Cyrusher | Zenith All-Terrain Fat Tire E-Bike

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