
Cyrusher | Zenith All-Terrain Fat Tire E-Bike - Black+Titanium
The Cyrusher Zenith runs on a 52V 20Ah Samsung 21700 battery (1040Wh) - one of the largest capacity packs in its class - delivering up to 75 miles per charge on pedal assist and 45+ miles on throttle alone. The ASYNC 750W rear-hub motor (1280W peak, 80 Nm) pairs with a torque sensor for proportional power delivery that feels natural from the first pedal stroke, whether you are climbing grades or cruising flat roads.
Full dual suspension - an oil-spring front fork and air shock rear (165x750 lbs) - paired with Chaoyang 26x4-inch fat tires absorbs rough pavement, gravel, and trail debris so the ride stays smooth without beating up your joints. A 6061 aluminum alloy frame with internal battery routing keeps the profile clean and the center of gravity low. Available in both step-over and step-through frames to fit rider preference, with a 350 lb payload capacity.
- 1040Wh Samsung 21700 Battery - 52V 20Ah delivers up to 75 miles per charge on pedal assist, 45+ miles on throttle, with 7-8 hour charge time
- ASYNC 750W Motor with Torque Sensing - 1280W peak power and 80 Nm torque with proportional pedal-assist response for natural riding feel
- Full Dual Suspension - Oil-spring front fork and air shock rear suspension (165x750 lbs) smooth out rough terrain and reduce rider fatigue
- Chaoyang 26x4-Inch Fat Tires - Wide contact patch grips pavement, gravel, sand, and light trails with confidence
- Shimano 7-Speed Drivetrain - SL-TX50-7R shifter with Shimano rear derailleur for reliable mechanical range across terrain
- Logan Hydraulic Disc Brakes - 2-piston calipers with 180mm rotors front and rear for consistent stopping in all conditions
- Dual Frame Options - Available in step-over and step-through configurations for riders 5'1" to 6'4"
Electronic Specifications
- Motor: ASYNC 52V 750W (1280W peak, 80 Nm torque)
- Sensor: Torque
- Throttle: Twist throttle
- Battery: Samsung 21700, 52V/20Ah (1040Wh)
- Range: Up to 75 miles (pedal assist), 45+ miles (throttle)
- Top Speed: 28 MPH (throttle)
- Charging Time: 7-8 hours (2A charger)
- Weight: 66 lbs
- Display: 3.7-inch color LCD smart computer
- Dashboard: 1.7-inch TFT
Mechanical Specifications
- Frame: 6061 aluminum alloy with internal battery
- Tires: Chaoyang 26" x 4" fat tires
- Front Fork: Oil and spring suspension fork
- Rear Suspension: Air shock 165x750 lbs
- Brakes: Logan hydraulic disc brakes, 2-piston caliper, 180mm front + rear
- Derailleur: Shimano 7-speed rear derailleur
- Gearing: Shimano SL-TX50-7R, 7-speed
- Crankset: 170mm forged 52T alloy dual-sided aluminum
- Chain: KMC stainless chain
- Handlebar: ASYNC aluminum integrated handlebar and stem, 31.8mm, 620mm
- Rims: Aluminum alloy
- Spokes: 12-gauge stainless steel
- Saddle: Breathable ergonomic sport cushion seat
- Seat Post: 33.9mm, adjustable height
- Kickstand: 6061 aluminum
- Wheelset: 26-inch
- Payload Capacity: 350 lbs
- Rider Height: 5'1" - 6'4"
Geometry (26.5-Inch Frame)
- Reach: 16.9"
- Stack: 24.6"
- Head Tube Angle: 68.5 degrees
- BB Height to Hub: 1.8"
- Wheelbase: 47.8"
- Chain Stay: 19.7"
- Seat Height Range: 33.7" - 41.7"
- Stand Over: 30.5"
Warranty
- Frame: 2 years
- Parts: 1 year
- Battery: 1 year
- --- This Variant ---
- Color: Black+Titanium