Electric EZ-3 USX HD
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The electric EZ-3 USX HD provides the stability and comfort of a recumbent trike while offering more thrills. The HD stands for heavy-duty, with 110 psi tires, 48-spoke wheels, and a 400 lb load capacity. The direct-drive motor is also HD and designed for heavier applications with 1000 watts of power.
Ideal for larger riders, the EZ-3 USX HD has a powerful braking system, mid-frame suspension, cambered rear wheels, and under-the-seat steering. Available with multiple battery options, optional rear fenders, and basket.
Highlights
- Low center of gravity
- Stable cambered rear wheels
- Heavy-Duty 48-spoke rear wheels
- Double-wall rims
- High-pressure tires
- Rated for riders up to 400lbs
- Extra padded mesh seat
- Mid-frame suspension
- 20" x 1.9" tires
- Quick-release adjustable seat
- Quick-release backrest
- Dual rear disc and front v-brake
Videos
Reviews
Features
The EZ-3 USX HD provides all the stability and control available in recumbent trike technology while offering a little more thrill. The HD stands for heavy-duty, with 110 psi tires, 48-spoke wheels with double-wall rims. The direct-drive motor is also heavy-duty and designed for heavier loads with 1,000 watts of peak power.
The mid-frame coil-over suspension on the EZ-3 HD helps smooth the roughest roads and keeps you riding when other trikes would give up.
With 48-spoke double-wall alloy rims, high-pressure tires, dual rear disc brakes, and front v-brake, the EZ-3 HD is built for a 400 lb capacity with a low center of gravity.
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
9" -
B: Standover Height
19" -
C: Seat Length to Pedal
27"-33" -
D: Seat Height to Ground
20" -
Recommended Rider Height
5'-6'4"
Shipping
$250 Flat-Rate Shipping.
Contiguous USA Only.
Orders shipping to PA will be subject to sales tax.
Ships fully assembled from our warehouse in Bucks County, PA. The trike is enclosed in a heavy cardboard box fastened to a shipping pallet, delivered by motor freight truck with liftgate service. 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. Tracking is less precise than UPS or FedEx. 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: 80" x 40" x 44" / 190lbs
Please Note: This 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 bike. 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. Official manuals are in development, and once completed, they will be offered to customers that request them.
If you have any questions, please contact us at
Tel: +1 800.375.0224 or
Email: support@electrictrike.com
Specs
-
Top Speed
20 mph (With Programmable Limit) -
Range
10-44 Miles (Depends on Battery Choice) -
Motor
E-BikeKit Front Heavy-Duty Direct-Drive 500w-720w, 31Nm, 259rpm (48v) -
Motor Weight
9.4 lbs -
Battery
48v 9Ah, 48v 10Ah or 48v 20Ah -
Max. Payload
400 lbs (With Rider and Cargo) -
Charge Time
4.5-5 Hours -
Charger
48v 2A – 48v 4A -
Color
Ultra Silver -
Intended Use
Neighborhood, Cruising, and Urban -
Drive Mode
Throttle-on-Demand and Pedal-Assist, 5-Level Speed Control, Programmable Speed and Current Limit, and Assist Level -
Frame Material
Custom Steel, TIG Welded -
Fork Details
High-Tensile Steel, KSPEED 261 Mid-Frame Bumper Suspension -
Rims
(F & R) Alloy 48-hole Double-Wall -
Spokes
(F) 12 Gauge, Stainless Steel / (R) 14 Gauge, Stainless Steel -
Tires
Maxxis Hookworm, 20” x 1.95” at 85-110 psi -
Seatpost
Rans Style Seat Slide -
Saddle
Sunlite Heavy-Duty Padded Seat w/ Mesh Back and Adjustable Backrest Angle -
Brakes
(F) ProMax V-brake / (R) WinZip Mechanical Disc Brakes w/ 160mm Rotor -
Brake Lever
Includes E-brake Shutoff and Parking Lock for Front-Wheel and One Dual-Pull Lever for both Rear Wheels -
Stem
Alloy
-
Handlebars
Steel, Reverse Mounted Underneath Seat -
Grips
EBT Grips – EVA Rubber -
Shifter
SRAM Grip Shift 3.0 -
Display
E-BikeKit 2017 LCD Display -
Front Derailleur
Shimano -
Rear Derailleur
Sram X3 -
Chain Guard
N/A -
Gearing
Shimano 21-speed (3x7) / 13-28t Cassette -
Cranks
Alloy 170mm w/ 30/42/52t Chainrings -
Pedals
Wellgo, LU-812, Alloy Cage Style w/ 9/16” Thread -
Lights
None -
Fenders
Optional: Front & Rear Set, Black High Impact Plastic w/ a Glossy Finish -
Basket
Optional: Steel, Black Vinyl Coated: 16.25" Long x 13.25" Wide x 8.5" Deep -
X-Seam Range
29”-49” (Smaller Sizes May Require Modification) -
Wheelbase
59.5” -
Overall Length
81” -
Max. Width
31” -
Ground Clearance
3” (Rear Derailleur) -
Turning Radius
10'3-1/2" (Approx.) -
Overall Weight
61-71 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 Battery Choice: Aluminum or Vinyl w/ Canvas Bag -
Assembled Pack Certificates
UL; UN38.3; MSDS; RoHS; SGS -
Manufacturer
Electric Bike Technologies
DIY
If you already have a Sun Seeker EZ-3 HD and want to convert it to electric, we offer conversion kits at E-BikeKit.com, including kits specifically for the EZ-3 HD:
Conversion Points:
- Use the "Sun Seeker EZ-3 HD" e-bike conversion kit from E-BikeKit.