Sun Seeker E-Delta B1 SX Electric Delta vs Sun Seeker E-Eco Tad B1 SX Electric TadpoleE-Delta B1 SX Electric Delta vs E-Eco Tad B1 SX Electric Tadpole
Both checked Sep 2026 against manufacturer pages
Key differences
What actually differs
Same 350W motor, both one rider.
Weight
Sun Seeker is 12 lb lighter
Sun Seeker
79.5 lb
Sun Seeker
68 lb
Verdict
Which one for you
- Easiest to lift or carrySun Seeker E-Eco Tad B1 SX Electric Tadpole12 lb lighter overall.
Full specs
Side by side
SpecSun Seeker E-Delta B1 SX Electric DeltaSun Seeker E-Eco Tad B1 SX Electric Tadpole
Fit
Seat height
23" (58 cm)
15 - 17" (38-43 cm)
Rider limit
300 lb
300 lb
Seats
1 rider
1 rider
Motor
Rated power
350W
350W
Torque
55 Nm
55 Nm
Battery
Capacity
504 Wh
504 Wh
Voltage and amp-hours
48V · 10.5Ah
48V · 10.5Ah
Range and speed
Claimed range
Eco PAS mostly pedaling 45-50 mi; throttle-only 25-30 miBetter
Eco PAS mostly pedaling 42-48 mi; throttle-only 23-28 mi
Top speed
15 mph
15 mph
E-bike class
Class 2
Class 2
Size and folding
Weight
79.5 lb
68 lbBetter
Wheels
16" front, 20" rear
20" front and rear
Brakes and drivetrain
Brakes
Promax disc front (140mm) and rear (160mm)
Promax disc (front), 160mm rotor
Parking brake
Yes
Yes
Gears
SunRace 7-speed, 13-32T
SunRace 7-speed, 13-32T
Comfort and safety
Certifications
ACT Lab tested to UL 2849, UL 2271 and CPSC
ACT Lab tested to UL 2849, UL 2271 and CPSC
List price
Price
$3,999.99
$3,849.99Better
"Better" marks the stronger figure where one clearly exists. Range and battery claims are the brand's own. "~" means we calculated it. "—" means we haven't checked it yet. Sources and any conflicting figures are on each model page.