Cosmic Jay - euphree
Cosmic Jay - euphree
Cosmic Jay - euphree
Cosmic Jay - euphree
Cosmic Jay - euphree
Cosmic Jay - euphree
Cosmic Jay - euphree
Cosmic Jay - euphree
Cosmic Jay - euphree

Cosmic Jay

20 x 4 Fat Tire All-Road Utility E-Bike

$2,199.99
Color: Royal Blue
In Stock Ships Within 3-5 Business Days!
Prefer a test ride? Find a dealer
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Performance at a Glance

750W
Bafang Motor
750W, 90 Nm Torque
720Wh
Battery
48V 15Ah LG cells
28 MPH
Top Speed
Class I,II,III available
65 Miles
Range
up to
400 lbs
Max Payload
 With 60 lb rear rack carrying capacity 
Torque
Dual Sensor
+ Cadence
5-Year Limited WarrantyBattery coverage: 2 years
Free ShippingOn qualifying online bike orders
SGS CertifiedUL 2271 battery + UL 2849 system
14-Day Returns*Online purchases only. See returns policy.

The Cosmic Jay Packs a Moto feel Into a Utility Ebike

Introducing the all new Cosmic Jay, a rugged fat tire electric bike from Euphree, built to carry anything and go anywhere. From asphalt paths to country gravel roads, the Cosmic Jay will power your way across all terrains. The BMX style bars and compact frame deliver an old school, mini bike ride experience that zips you wherever you need to go.


The unique geometry gives you a comfortable upright ride by bringing your pedals slightly forward. The wide 20x4" CST low pressure fat tires provide a stable platform with plenty of give. Cruise on the Cosmic Jay for a fun utility electric bike with a moto feel.

Ride Position

The Cosmic Jay has an upright comfortable ride position with a low step over frame, pedals forward geometry and 150 mm cranks.

The Upright Position Keeps Riding Relaxed

Forward set pedals and BMX style bars let you sit naturally with a clear view of the road ahead.

Low Standover, Easy On and Off

The step through frame keeps the standover height at just 18 inches, so you mount and dismount without swinging a leg high.

Short Cranks Keep Pedaling Smooth

The 150 mm cranks shorten your pedal stroke for an easy spin and a fit that stays closer to the ground.

Motor & Power

Ride on a powerful 750W Bafang hub motor with 90 Nm of torque, a Shimano drive train on large 203 mm Tektro brake rotors.

The Bafang Motor Does the Heavy Lifting

A 750W Bafang geared hub motor delivers whisper quiet power up to 28 mph, with torque and cadence sensors that respond to every pedal stroke.

Eight Speeds Keep Every Ride Easy

The Shimano Altus derailleur pairs an 8 speed 10-32T freewheel with a 50T chainring and 150 mm cranks for smooth shifting wherever you ride.

Hydraulic Brakes Keep You in Control

Tektro E350 stopping power grips 203 mm rotors front and rear, with adjustable levers and motor cut off for confident braking at any speed.

Utility

Whether its to the local store to pick up a few things or an all day excursion, the Cosmic Jay can haul it all.

Full Fenders Keep the Mud Off

Matte aluminum full coverage fenders block spray from any road, while the 200 lumen dual beam headlight and brake activated rear light with 220 degree visibility keep you seen day or night.

Built In Storage Comes Standard

The Cosmic Jay includes a small compartment that keeps your everyday essentials secure and within reach on the bike.

The Rear Rack Hauls Up to 60 Pounds

Load the aluminum deck with whatever the day calls for, or add a Euphree basket or trunk bag when you need more organized carrying.

Suspension & Comfort

The rugged 20x4" low pressure tires provide puncture resistance and cushion on any surface. The front fork and seat post suspension will make a country road feel like butter.

Wide Tires Handle Every Surface

The 20x4" CST low pressure tires are puncture resistant and spread a stable footprint with plenty of give, gripping everything from pavement to gravel.

The Front Fork Absorbs the Road

An RST suspension fork with 100 mm of travel, preload adjustment, and lockout takes the hit from potholes and lets you firm things up on smooth pavement.

The Seatpost Smooths Out the Ride

An SR Suntour NCX suspension seatpost with 50 mm of travel pairs with the Velo Plus comfort saddle to cushion the ride beneath you.
Complete Your Ride Shop All Accessories
Euphree Stem Bag - euphree
Euphree Stem Bag $32.99
Euphree Trunk Bag - euphree
Euphree Trunk Bag $85.00
Euphree Combination Steel Folding Lock - euphree
Euphree Combination Steel Folding Lock $74.99

Warranty & Support

5 Year Manufacturer Warranty

The 5 year limited warranty protects the motor, controller, display, and more against manufacturing defects for miles of worry free riding.

USA Quality Control & Customer Service

Every Euphree ebike is designed in the USA, built with premium name brand components, and when you need help, you reach real people who ride what they sell.

Nationwide Dealer network

Over 180 partner bike shops across the country offer test rides, professional assembly, and service, so expert help is never far from home.

Technical Specifications

General Information

Model
Cosmic Jay
Range
Up to 65 miles
Top Speed
28 mph (Class 3)
Weight
77 lbs
Total Capacity
400 lbs
Sensors
Torque & Cadence
Certification
SGS Certified to meet UL2271 (battery) & UL2849 (system)

Electronics

Motor
750W Bafang Geared Hub
Battery
48V, 15Ah (720Wh) LG Cells
Controller
Custom 48V / 25A
Display
Left-Side Color LCD
Headlight
200 Lumens Dual Beam LED
Rear Light
Brake Signal, 220 Deg Visibility
Throttle
Left Thumb Throttle
USB Port
Type-C Port
Charger
48V, 2 Amp

Drivetrain

Derailleur
Shimano Altus
Freewheel
10-32T, 8 Speed
Chain
KMC Z7 Stainless Steel
Crankset
150 mm Aluminum Alloy
Chainring
50T
Pedals
Aluminum Alloy w/ rubber grip
Brakes
Tektro E350 Hydraulic
Brake Levers
Adjustable w/ motor cut off
Rotors
203 mm Front & Rear

Cockpit

Handlebar
Aluminum Alloy, BXM Style
Grips
Ergonomic Locking Grips
Stem
60 mm
Bell
Brass Signal Bell
Shifter
Shimano 8 Speed Trigger Shifter

Suspension & Wheelset

Front Fork
RST 100 mm travel, Pre load & Lockout
Seatpost
SR Suntour NCX Suspension, 50 mm travel
Saddle
Velo Plus Comfort - Black
Tires
CST 20 x 4"
Rims
Aluminum, Double Walled
Spokes
13G Front / 12G Rear
Front Hub
Thru-Axle

Accessories

Fenders
Matte, Aluminum, Full Coverage
Kickstand
Aluminum Alloy, Adjustable Plastic Boot
Rear Rack
Aluminum, 60 lb max
Phone Mount
SP Connect

Sizing Guide

Frame & Geometry

Material
6061 Aluminum Alloy
Frame Style
Step-Through
Rider Height
5' - 6'
Seat Tube
14"
Standover Height
18”
Wheelbase
47"
Total Length
68"
Saddle Min/Max Height
30 - 37"
Handlebar Height
43"
Rider Reach
18"
Max Payload
400 lbs
Total Bike Weight
77 lbs

Take the Cosmic Jay with you

Download the Cosmic Jay brochure for a complete overview in one place. Inside you will find both colorways, the key features that define the ride, and the full specification sheet, ready to save, print, or share.

Download PDF

Frequently Asked Questions

Who is this bike for?

TBD
What's the range?

The Cosmic Jay has a range of up to 65 miles. Actual range varies with terrain, rider weight, assist level, weather, and riding conditions.
How heavy is it?

The Cosmic Jay weighs 77 lbs.
Can I service it locally?

Yes. We partner with 170+ USA dealers for professional service and test rides. Find a dealer near you.
What warranty is included?

Bikes purchased on or after July 1, 2026 include a 5-year limited warranty on eligible components. Batteries are covered for 2 years. See full warranty details.