Electric Fat-Tad
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The Fat-Tad is a unique recumbent with stylish looks and lots of value. The most popular recumbent electric trike we offer for obvious reasons; it delivers easy access to speed and power to assist you in going farther and faster while remaining comfortable.
This 4 inch fat tire electric recumbent has a compact yet powerful 1000w watts of power, 26 mph top speeds and plenty of torque to help power your ride. Available with multiple battery and tire options to meet your range and terrain requirements.
Highlights
- Rear coil-over suspension and integrated front suspension
- Alloy rims, 55mm wide, 190mm rear hub
- Promax mechanical disc brake system for front wheels
- 20" x 4" tires tuned for all trail conditions
- Full-range SRAM shifting with 3x8 gearing
- Ergonomic chromoly handlebars
- Air-mesh seat with alloy seat frame
- 10" of trail-ready ground clearance

Videos
Reviews
Features
The Fat-Tad Sun Tadpole Trike is a beast on trails and can conquer almost any terrain. With fat 4" wide tires, rear coil-over suspension and integrated front suspension the Fat-Tad climbs over obstacles with ease and keeps you stable.

The Fat-Tad features independent, fork-integrated front suspension on each front wheel in addition to rear coil-over suspension. Combined with the massive 4" tires, this trike can really soak up the bumps!

The rear coil-over suspension adds cusion right where it is needed, under the rider's seat. The suspension bushing and swingarm design allows the rear wheel to articulate independently from the front wheels, for the smoothest ride possible.




How to Measure Your X-Seam
At Electric Trike Store, we like to use the X-Seam measurement to fit riders on recumbent trikes, and inseam to fit riders on upright trikes (like the Sun Traditional).
We use this measurement to adjust your trike to fit you out-of-the-box, but it's simple to adjust your trike later to suit your preferences. This is just a rough measurement to make things easier for you.
Alternatively, if you like reading and diagrams...
To measure your X-seam, you'll need a tape measure, a sturdy board (like a piece of plywood or an ironing board), and an assistant to help you. If you currently ride a recumbent bike, you can use that to take the measurement instead of the board.
Sizing

-
A: Handlebar Reach
8"-12" -
B: Standover Height
18" -
C: Seat Length to Pedal
38"-50" -
D: Seat Height to Ground
16.5"-17.75" (Depends on Rider X-Seam Set-up) -
Recommended Rider Height
5'-6'4"

Shipping
$250 Flat-Rate Shipping
Contiguous USA Only.
Orders shipping to PA will be subject to sales tax. There is no sales tax presently to any other state.
SHIPS 100% FULLY ASSEMBLED from our warehouse in Bucks County, PA
The bike is enclosed in a heavy cardboard box, protected by a wood frame and fastened to a custom-built shipping pallet. Shipping is by freight truck with liftgate service included.
We use a variety of freight carriers based on your shipping destination. When the trike ships you will receive an email from us with tracking information. The freight company will contact you before the final delivery is made in order to arrange the drop-off with you.
Delivery Time:
East Coast: 2-4 business days
Midwest: 3-5 business days
West Coast: 5-7 business days
With liftgate service, the truck can only lower the pallet to the ground, they cannot deliver it inside your house. You will need to open the box and dispose of the pallet afterwards.
Shipping Size: 73" x 40" x 51" / 190lbs
Please Note: This custom electric trike ships with the E-BikeKit user manual for details on the electric-drive system and also with the Sun official manual for the trike itself. The video section above contains assembly instructions and tips for getting started and using your new electric trike. The specifications sections should also provide most of the information you'll want to know. If you have any questions or suggestions of additional information you would like to see posted, please let us know.
If you have any questions, please contact us at
Tel: +1 800.375.0224 or
Email: support@electrictrike.com
Specs
-
Top Speed
26 mph (With Programmable Limit) -
Range
10-44 Miles (Depends on the Battery) -
Motor
E-BikeKit Rear Geared Fat Motor 500w-1,000w, 84Nm, 320rpm (48v) -
Motor Weight
9.4 lbs -
Battery
48v 9Ah – 48v 20Ah -
Max. Payload
250 lbs (With rider and cargo) -
Charge Time
4.5-5 Hours -
Charger
48v 2A – 48v 4A -
Drive Mode
Throttle-on-Demand and Pedal-Assist. 5-Level Speed Control, Programmable Speed and Current Limit, and Assist Level -
Color
Gloss Red w/ Black Accents -
Intended Use
Neighborhood, Cruising, Paved Trail, and Urban -
Frame Material
Tig Welded Chromoly with Rear Coil Over Suspension -
Fork Details
High Tensile Steel, Front Integrated Suspension w/ 20mm Travel -
Rear Frame Details
Rear Coil-Over Suspension w/ 30mm Travel -
Rims
20" Alloy Single-Wall, 55mm Width, w/ Cut-Outs -
Spokes
(F) 14 Gauge Single-Butted, Stainless Steel / (R) Black 13 Gauge, Stainless Steel -
Tires
Fat Bike Knobby, 20" x 4" or Slick: Sunlite XL, 20" x 4.25" at 5 to 20 psi -
Saddle
Sunlite Padded Seat w/ Mesh Back and Adjustable Backrest Angle -
Brakes
(F) ProMax Mechanical Disc w/ 160mm Rotors
-
Brake Lever
Includes E-brake Shutoff and Parking Lock, One Lever for Each Front Wheel -
Stem
N/A -
Handlebar
Chromoly Steel, 22.5 Diameter w/ 2 Water Bottle Mounts -
Grips
EBT Grips – EVA Rubber -
Shifter
SRAM Grip Shift 3.0 -
Display
E-BikeKit 2017 LCD Display -
Front Derailleur
Sunrace Triple -
Rear Derailleur
Sram X4 -
Gearing
SunRace 8-speed (3x8) / 13-34t Freewheel -
Cranks
Triple Alloy, 170mm Length / 42/32/22 Chainrings -
Pedals
Wellgo, B223 Plastic Platform w/ 9/16" Thread -
Rack
Black, Rear Carrier Rack for the Battery -
X-Seam Range
35"-50-1/2" (Smaller Sizes May Require Modifications) -
Wheelbase
59" -
Overall Length
78"-83.5" (Depends on Rider X-Seam Set-up) -
Max. Width
38" -
Ground Clearance
10" (Steering Linkage) -
Turning Radius
11'6" (Approx.) -
Overall Weight
76.5-91.5 lbs (Depends on Battery Type)
Battery
Model | Weight | Range | Mount Style | Cost |
---|---|---|---|---|
48v 9Ah | 5.8lbs | 10-22 | Battery Bag with Velcro Straps | Base Cost |
48v 10Ah | 9.7lbs | 12-26 | Sliding Plate with Lock | +$286 |
48v 20Ah | 14lbs | 20-44 | Battery Bag with Velcro Straps | +$366 |
-
Nominal Voltage
48v -
Nominal Capacity
Depends on Battery Choice: 9-20Ah -
Battery Energy
Depends on Battery Choice: 490-1092Wh -
Dimensions
Depends on Battery Choice -
Total Weight
< = Depends on Battery Choice -
Cell Assembly
18650-3.6v-13S -
Life Cycles
> = 80% Dod = 500 Cycles -
Max. Continuous Discharge
22.5A -
BMS Protection Current
30A -
Discharge Cut-Off Voltage
37.5v
-
Max. Charge Voltage
54.6v -
Inner Resistance
< 50mΩ -
Charge Time
< = 3.3 Hours -
Operation Temperature Range
Charge: 0°C – 45°C / Discharge: -20°C – 60°C -
Storage Temperature
0°C – 40°C (Extended Storage: 15°C – 25°C) -
Battery Box Material
Depends on Choice: Aluminum or Vinyl w/ Canvas Bag) -
Battery Weight
5.8-14 lbs -
Assembled Pack Certificates
UL; UN38.3; MSDS; RoHS; SGS -
Manufacturer
Electric Bike Technologies
DIY
If you already have a Sun Seeker Fat-Tad and want to convert it to electric, we offer conversion kits at E-BikeKit.com, including kits specifically for the Fat-Tad:
Conversion Points:
- Use the "Sun Seeker Fat Tad" E-Bike Conversion kit at E-BikeKit