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Grandtan M-340
A non-folding, one-rider trike with a 17.5″ step-over and a 350 lb rider limit.
- Motor
- 750W · 90 Nm
- Battery
- ~960 Wh
- Range, claimed
- 40-85 miles
- Top speed
- 20 mph
- Folded
- Doesn't fold
- List price
- $2,399
Available at
Still collecting: retailer links
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✓ Specs checked Sep 28, 2026against addmotor.com · sources for each spec · 1 conflicting figure
Specifications
Fit
- Step-over height
- 17.5″44 cmaddmotor.com ↗ · checked Sep 28, 2026
- Rider height
- 5′2″–6′4″157–193 cmaddmotor.com ↗ · checked Sep 28, 2026
- Seat height
- 32.5"-39" (min/max saddle height)addmotor.com ↗ · checked Sep 28, 2026
- Rider limit
- 350 lb159 kgaddmotor.com ↗ · checked Sep 28, 2026
- Total load
- 450 lb204 kg · rider plus cargoaddmotor.com ↗ · checked Sep 28, 2026
- Seats
- 1 rideraddmotor.com ↗ · checked Sep 28, 2026
Motor
- Rated power
- 750Waddmotor.com ↗ · checked Sep 28, 2026
- Peak power
- Not published by brandaddmotor.com ↗ · checked Sep 28, 2026
- Torque
- 90 Nmaddmotor.com ↗ · checked Sep 28, 2026
Battery
- Capacity
- ~960 WhCalculated: 48V × 20Ahaddmotor.com ↗ · checked Sep 28, 2026
- Voltage and amp-hours
- 48V · 20Ahaddmotor.com ↗ · checked Sep 28, 2026
- Battery weight
- Not published by brandaddmotor.com ↗ · checked Sep 28, 2026
Range and speed
- Claimed range
- 40-85 milesaddmotor.com ↗ · checked Sep 28, 2026
- Top speed
- 20 mph32 km/haddmotor.com ↗ · checked Sep 28, 2026
- E-bike class
- Not published by brandaddmotor.com ↗ · checked Sep 28, 2026
Size and folding
- Folds
- Noaddmotor.com ↗ · checked Sep 28, 2026
- Folded size
- Doesn't foldaddmotor.com ↗ · checked Sep 28, 2026
- Weight
- 123 lb56 kgBrand publishes conflicting figures: 110 LBS/50 KG · about 123 lbs. We use the figure least favourable to you.addmotor.com ↗ · checked Sep 28, 2026
- Wheels
- 24" front / 20" rearaddmotor.com ↗ · checked Sep 28, 2026
Brakes and drivetrain
- Brakes
- Mechanical disc brakes on each wheeladdmotor.com ↗ · checked Sep 28, 2026
- Parking brake
- Yesaddmotor.com ↗ · checked Sep 28, 2026
- Gears
- Shimano 7-speedaddmotor.com ↗ · checked Sep 28, 2026
- Rear differential
- Yesaddmotor.com ↗ · checked Sep 28, 2026
- Reverse
- Not published by brandaddmotor.com ↗ · checked Sep 28, 2026
Comfort and safety
- Suspension
- Oil spring fork, 80mm travel (Addshox)addmotor.com ↗ · checked Sep 28, 2026
- Certifications
- UL 2271 & UL 2849addmotor.com ↗ · checked Sep 28, 2026
Documents
Addmotor Grandtan M-340 manuals and PDFs
Addmotor doesn't publish a brochure, spec sheet or manual for download. We last looked on Sep 28, 2026.
Legal in your state
Can I ride it where I live?
We haven't confirmed this model's class or top speed, so we can't place it in a class yet.
✓ E-bike (class not stated) in California
20 mph
- License, registration
- No driver's license, registration, license plate or insurance is needed for a legal e-bike or e-trike, and it is not a motor vehicle.
- Helmet
- Riders and passengers under 18 must wear a bicycle helmet on any bike, including an e-bike.
- Minimum age
- Riders must be 16 or older to operate a Class 3. State law sets no minimum age for Class 1 or 2, but pilot laws let San Diego County and Marin County set local limits (see local_notes).
- Where you can ride
- E-bike riders have the same road rights and duties as bicyclists, including use of bike lanes.
Last verified Sep 2026 · Read the statute ↗ · Full California guide · Not legal advice.
⚠ Not covered by the e-bike law
New Jersey's e-bike law leaves trikes out. See what that means for trikes below.
- License, registration
- Riders 17+ need a valid driver's license of any class or a moped (e-bike) license/permit; riders 15-16 need a moped (e-bike) license or permit; bike-share renters 16+ are exempt.
- Helmet
- Motorized bicycle riders of every age must wear an approved helmet.
- Minimum age
- No one under 15 may ride a low-speed e-bike or motorized bicycle.
- Where you can ride
- Motorized bicycles may not use interstates, median-divided highways, roads posted over 50 mph, or the GSP/Turnpike/AC Expressway.
Last verified Sep 2026 · Read the statute ↗ · Full New Jersey guide · Not legal advice.
⚠ Check before buying
750W motor is over the under-750W limit.
- License, registration
- No driver license needed for any e-bike class.
- Helmet
- Riders and passengers under 16 must wear a bicycle helmet; no state helmet rule for 16+.
- Minimum age
- No statewide minimum age, but since July 1, 2025 cities/counties may set minimum ages and require riders to carry government photo ID.
- Where you can ride
- You may ride anywhere a regular bicycle is allowed, including streets, shoulders, bike lanes and multi-use paths.
Last verified Sep 2026 · Read the statute ↗ · Full Florida guide · Not legal advice.
✓ E-bike (class not stated) in New York
20 mph
- License, registration
- No driver's license, registration or insurance is needed for a legal Class 1-3 e-bike.
- Helmet
- All Class 3 riders must wear a helmet; for Class 1 and 2 no state helmet rule applies to adults (localities may require helmets).
- Minimum age
- Riders must be at least 16.
- Where you can ride
- E-bikes may be ridden on roads with a posted speed limit of 30 mph or less, and in bike lanes; Class 3 only in New York City.
Last verified Sep 2026 · Read the statute ↗ · Full New York guide · Not legal advice.
Compare with
Addmotor Grandtan X
| This trike | Grandtan X | |
|---|---|---|
| Step-over | 17.5″ | 17.5″ |
| Total load | 450 lb | 360 lb |
| Weight | 123 lb | 128 lb |
| Top speed | 20 mph | 20 mph |
Compare with
Addmotor Triketan M-330
| This trike | Triketan M-330 | |
|---|---|---|
| Step-over | 17.5″ | 16.5″ |
| Total load | 450 lb | 450 lb |
| Weight | 123 lb | 112 lb |
| Top speed | 20 mph | 20 mph |
Similar models
See all trikes Will it fit me?
Your measurements against Addmotor's limits
Height
5′6″
168 cm
Weight
180 lb
82 kg
Rider height
5′2″ min6′4″ max
Weight and load
Rider 350 lbTotal 450 lb
Step-over, 17.5″
groundyour knee ▲
Bike: 123 lb