The EZ-3 USX HD provides all the stability and control available in
recumbent trike technology while offering a little more thrill. And when
we say HD we mean heavy duty, with 110 psi tires, 48 spoke wheels with
double-wall rims, this trike will handle 400 pounds. Setting this trike
apart from others is its low center of gravity attained by three 20-inch
wheels that are cambered in the rear to increase cornering stability.
Also, the EZ-3 USX HD offers powerful brakes on all three wheels,
mid-frame suspension and under-the-seat steering. The EZ-3 USX HD might
not be for the superhuman daredevil, but it is quite perfect for the
casual to intermediate rider, and perfect for sunny days on the bike
path or zooming down the boardwalks. The EZ-3 USX features Direct
Steering, the new Slotted Seat adjustment system, and rattle-free and
infinite-adjust seat struts.
- Wheel Base: 59.5" (151cm)
- Overall Length: 78" (198cm)
- Width: 32" (81cm)
- Seat Height: 18" (45cm)
- Weight: 65lbs
- Weight Limit: 400lbs
- X-Seam: 36-47"
Frameset
Frame
EZ3 USX HD Main Frame, Custom Steel, TIG-Welded
Left Frame
EZ3 USX HD LH Main Frame Section, Custom Steel, TIG-Welded
Front Frame
EZ3 USX HD Front Frame, Custom Steel, TIG-Welded
Frame Bearing
Frame Pivot Bearing, 32x12mm
Shock
EZ3 USX HD Shock, KS-261, 150mm
Frame Pivot Bolt
Frame Pivot Bolt, 12mm
Fork
1-1/8" High Tensile Steel for USX HD, D-Blade w/Steer Tab
Drivetrain
Front Shifter
SRAM 3.0 3-Speed Grip Shift
Rear Shifter
SRAM 3.0 7-Speed Grip Shift
Front Derailleur
Microshift FD-M22, DP, 31.8
Freewheel
Sunrace (7-Speed) 14-34T
Freewheel Adapter
Freewheel Adapter Threaded
Crank Set
Alloy, 3-Piece, 170x52/42/32T
Bottom Bracket
Sealed Cartridge, 68 x 118mm
Chain
K.M.C. Z51 1/2 x 3/32'' (216 Links)
Chain Tube Bracket
Double Spring w/Hardware
Chain Tube Clamp
Clamp w/Hardware
Pedals
Resin Body w/Alloy Cage, 9/16"
Brakes
Front Brake
Alloy, Linear Pull, Black
Rear brake
Promax DSK-400 Disc w/160mm Rotor
Components
Headset
Steel Integrated, 28.6x44x30mm, Black
Rear Headset
Steel, 28.6x34x30mm Threadless for Underseat Steering
Handlebar
Alloy, Recumbent, Underseat
Right Handlebar
Right Handlebar Extension USX 22.2mm
Left Handlebar
Left Handlebar Extension USX 22.2mm
Stem
Alloy, Threadless, 28.6 x70mm x25deg x25.4mm Clamp, Black
Grips
Kraton Rubber-Gel, 75mm, 2-Tone Black/Grey
Front Brake Lever
Linear Pull w/Lock, Black/Silver
Rear Brake Lever
Linear Dual Pull, Black/Silver
Saddle
Recumbent, w/Tri-Stitch Cover
Wheels
Front Hub
Alloy, 48H x 14G with Q/R Axle, Black
Rear Hub
Alloy, 48H x 14G with 14mm Bolt-On Axle, Black, For F/W, Disc Compatible
Front Rim
Alloy, Double Wall 20'' x 48H x 14G, Black
Rear Rim
Alloy, Double Wall 20'' x 48H x 14G, Black
Spokes
14G Stainless Steel with Brass Nipples, Black
Front Tire
Maxxis Hook Worm 20 x 1.95", 110psi
Rear Tire
Maxxis Hook Worm 20 x 1.95", 110psi
Replacement Parts
Rear Unit Hardware
Rear Unit Hardware Kit
Head/Derailleur Tube Cap
Head/Derailleur Tube Cap
Steering Linkage
USX HD Silver
Left Rod End
Left Hand Thread
Right Rod End
Right Hand Thread
Left Rear Axle
Rear Axle Left Side USX
Right Rear Axle
Rear Axle Right Side USX
Locking Axle Collar
Locking Axle Collar & Spacer EZ3/X3 USX
Internal Snap Ring
Rear Axle Internal Snap Ring USX 2"
Axle Bearing
Rear Unit Axle Bearing 20id x42od x9w EZ3 USX HD
Axle Retaining Bolt
Rear Axle Retaining Bolt/Cap USX RH Sml
Axle Retaining Nut
Rear Axle Retaining Bolt/Cap USX LH Lrg
Hub Retaining Bolt
Trike Hub Ret Bolt/Cap for Square or Tapered, Black
Seat Mesh
Cool Back Seat Mesh
Seat Back
Cool Back Steel w/Dual Bottle Mounts
Seat Cover
Tri-Stitch, Permanent
Seat Mount
Steel for 31.8mm TT
Seat Mount Binder
QR M6x88mm Alloy, XL Lever
Seat Back Pivot Bolt
10mm, Chrome
Upper Strut
Steel 150mm Black
Upper Strut Washer
Curved Nylon Washer
Lower Strut
Steel, Pin Type, 700mm Universal
Lower Strut Slide Bolt
Lower Strut Bolt and Nut
Strut Peg QR
Steel Pin, QR
Bottom Bracket Cover
Shell Cover Black
Review from Adult Tricycle Review
The Sun EZ-3 USX is a human-powered, recumbent, three wheeled
vehicle. It engages me in a way that the Segway did not. I am amazed
this product, what some call a “bent trike,” is not better known.
What’s significant about the USX? It’s the most comfortable human
powered vehicle ever, more comfortable than many cars. It’s safe,
practical, and affordable. I hate exercise but I find myself impatient
to get my next chance to ride this thing. The USX is potentially a major
step forward in promoting conservation and healthy exercise in America.
Riding the USX is eerie, because it feels like relaxing on a perfect
easy chair and performing aerobic exercise at once. You can go fast or
slow, and both are wonderful. You can load the thing with 400 total
pounds. You can pull carts. Some riders have decked out USX’s with ipod
sound systems and other amenities.
There are some downsides. It’s heavy: 65 pounds. Going up hills is pleasant, but slower than on a bicycle.
Another big plus: you sit high enough to be noticed by car drivers,
though I also added a flag and extra lights to err on the side of
caution. Although it looks wide, and encourages cars to give more room
than is commanded by bicyclists, it is actually narrow enough to roll
through a standard door. You can stand it up on end so it takes minimal
room when parked. You can just stop and rest while going up hill- it has
a parking brake.
There are lots of other bent trikes — dozens — but most are
“performance-oriented” — made for athletes. Some of the athletic brands
are
ICE, HP Velotechnik and , Catrike. I have tried some of them, and I
think they are fun and interesting, but not what I want. Some of them
are expensive, very low slung (you’re practically on the ground while
riding), and not so practical for non-atheletes. What I want is
something that’s super easy to get in and out of, that’s fun to sit on
while standing still, that’s high up enough to be safe around cars, and
that is fun to ride slow. I want something for life, not for sport, and
there’s not much competition in this niche. There is another interesting
comfort-oriented bent trike, the Hase Leupus, from Germany.
Beware that sometimes enthusiast cults get lost in fantasy. The
enthusiasm in the bent trike world sometimes reminds me of what happened
with high-end consumer audio. Superstitions crowded out reality. People
started to spend insane money on audio cables with impossible physical
properties.
Even though the USX is ridiculed by some hard-core bent bike
enthusiasts, it is an important product, even aside from the low price.