Zenith Fat Tire E-Bike

RangeUp to 60 miles on pedal assist from the 780Wh battery, by Cyrusher.

Speed28 MPH top speed. Cyrusher lists it as Class 2 or 3.

Battery52V 15Ah of LG 21700 cells, 780Wh, inside the frame, UL 2271 certified.

Weight75.6 lb with the battery, which is 9.9 lb of that, rated to carry 350 lb.

DrivetrainShimano 7 speed with a torque or cadence sensor you switch on the display.

Motor52V 750W brushless rear hub motor with 95 N.m for hills.

Cyrusher Zenith Overview

The Cyrusher Zenith is a step over fat tire e-bike for trails and the city: a 52V 750W rear hub motor with 95 N.m, a sensor you can switch between torque and cadence, and a 52V 15Ah battery of LG 21700 cells, 780Wh, sealed inside the down tube. Cyrusher rates it at 28 MPH and up to 60 miles.

A coil spring suspension fork with a lockout carries the front over gravel, sand and broken pavement on 26 x 4 fat tires. Logan hydraulic disc brakes on 180mm rotors stop it and a Shimano 7 speed covers the climbs. It weighs 75.6 lb with the battery and carries 350 lb.

One size fits riders 5'1" to 6'4" over a 30 inch standover. Want the same bike with a frame you step through? That is the Aura.

Built to be lived with

An aluminium step over frame with the battery inside, a coil spring fork with lockout, Logan hydraulic disc brakes on 180mm rotors, a Shimano 1x7 drivetrain and 26 x 4 fat tires on a 26 inch wheelset.

A mid mounted colour LCD, headlight, brake light and kickstand all come on the bike, with a toolkit box and keys in the box. The electrical system is UL 2849 and UL 2271 certified. Frame, motor and controller are covered for two years, battery and parts for one.