Addmotor M-380 Tandem eTrike
Addmotor's product pageThe Addmotor M-380 Tandem eTrike is an electric bike with a 750 W motor and a stated top speed of 20 Mph.
Last updated: 11 September 2026
Motor and performance
- Payload, rider and cargo combined
- 550 lbs
550 lbs in total: up to 500 lbs for two riders, 50 lbs in the basket
“M-380 Tandem offers a total capacity of 550 lbs. This includes up to 500 lbs for the two riders and 50 lbs in the basket, ensuring maximum stability.”
Source: addmotor.com/question_p439
500 lbs in total: up to 350 lbs for passengers, 150 lbs for cargo
“The M-380 Tandem eTrike has a maximum payload capacity of 500 lbs, which includes up to 350 lbs for passengers and 150 lbs for cargo. If the total weight of passengers reaches 500 lbs, no additional cargo can be carried.”
Source: addmotor.com/question_p439
- Motor
- 750 W
- Top speed
- 20 Mph
- Range, single battery
- Up to 65 miles
- Range, dual battery
- 130 Miles (2 Battries)
- Payload capacity
- 550 LBS
350 lb riders + 150 lb cargo
“TANDEM TRIKE M-380 Length 96" 350+150 lbs Rear Basket 20Ah UL-Certified 20Ah UL-Certified”
Source: cdn.shopify.com/s/files/1/0530/5968/2468/files/Addmotor_Catalog_2026.pdf?v=1778809673
- Assist sensor
- Torque Sensor(Front Pedal)
- Pedal assist
- 7 Level Pedal Assist
- Controller
- Addmotor 25A Controller
- Throttle
- Variable Speed Control - 1/2 Twist Throttle
- Vehicle class
- 20 MPH, aligning with the Class 2 limit
- Rear differential
- Yes — a speed differential
- Independent pedals
- Yes
Disputed
“M-380 Tandem offers a total capacity of 550 lbs. This includes up to 500 lbs for the two riders and 50 lbs in the basket”
Source: addmotor.com/question_p439
The same document also states
“750W Rear-Drive Motor”
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“A simpler setup handling everyday local riding and errands with a reliable range of up to 65 miles”
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
Disputed
Source: addmotor.com/products/m-380-tandem-etrike
Other sources state
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“M-380 tandem trike has a 750W rear-drive motor, allowing it to reach a max. speed of 20 MPH, which aligns with the U.S. speed limit for Class 2 e-bikes. But actual speed may vary depending on factors such as terrain, rider weight, cargo load”
Source: addmotor.com/question_p439
“It also has a speed differential to enhance maneuverability and ensure safe turning around tight corners.”
Source: addmotor.com/blog/why-choose-the-addmotor-m-380-tandem-trike-for-adults
“Pedal at your own pace. Front and rear pedals operate independently on this two person electric trike.”
Source: addmotor.com/products/m-380-tandem-etrike
Battery and charging
- Charging two packs
- Not at the same time
- Battery system
- 48V*20Ah UL-certified Battery / 20 Ah Bulit-In Battery
- Charger
- 48V*2.0A
“the M-380 has two independent batteries, which cannot be charged simultaneously. You will need to charge each battery separately”
Source: addmotor.com/question_p439
Source: addmotor.com/products/m-380-tandem-etrike
“48V*2.0A 5 Pins, US Standard DC Charger, 5 Pins With Auto Magnetic Suction”
Source: addmotor.com/products/m-380-tandem-etrike
Brakes and safety
- Brakes
- Tektro Mechanical Disc Brakes On Each Wheel
- Parking brake
- Yes
- Headlight
- Powered by the main battery
- Taillight
- Powered by the main battery, with a brake-light function
- Can be ridden solo
- Yes
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“Powered By Main Battery And Controlled By the uneven buttons”
Source: addmotor.com/products/m-380-tandem-etrike
“Powered By Main Battery And Controlled By Display with Brake Light Function”
Source: addmotor.com/products/m-380-tandem-etrike
“Can the M-380 be ridden solo? Yes. Although designed as a two seater electric trike for shared trips, the balanced center of gravity and inherent stability of this tandem 3 wheel bike allow a single front rider to steer and operate it safely.”
Source: addmotor.com/products/m-380-tandem-etrike
Frame and components
- Rear seat backrest
- Yes — the rear seat has one
- Rear footrest
- Wooden, for the rear rider
- Cranksets
- Two freewheel cranksets
- Frame
- 6061 Aluminum Alloy Frame
- Front fork
- Oil Spring Fork with 80mm of Travel
- Tires
- 24" X 4.0" F & 20" X 4.0" R
- Rims
- Aluminum Double Wall
- Chain
- KMC Stainless Chain
- Gearing
- Shimano 7-Speed
- Derailleur
- Shimano 7 Speed Rear Derailleur
- Saddle
- With backrest
- Display
- Addmotor 5-Inch LCD Display
- Number of wheels
- Three
“The front seat is adjustable and easy to mount, but it's the rear seat that stands out. It includes a backrest, which makes it perfect for someone who might need extra support, like older adults, riders recovering from injury, or teenagers who want to join but don't have the strength for long rides.”
Source: addmotor.com/blog/why-choose-the-addmotor-m-380-tandem-trike-for-adults
“There's also a wooden footrest for the second rider, so they can rest their feet during long rides when in throttle mode.”
Source: addmotor.com/blog/why-choose-the-addmotor-m-380-tandem-trike-for-adults
“Thanks to its dual freewheel cranksets and the advanced drivetrain system, the front and rear pedals operate independently.”
Source: addmotor.com/blog/why-choose-the-addmotor-m-380-tandem-trike-for-adults
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“TIRE SIZE: 24" X 4.0" F & 20" X 4.0" R”
Source: addmotor.com/u_file/2602/photo/m-380-size-1500x1200_1770968525.png
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“Saddle with Backrest”
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“M-380 Tandem eTrike”
Source: addmotor.com/products/m-380-tandem-etrike
Size and fit
- Rider height
- 5'2" - 6'4"
- Weight
- 147 LBS
148 lb
“TANDEM M-380 DUAL-RIDER E-TRIKE Weight 148lbs color: Suggested Height: Payload Capacity 350+150lbs 5'2" 6'4" FOLDTAN Wooden Footrest For The Second Rider Two Seat & Two-Person Pedaling 130+ Miles Ride Range (Dual-Battery) Parking Brake Speed Differential Dual-Battery Option Rear Motor Torque Sensor”
Source: cdn.shopify.com/s/files/1/0530/5968/2468/files/Addmotor_Catalog_2026.pdf?v=1778809673
- Total length
- 96"
- Total width
- 38.5"
- Wheelbase
- 74.5"
- Rear track
- 38.5 inches
- Handling it once folded
- It does not break down for transport in a car, unless you have a pickup, van or motor home
- Standover height
- 17.3"
- Reach
- 14"
- Minimum saddle height
- 31.55"
- Maximum saddle height
- 45"
- Handlebar height
- 48.5"
Source: addmotor.com/products/m-380-tandem-etrike
“SUGGESTED HEIGHT: 5'2" - 6'4"”
Source: addmotor.com/u_file/2602/photo/m-380-size-1500x1200_1770968525.png
Disputed
Source: addmotor.com/products/m-380-tandem-etrike
Other sources state
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“In comparison, the Addmotor M-380 has a 38.5-inch rear track to keep the trike grounded and stable, even with two people on board.”
Source: addmotor.com/blog/why-choose-the-addmotor-m-380-tandem-trike-for-adults
Unconfirmed
“This bike measures 8 feet in length and 3 feet in width. It does not break down for transport in a car, unless you have a pickup, van or motor home. This is more of a stay-at-home and ride the area type bike, such as rural country or city dwellers”
Source: addmotor.com/question_p439
Source: addmotor.com/products/m-380-tandem-etrike
“Standover Height: 17.3"”
Source: addmotor.com/u_file/2602/photo/m-380-size-1500x1200_1770968525.png
Source: addmotor.com/products/m-380-tandem-etrike
Source: addmotor.com/products/m-380-tandem-etrike
“Min Saddle Height: 31.55"”
Source: addmotor.com/u_file/2602/photo/m-380-size-1500x1200_1770968525.png
Source: addmotor.com/products/m-380-tandem-etrike
“Max Saddle Height: 45"”
Source: addmotor.com/u_file/2602/photo/m-380-size-1500x1200_1770968525.png
Source: addmotor.com/products/m-380-tandem-etrike
Compatibility
- No replacement pack we hold names this model
- Addmotor name other models on their packs, not this one
“17.5Ah (840Wh) Lithium-Ion battery pack fits Addmotor e-bike models of M-140, M-150, M-330, and 2022 versions of M-350 & M-340”
Source: addmotor.com/products/m-380-tandem-etrike
Buying and owning it
- Pre-assembled
- 85% assembled
“The M-380 Tandem eTrike arrives 85% pre-assembled and the final assembly is not difficult.”
Source: addmotor.com/question_p439
Certification claims
- Certification claimed by the manufacturer
- UL 2271
Unconfirmed
“Rear-Drive Motor 750W Battery 48V*20Ah per Charge (2 Battries) 130 Miles UL Certification UL 2271 Payload Capacity 550 LBS Top Speed 20 Mph”
Source: addmotor.com/products/m-380-tandem-etrike