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 1000 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.
***Please note that fenders are currently unavailable***
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" Wide Tires
- SRAM Shifting w/ 3x8 Gearing
- Ergonomic Chromoly Handlebars
- Air-mesh Seat w/ Alloy Seat Frame
- 10" of Ground Clearance

Videos
Features
The Fat-Tad Sun Tadpole trike is a beast on trails and can conquer almost any terrain. With the 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 electric Fat-Tad features an 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 soak up the bumps!

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




How to Measure Your X-Seam
At Electric Bike 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
The Contiguous USA Only.
Sales Tax
Sales tax will be applied to AR, AZ, FL, GA, IN, IA, KS, KY, MI, MN, NE, NV, NJ, NC, ND, OH, OK, PA, RI, SD, TN, UT, VT, WA, WV, WI and WY.
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 afterward.
Shipping Size
73" x 40" x 51" / 190 lbs
Please note this custom electric trike ships with the E-BikeKit owners 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, suggestions, or additional information that you would like to see posted, please let us know.
If you have any questions, please contact us at
Tel: +1 800.215.1976 or
E-mail: support@electricbikestore.com
Specs
-
Top Speed
26 Mph (w/ Programmable Limit) -
Range
10-44 Miles (Depends on the Battery Choice) -
Motor
E-BikeKit Rear Geared Fat Motor 500-1,000 Watts, 84Nm, 320 Rpm (48v) -
Motor Weight
9.4 lbs -
Battery
48v 9Ah – 48v 20Ah -
Max Payload
250 lbs (Including Rider and Cargo) -
Charge Time
4.5-5 Hours (From 0-100%) -
Charger
48v 2A – 48v 4A -
Drive Mode
Throttle-on-Demand and Pedal-Assist. 5-Level Speed Control, Programmable Speed, Current Limit, and Assist Level -
Color
Gloss Red w/ Black Accents -
Intended Use
Neighborhood, Cruising, Paved Trail, and Urban -
Frame Material
Tig Welded Chromoly w/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
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" / 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, and One Lever for Each Front Wheel -
Stem
None -
Handlebar
Chromoly Steel, 22.5 Diameter w/ Two Water Bottle Mounts -
Grips
EBT Grips – EVA Rubber -
Shifter
SRAM Grip Shift 3.0 -
Display
E-BikeKit 2017 LCD -
Front Derailleur
Sunrace Triple -
Rear Derailleur
Sram X4 -
Gearing
Shimano 24-Speed (3x8) / 13-34t Cassette -
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" (From the Bottom of the Steering Linkage to the Ground) -
Turning Radius
11' 6" approx. -
Overall Weight
76.5-91.5 lbs (Depends on Battery Type Choice)
Battery
Model | Weight | Range | Mount Style | Cost |
---|---|---|---|---|
48v 9Ah | 5.8 lbs | 10-22 Miles | Battery Bag with Velcro Straps | Base Cost |
48v 10Ah | 9.7 lbs | 12-26 Miles | Sliding Plate with Lock | +$286 |
48v 20Ah | 14 lbs | 20-44 Miles | Battery Bag with Velcro Straps | +$366 |
-
Nominal Voltage
48v -
Nominal Capacity
9-20Ah (Depends on the Battery Choice) -
Battery Energy
490-1092Wh (Depends on the Battery Choice) -
Dimensions
Depends on the Battery Choice -
Total Weight
< = Depends on the 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 (From 0-100%) -
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
Aluminum or Vinyl w/ Canvas Bag (Depends on the Battery Choice) -
Battery Weight
5.8-14 lbs (Depends on the Battery Choice) -
Assembled Pack Certificates
UL; UN38.3; MSDS; RoHS; SGS -
Limited Warranty
1 Year -
Manufacturer
Electric Bike Technologies, Inc.
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