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Ariel Rider Kepler 52V Fat Tire E-bike

Ariel Rider Kepler 52V Fat Tire E-bike

4.7· 592 ratings

Best price now

$1,399.00at Ariel Rider EbikesObserved at 12:20 AM

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Our take on the Ariel Rider Kepler 52V Fat Tire E-bike

The Kepler is Ariel Rider's fat-tire commuter e-bike, built on an AL 6061 aluminum frame in high-step or low-step shapes with 26 x 4 in fat tires and 80 mm of front suspension. It runs a 52V system with a claimed 28+ mph top speed and up to 75+ miles of range, and it weighs 73 lb. The best new price is $1,399 at Ariel Rider Ebikes as of November 4, 2026, and only one store lists it new.

Best forCommuters who want a fast, stable rideRiders mixing city streets with trails and dirtHeavier or taller riders who want a sturdy frameBuyers who prefer a low-step frame for easy mounting
Pros
  • 52V system with a claimed 28+ mph top speed
  • Up to 75+ miles of claimed range
  • 26 x 4 in fat tires handle pavement, dirt and gravel
  • 80 mm front suspension softens rough roads and trails
  • High-step and low-step frame options
  • Water-resistant connectors and wire harness
Cons
  • 73 lb is heavy to lift, carry or store
  • Fat tires add rolling resistance and cost more to replace
  • Only one store lists it new, so price competition is thin
  • 28+ mph is above the legal limit in many places

Ariel Rider Kepler 52V Fat Tire E-bike prices at every store

  • Ariel Rider EbikesNew

    In stock

    $1,399.00Observed at 12:20 AM
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Ariel Rider Kepler 52V Fat Tire E-bike price history

Lowest price we've seen: $1,399.00 on Nov 4 at Ariel Rider Ebikes. Tracked across 1 store since Nov 4.

What reviewers say

Rated 4.7 out of 5 from 592 ratings, the Kepler draws praise for its power, range and stable fat-tire ride. Owners most often flag the weight and the size of the bike as drawbacks.

Pros
  • Strong acceleration and high top speed
  • Long real-world range on a charge
  • Stable, confident ride on rough surfaces
  • Solid build quality
Cons
  • Very heavy at 73 lb
  • Bulky to store and transport
  • Fat tires wear and cost more to replace

Specifications

Intended Use
Commuting
Usage Terrain
Trails, Off-road
Suitable Terrain
Trails, City, Off-road, Off-road trails
Typical Users
Daily commuter, Adventurous weekend rider
Range
Up to 75+ Miles per Charge, 35-75+ Miles Range
Maximum Speed
28+ Mph (Where legally allowed)
Riding Style
Commuting, Venturing off-road
Bike Type
ebike
Design Material
Aluminum (rear rack), AL 6061 (Frame)
Weight
73 lb
Design Highlights
Water Resistant Connectors and Wire Harness
Dimensions
74 in (Total Length)
Frame Material
AL 6061
Frame Type
Low-Step, High-Step
Frame Shape
Low-Step, High-Step
Wheelbase
46.2 in (HIGH-STEP)
Tire Diameter
26 in
Tire Width
4 in
Tire Type
Fat Tires
Tire Highlights
Fat tire
Suspension Type
Front suspension
Front Suspension Travel
80 mm

Questions and answers

Is the Ariel Rider Kepler worth it at $1,399?
At $1,399 at Ariel Rider Ebikes as of November 4, 2026, it is a lot of motor, battery and fat-tire hardware for the money. It makes sense if you want speed and range and have space to store a 73 lb bike.
How fast does the Kepler go, and is that legal?
Ariel Rider claims 28+ mph where legally allowed. Many states and cities cap e-bike assist at 20 or 28 mph, so check your local rules before riding at full speed.
What is the real range per charge?
Ariel Rider claims up to 75+ miles, with a typical range of 35 to 75+ miles. Expect the low end if you ride fast, climb hills or carry cargo.
Should I get the high-step or low-step frame?
The low-step is easier to mount and dismount, especially with cargo or in traffic. The high-step is the more traditional frame; both use the same AL 6061 aluminum and 26 x 4 in tires.
What comes in the box?
The bike ships mostly assembled with the frame, motor, battery, fat tires and front suspension. Plan on fitting pedals, handlebars and checking bolt torque before the first ride.
When is the Kepler cheapest?
Only one store lists it new, at $1,399 as of November 4, 2026, so there is little cross-store discounting. Watch for seasonal sales from Ariel Rider directly.
Where is the Ariel Rider Kepler 52V Fat Tire E-bike cheapest?
At Ariel Rider Ebikes, for $1,399.00, as of our latest check.
What do buyers say about the Ariel Rider Kepler 52V Fat Tire E-bike?
Rated 4.7 out of 5 from 592 ratings.

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