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RangeUp to 60 Miles
SpeedUp to 28 MPH
Battery52V 15Ah LG
Weight75.6 lbs
DrivetrainShimano 7-Speed
Motor750W Hub (80Nm)
Cyrusher Zenith
750W Front-Suspension Fat Tire All-Terrain Electric Bike
"The Trail on Saturday and the Commute on Monday Ask for the Same Thing. This Answers Both."
Most bikes make you choose. A road bike that panics on gravel. A mountain bike that feels like overkill on the way to work. The Cyrusher Zenith is the fat tire electric bike that refuses to pick a lane. Four inch all terrain tires and a front suspension fork soak up the rooty singletrack on the weekend, then shrug off the pothole the city has been ignoring on your Monday ride in.
Under you sits a 750W electric bike motor with 80Nm of torque, fed by a removable 52V 15Ah battery good for up to 60 miles. It climbs, it hauls, it hits 28 MPH, and it does the whole thing on a step over aluminum frame that is easy to throw a leg over at a stoplight. And it costs $1,299. That is the part that surprises people.
"People shopping fat tire ebikes usually assume they are buying a weekend toy that is miserable for daily use, or a commuter that falls apart the second it leaves pavement. The Zenith is the rare one that is honestly good at both. The switchable sensor is why. Torque mode makes it feel like an athletic trail bike. Flip to cadence and it becomes an effortless cruiser for the ride to work. Same bike, two personalities."
BUILT FOR RIDERS WHO
- You want one bike that handles the Saturday trail and the Monday commute without owning two
- That stretch of broken pavement on your route beats up your wrists and you are done feeling every crack
- You gave up on fat tire ebikes because the good ones cost three grand and the cheap ones feel like toys
- You want a bike that is easy to step over and mount, even loaded down with a backpack at a red light
- You like the idea of switching between a workout and a cruise with one button, depending on the day
THE TIRES DO THE WORK
Four Inches of Suspension You Never Have to Charge
Before the fork ever moves, the 26 inch by 4.0 inch fat tires are already absorbing the road. Run them a little soft and they flatten over gravel, sand, snow, and curb edges like nothing happened. Pair that with a front suspension fork and the rough stuff that used to rattle your hands just disappears. This is why a fat tire e-bike feels planted where a skinny tire commuter feels nervous.
The frame holding it together is 21 inch 6061 aluminum with a step over diamond shape. Low enough to mount without a ceremony, stiff enough to put all 80Nm of torque to the ground without flex. It carries up to 350 lbs of rider and gear, so loading a pannier and a backpack for a grocery run is a non event.
TWO BIKES IN ONE BUTTON
Switchable Torque and Cadence Sensor
Here is the feature that earns the Zenith its keep. Most ebikes pick one sensor and you live with it. The Zenith lets you switch. In torque sensor mode, the motor reads exactly how hard you are pushing and answers in kind. Lean into the pedals and it surges. Soft pedal and it eases off. It feels like your own legs got stronger, which is what makes a trail ride feel like riding instead of motoring.
Then Monday comes and you do not want a workout. One press switches to cadence mode, where the assist stays smooth and constant the moment you start spinning. Twist the throttle if you want to skip pedaling entirely. It is the difference between a bike that does one thing and a bike that meets you where your legs are that day.
KEY FEATURES
750W Hub Motor, 80Nm Torque
Brushless gear hub motor with 80Nm of grunt for climbing and quick starts. Quiet up to 28 MPH, with a torque sensor that makes the power feel like it came from your own legs.
52V 15Ah LG Battery, 60 Miles
Premium LG 21700 cells, 780Wh, up to 60 miles per charge. Lifts off the frame so you can carry it inside and top it off at your desk. Full charge in 7 to 8 hours.
Hydraulic Disc Brakes
Wet Tuesday, a car pulls out, you squeeze the lever and stop now. Two piston hydraulic discs do not care about rain or how much you are hauling. No cables to stretch, no fade on a long descent.
Integrated LED Lights
Front headlight and rear light wired in, not clipped on as an afterthought. You get seen on the early ride out and the dark ride home without remembering to charge a separate set.
26 x 4.0 Fat Tires + Front Fork
Four inches of rubber acting as your first layer of suspension. Gravel, sand, snow, broken pavement. The tires eat them so your hands do not feel them, and the suspension fork handles the rest.
Shimano 7-Speed + Color LCD
A wide enough gear range to spin up a climb or stretch out on the flats, with weatherproof Shimano shifting. The mid mounted color LCD keeps speed, battery, and assist level in plain sight.
WHY THIS BUILD MATTERS
The Zenith is built for the rider who wants one capable bike instead of two compromises. Here is the technical case for why it pulls double duty without faking either job.
Genuinely All-Surface
The 26 x 4.0 fat tires plus a front suspension fork give you real float over sand, gravel, snow, and rough city streets. This is not a road bike with knobby tires bolted on. It is a platform designed to stop caring what is under the wheels.
A Sensor for Every Mood
The switchable torque and cadence sensor is normally a feature you pay a premium for. Torque mode stretches real world range by matching power to effort instead of dumping full assist the instant you pedal. Cadence mode and a throttle are there for the days you just want to arrive.
The Price Actually Makes Sense
A capable fat tire electric bike with a name brand LG battery, hydraulic brakes, and a torque sensor usually starts well north of $2,000. The Zenith lands at $1,299. Not a stripped down loss leader. The real bike, at a price that does not require a second thought.
| Motor | 750W Brushless Hub Motor, 80Nm Torque |
|---|---|
| Battery | LG 21700, 52V 15Ah (780Wh), Removable |
| Range | Up to 60 Miles (varies by assist, terrain, rider weight) |
| Top Speed | 28 MPH |
| Sensor | Switchable Torque + Cadence |
| Throttle | Twist Throttle |
| Frame | 21" 6061 Aluminum, Step-Over Diamond |
| Fork | Front Suspension |
| Brakes | Hydraulic Disc, 2-Piston |
| Gearing | Shimano 7-Speed |
| Wheels & Tires | 26" x 4.0" All-Terrain Fat |
| Display | Mid-Mounted Color LCD |
| Lights | Integrated LED Front & Rear |
| Charging Time | 7-8 Hours (2A) |
| Weight | 75.6 lbs (34.3 kg) |
| Max Payload | 350 lbs |
| Certification | CE Certified |
| Warranty | Frame 2 Years, Parts 1 Year, Battery 1 Year |
Is the Cyrusher Zenith good for both trails and commuting?
That is exactly what it is built for. The 26 by 4.0 fat tires and front suspension fork handle gravel, dirt, and sand on the weekend, then make broken city pavement feel smooth on your commute. Switch the sensor to torque mode for a workout on the trail, cadence mode for an easy cruise to work. One bike, both jobs.
What is the real range on a charge?
Up to 60 miles from the 52V 15Ah (780Wh) LG battery. Real world numbers depend on assist level, terrain, rider weight, and how much you use the throttle. If your round trip commute is 10 miles, that is most of a work week on a single charge. Lean on the throttle and climb a lot of hills and it comes down, like any ebike.
What does the switchable torque and cadence sensor actually do?
A torque sensor measures how hard you push and feeds the motor power to match, so it feels natural and athletic and stretches your range. A cadence sensor just gives steady assist the moment you start pedaling. Most ebikes have one or the other. The Zenith lets you switch between them with a button, so the bike matches your mood that day.
How fast is it, and is it Class 2 or Class 3?
Top speed is 28 MPH. It has a twist throttle plus pedal assist, so depending on how you set it up it covers Class 2 throttle riding and Class 3 pedal assist speeds. Check your local ebike rules, since some trails and paths cap at 20 MPH.
Does this fit other brands accessories, or only Cyrusher?
The Zenith uses a standard 26 inch fat tire platform, so universal accessories like phone mounts, lights, and fat tire fenders generally fit. Brand specific batteries and racks built for other bikes will not. Browse our Cyrusher collection for parts and accessories matched to this bike.
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Cyrusher Zenith E-BikeArrives about 85% assembled. Attach the front wheel, handlebar, pedals, and seat. Roughly 30 to 45 minutes and you are rolling.
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Battery + ChargerRemovable 52V 15Ah LG battery and a 2A charger. Plug in for 7 to 8 hours and you are set for the week.
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Tool Kit + HardwareEvery tool needed for assembly plus the mounting hardware. Nothing extra to buy before the first ride.
