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Grandtan X

A non-folding, one-rider trike with a 17.5″ step-over and a 280 lb rider limit.

Motor
750W (1,400 peak) · 90 Nm
Battery
960 Wh
Range, claimed
40-85 miles (85 miles PAS1)
Top speed
20 mph
Folded
Doesn't fold
List price
$2,899
Available at
Still collecting: retailer links
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✓ Specs checked Sep 28, 2026against addmotor.com · sources for each spec · 2 conflicting figures
Our scores
Seniors fit45
Heavy-rider fit14
How we score
Specifications
Full spec sheet · 26 specs from the manufacturer's page

Fit

Step-over height
17.5″
44 cm
addmotor.com ↗ · checked Sep 28, 2026
Rider height
5′2″–6′4″
157–193 cm
addmotor.com ↗ · checked Sep 28, 2026
Seat height
32.5"-39"
addmotor.com ↗ · checked Sep 28, 2026
Rider limit
280 lb
127 kg
Brand publishes conflicting figures: 280 lb. We use the figure least favourable to you.
addmotor.com ↗ · checked Sep 28, 2026
Total load
360 lb
163 kg · rider plus cargo
Brand publishes conflicting figures: 380 LBS · 280+80 LBS. We use the figure least favourable to you.
addmotor.com ↗ · checked Sep 28, 2026
Seats
1 rider
addmotor.com ↗ · checked Sep 28, 2026

Motor

Rated power
750W
addmotor.com ↗ · checked Sep 28, 2026
Peak power
1,400W
addmotor.com ↗ · checked Sep 28, 2026
Torque
90 Nm
addmotor.com ↗ · checked Sep 28, 2026

Battery

Capacity
960 Wh
stated by brand
addmotor.com ↗ · checked Sep 28, 2026
Voltage and amp-hours
48V · 20Ah
addmotor.com ↗ · checked Sep 28, 2026
Battery weight
Not published by brand
addmotor.com ↗ · checked Sep 28, 2026

Range and speed

Claimed range
40-85 miles (85 miles PAS1)
addmotor.com ↗ · checked Sep 28, 2026
Top speed
20 mph
32 km/h
addmotor.com ↗ · checked Sep 28, 2026
E-bike class
Not published by brand
addmotor.com ↗ · checked Sep 28, 2026

Size and folding

Folds
No
addmotor.com ↗ · checked Sep 28, 2026
Folded size
Doesn't fold
addmotor.com ↗ · checked Sep 28, 2026
Weight
128 lb
58 kg
addmotor.com ↗ · checked Sep 28, 2026
Wheels
24" front / 20" rear
addmotor.com ↗ · checked Sep 28, 2026

Brakes and drivetrain

Brakes
Mechanical disc brake
addmotor.com ↗ · checked Sep 28, 2026
Parking brake
Yes
addmotor.com ↗ · checked Sep 28, 2026
Gears
Shimano Tourney TY300 7-speed, 14-32T
addmotor.com ↗ · checked Sep 28, 2026
Rear differential
Yes
addmotor.com ↗ · checked Sep 28, 2026
Reverse
Not published by brand
addmotor.com ↗ · checked Sep 28, 2026

Comfort and safety

Suspension
Oil spring front fork 80mm travel + rear shock absorber
addmotor.com ↗ · checked Sep 28, 2026
Certifications
UL 2271 (battery)
addmotor.com ↗ · checked Sep 28, 2026
Documents

Addmotor Grandtan X manuals and PDFs

Addmotor doesn't publish a brochure, spec sheet or manual for download. We last looked on Sep 28, 2026.

Compare with
Addmotor Grandtan M-340
This trikeGrandtan M-340
Step-over17.5″17.5″
Total load360 lb450 lb
Weight128 lb123 lb
Top speed20 mph20 mph
Compare side by side →
Compare with
Addmotor Grandtan Turbo
This trikeGrandtan Turbo
Step-over17.5″17.5″
Total load360 lb360 lb
Weight128 lb118 lb
Top speed20 mph20 mph
Compare side by side →

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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 280 lbTotal 360 lb
Step-over, 17.5″
groundyour knee ▲
Bike: 128 lb