Cosmo S

  • 500 Watts Power
  • 15Ah Battery
View specs
Select color: Metallic Green

Battery Capacity

$1,999 Sold out

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Free Shipping ($200+ value)

Free shipping on all e-bikes in the Continental U.S.

Professional In-Store Or Easy DIY Assembly

Choose between:
a) Delivery to your local authorized Magnum Dealer with in-store assembly (included);
b) Home delivery & DIY assembly (included); or
c) Home delivery with at-home assembly by a local bike mechanic (starting at $149).

Expert Service & Support

There are so many ways to get in touch with our Support Team! Chat, call, or drop us an email.

Warranty Protection Up To 5 Years

1-Year limited warranty (included), plus extended product protection plans available for 2, 3 and 5 years (starting at $210).

15-Day No Risk Returns

Ride your e-bike up to 10 miles on us. Don’t love it? Enjoy hassle-free returns within 15 days of delivery.

The Magnum Cosmo S

Work hard and play harder—with budget-friendly style. The Magnum Cosmo S has a light low step frame with a fully integrated battery. The power system is 48 Volts running on a 500 Watt motor and a 15Ah battery for the range and power you need to run errands or go on a relaxing bike ride.


  • Category Touring
  • Class Can be configured to a Class 1, 2, or 3 E-Bike.
  • Frame Type Low-step
  • Seating Relaxed
  • Perfect For Paved / Light Trails / Recreation


Long-range (up to 50 miles) battery for the freedom and power to tackle longer rides.


50 miles (80 Kilometers) Max Range

7.5 Hours Charge Time


Low-step geometry

Designed and built with the city and commuter cyclist in mind, the low-step frame design is a breeze to mount and dismount, and it comes in stylish colors with a sleek, integrated battery.

Component Overview

Motor Brand


Motor Type

Rear Hub-Drive

Motor Nominal Output

500 Watts

Motor Peak Output

750 Watts

Battery Brand

Samsung Cells

Battery Voltage

48 Volts

Battery Ah


Battery Wh


Battery Chemistry


Battery Charge Time (from empty)

7.5 Hours

Minimum Range

30 Miles (48 Kilometers)

Maximum Range

50 miles (80 Kilometers)

Display Type

Magnum Branded VeloFox, 8 x 7 cm. Display Screen, Backlit Monochrome LCD

Display Readouts

Battery Level, Assist Level, Current Speed, Power Output, Trip Distance, Odometer, Range, Trip Time

Display Accessories

Drive Mode

Cadence Sensing Pedal Assist, Trigger Throttle, Walk Mode

Top Speed

25 mph with Pedal Assist, 20 mph with Throttle


Display-Activated Front and Rear Lights

Frame material

Aluminum Alloy

Frame size

18” (46 cm)

Frame Type

Fork Details

SR Suntour NVX30 Suspension Fork with Preload Adjustment and Lockout

Gearing details

Shimano 7 Speed

Shifter Details

Shimano 7 Speed


Aluminum Alloy, 52T, 170mm




Adjustable Alloy


Mechanical Disc Brakes


Ergonomic Faux Leather Black


Magnum Comfort

Tire Brand

Kenda 26 x 2.35

Wheel size



Front and Rear Included



Seat Tube

18” (46 cm)


14.75” (37.5 cm)

Stand Over Height

22.5” (57 cm)

Virtual Top Tube Length

22” (56 cm)

Min Saddle Height

21.75” (55 cm)

Max Saddle Height

28” (71 cm)


25.75” (65 cm)


44” (112 cm)


70.5” (179 cm)

Total Weight

60.5 lbs (27.5 kg)

Battery Weight

8.5 lbs (3.9 kg)

Recommended Minimum Rider Height



Rear-Stay Mounted Kickstand




48 Volts / 2 Amps

Front Rack

Optional Front Rack (Not Included)

Rear Rack

Includes Rear Rack


Includes Front and Rear

Accessory Mounts

Front Rack Mounts, Rear Rack Mounts, Front and Rear Fender Mounts

Cosmo S videos

  • Explore The Series
  • Technical Overview

Cosmo Series | Overview And Differences

Our product specialist points out which specs the Cosmo, Cosmo S, and Cosmo X have in common as well as their key differences.

In-Depth Review of The Magnum Cosmo

Epic Cycles shows the many features of the Magnum Cosmo S, including the easily mounted step-thru frame, the stunning paint jobs, the brake activated tail light, the well-designed and clean cockpit, and the powerful, integrated battery.

Any questions?

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Cosmo SMetallic Green

  • 500 Watts Power
  • 15Ah Battery