or technical-trail machine. It is well suited to recreational trails, gravel roads, dirt paths, and general off-road exploration, but riders should choose terrain appropriate for the bike and its components.
Braking and Control
The CEMOTO B28 uses disc brakes to provide stopping power. Disc brakes are particularly useful on an eBike because they can provide consistent braking performance across a variety of conditions.
The bike's wider tires and front suspension also contribute to rider control. The combination allows the B28 to maintain a planted feel when riding over imperfect surfaces.
As with any electric mountain bike, riders should become familiar with braking performance before attempting steeper trails or higher-speed descents. Proper braking technique and appropriate protective equipment are important when riding off-road.
Shimano 7-Speed Drivetrain
The Shimano 7-speed drivetrain gives the CEMOTO B28 a useful range of mechanical gearing. Riders can shift into an easier gear when climbing and use higher gears when traveling on flatter terrain.
Having seven gears is especially useful on an electric mountain bike because terrain can change quickly. Rather than relying entirely on the 500W motor, riders can select an appropriate gear and continue pedaling efficiently.
The shifter is positioned on the handlebar for convenient access. CEMOTO also lists a finger-shift throttle among the handlebar controls, giving riders another way to manage electric assistance.
LCD Display and Controls
The B28 features a 4-inch color LCD display. The backlit display provides information such as speed, mileage, battery power, riding data, and system warnings.
The display also provides access to function settings, making it easier for riders to monitor the bike while traveling. A clear display is especially useful on longer rides because the rider can quickly check remaining battery power and riding information.
The handlebar area also includes controls for the front and rear lights, Shimano gearing, throttle, bell, and braking functions. The overall layout is designed to keep frequently used controls within easy reach.
Lighting and Everyday Practicality
The CEMOTO B28 includes front and rear lighting, adding practical visibility for riders who commute or ride during lower-light conditions. The product page specifically shows controls for turning the front and rear lights on and off.
The bike also comes with or is currently promoted with useful accessories depending on the order promotion. CEMOTO's product page states that orders can receive free fenders, a rear rack, phone holder, and bottle holder, with a stated total value of $206. Promotional packages can change, so buyers should verify the current included accessories at checkout.
The rear rack is particularly useful for commuting and everyday errands. Adding a bag, pannier, or other compatible cargo solution can make the B28 more practical for transportation beyond recreational riding.
Comfort and Riding Position
The B28 is designed around a conventional mountain-bike riding position. Its suspension fork and wider tires help reduce the harshness of rough surfaces, while the 27.5-inch wheels provide a balance between rolling ability and maneuverability.
For longer rides, the combination of electric assistance, multiple gears, suspension, and all-terrain tires means riders do not have to rely entirely on physical effort. The motor can provide assistance when fatigue begins to set in or when a hill becomes challenging.
The B28's versatility is one of its strongest qualities. It can be used for commuting during the week and recreational trail riding on the weekend without requiring two separate bikes.
CEMOTO B28 Pros
- 500W brushless motor: Provides useful power for commuting, hills, and recreational riding.
- 20 MPH claimed top speed: Gives the B28 practical speed for everyday riding.
- 55+ mile advertised maximum range: Provides long-distance potential under favorable conditions.
- 48V 13Ah battery: Offers a solid balance between capacity and bike size.
- 27.5-inch wheels: Provide a good combination of stability and maneuverability.
- 2.35-inch all-terrain tires: Suitable for pavement, gravel, dirt, and mixed surfaces.
- Shimano 7-speed drivetrain: Gives riders useful mechanical gearing options.
- Suspension fork: Helps smooth rough pavement and light off-road terrain.
- Disc brakes: Provide dependable stopping performance.
- Color LCD: Makes speed, battery, mileage, and riding information easy to monitor.
- Aluminum 6061 frame: Provides a practical frame material for an electric mountain bike.
- Rear rack: Adds utility for commuting and carrying gear.
- 8% discount: Discount code RICHARDSTEPHENS can provide additional savings when eligible.
CEMOTO B28 Cons
- Heavy: The listed net weight is approximately 33 kg, or about 73 pounds.
- Long charging time: The standard charger takes approximately six to seven hours.
- Range varies: The advertised 55+ mile maximum will depend heavily on riding conditions and assistance level.
- Not designed for extreme mountain riding: The B28 is better suited to general trails, gravel, dirt paths, and recreational off-road use than highly technical terrain.
- Payload specification should be clarified: The product page highlights 300 pounds while the detailed specification table lists 120 kg, approximately 265 pounds.
Who Should Consider the CEMOTO B28?
The CEMOTO B28 is a strong fit for riders looking for a multipurpose electric mountain bike rather than a specialized trail machine. Its combination of a 500W motor, 27.5-inch wheels, suspension fork, all-terrain tires, and Shimano 7-speed gearing gives it the flexibility to handle both everyday transportation and recreational riding.
Commuters can take advantage of the electric motor and rear rack, while recreational riders can use the suspension and wider tires on gravel and dirt paths. The 55+ mile maximum advertised range also makes the B28 appealing to riders who want to take longer rides without constantly thinking about charging.
Riders should consider the bike's approximately 73-pound net weight before purchasing. While the weight is reasonable for a fully equipped electric mountain bike with a 500W motor and battery, it can make lifting the bike onto a vehicle or carrying it upstairs more difficult.
Final Verdict
The CEMOTO B28 27.5" Electric Mountain Bike combines practical commuting features with the equipment needed for recreational off-road riding. The 500W brushless motor provides useful assistance, while the 48V 13Ah battery gives the bike a claimed maximum range of more than 55 miles under favorable conditions.
The 27.5-inch wheels and 2.35-inch all-terrain tires are a particularly good match for the B28's versatile mission. They provide stability on pavement while remaining capable of handling gravel and dirt paths. The suspension fork adds another layer of comfort when surfaces become rough.
The Shimano 7-speed drivetrain is another valuable feature because it gives riders control over their pedaling effort. Combined with electric assistance, it makes the B28 suitable for both flatter commutes and moderate hills.
There are a few things buyers should consider, particularly the bike's approximately 73-pound weight and the six- to seven-hour charging time. The difference between the advertised 300-lb payload and the detailed 120 kg specification is also something worth confirming directly with CEMOTO before purchase if maximum carrying capacity is important.
Overall, the B28 is designed to be a versatile 27.5-inch electric mountain bike for riders who want one eBike that can cover commuting, neighborhood riding, gravel paths, and recreational trails. With the CEMOTO Discount Code RICHARDSTEPHENS offering 8% off when eligible, it can also provide an additional way to reduce the purchase price.
Buy CEMOTO B28 27.5" Electric Mountain Bike - Use Code RICHARDSTEPHENS for 8% Off
CEMOTO B28 FAQ
How powerful is the CEMOTO B28?
The CEMOTO B28 uses a 500W brushless electric motor. CEMOTO lists a top speed of up to 20 MPH.
How far can the CEMOTO B28 travel on one charge?
CEMOTO advertises more than 55 miles of maximum range. Actual range depends on rider weight, hills, terrain, riding mode, pedal-assist level, speed, and other conditions.
What size battery does the CEMOTO B28 use?
The B28 uses a 48V 13Ah lithium-ion battery. The listed charger is a 54.6V 2A UL charger.
What size wheels does the CEMOTO B28 have?
The CEMOTO B28 uses 27.5-inch wheels with 27 x 2.35-inch all-terrain tires.
Does the CEMOTO B28 have suspension?
Yes. The B28 features an alloy suspension fork designed to improve comfort and control over rough surfaces.
Does the CEMOTO B28 have Shimano gears?
Yes. The B28 uses a Shimano 7-speed drivetrain.
How long does the CEMOTO B28 take to charge?
CEMOTO lists an approximate charging time of six to seven hours with the supplied 54.6V 2A charger.
What is the CEMOTO B28 weight capacity?
The product highlights advertise a 300-lb payload, while the detailed specification table lists a 120 kg load capacity, approximately 265 pounds. Buyers should confirm the applicable maximum load with CEMOTO before purchase.
What discount code can be used for the CEMOTO B28?
The RICHARDSTEPHENS discount code provides 8% off when the promotion is applicable. Enter the code during checkout and confirm that the discount is applied before completing the purchase.
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