Cyrusher Quest Mountain Electric Bike
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Full Manufacturer Backing: Cyrusher
Cyrusher builds high-performance fat tire and full-suspension e-bikes for adventure riders. As an authorized retailer, every Cyrusher we sell is backed by the manufacturer’s 2-year warranty.
Coverage Breakdown:
- 2-Year Frame, Motor & Controller: Coverage against manufacturer defects in materials and workmanship, limited to one replacement per part, per bike.
- 2-Year Battery: Coverage for defective lithium-ion batteries (excludes damage from power surges, improper chargers, or water damage).
- 2-Year Components: Hydraulic brakes, front fork, rear shock, bike computer, pedal assist sensor, charger, stem, handlebar, headset, seat post, bottom bracket, crankset, and shifting systems.
What’s Not Covered
Wear items (chains, rims, spokes, brake pads, tubes, tires, rotors, grips, seats) and gears/accessories.
How to File a Claim
Email your proof of purchase and photos/video to support@belcopia.com and our team will coordinate directly with Cyrusher.
RangeUp to 80 Miles
Speed28 mph
Battery48V 20Ah
Weight~68 lbs
DrivetrainShimano 9-Speed
MotorBafang M620 Mid-Drive
Cyrusher Quest
Mid-Drive Power. Full Suspension Freedom.
"The Bafang M620. Enough Said."
The Cyrusher Quest is the first 20 inch step through mid drive electric bike with full suspension and a Bafang M620 motor. This is not a hub motor pretending to climb trails. The M620 is a purpose built electric mountain bike motor that delivers power through the drivetrain for optimal torque multiplication and natural pedal feel.
Backed by a 48V 20Ah battery pushing range to 80 miles, the Quest handles technical trails, steep climbs, and all day adventures with the same confidence. Full suspension soaks up roots and rocks, 20 x 4.0 inch fat tires grip loose terrain, and the step through frame makes mounting easy even in technical situations. This is the off road electric bike for riders who demand real mountain bike performance.
"The Bafang M620 is the gold standard for e-MTB motors. We paired it with a step through frame because trail riding should be accessible to everyone, not just riders who can swing their leg over a high top tube. The Quest proves that accessibility and performance are not mutually exclusive."
THIS RIDE IS FOR YOU IF...
- You want a genuine mid drive electric mountain bike, not a hub motor commuter marketed as a trail bike.
- You need 80 miles of range for all day trail adventures, bikepacking, or extended off road exploration.
- You prefer a step through frame that is easy to mount and dismount on steep terrain and in technical situations.
- You demand the Bafang M620. The motor that professional e-MTB riders trust for power, reliability, and natural pedal feel.
MID-DRIVE SUPERIORITY
Power Through the Drivetrain, Not Around It
Hub motors push the wheel. Mid drive motors power the chain. The difference matters on trails. The Bafang M620 mid drive electric bike motor delivers torque through the gears, multiplying force on steep climbs the same way a car's transmission does. This gives the Quest dramatically better hill climbing ability than any hub motor e-bike.
The centered motor weight also improves balance and handling on technical terrain. You feel the bike's center of gravity where it belongs, between the wheels, not weighted toward the rear hub. Combined with full suspension and 20 inch fat tires, the Quest handles singletrack, fire roads, and technical descents with genuine mountain bike confidence.
BAFANG M620 POWERPLANT
The Motor That Conquered Mountains
The Bafang M620 is not a generic motor. It is a purpose engineered mid drive unit used by professional e-MTB builders worldwide. High torque output, smooth engagement, and intelligent pedal sensing make the Quest feel like a natural extension of your legs rather than a motorized vehicle.
Combined with a 9 speed drivetrain, the M620 delivers an enormous range of effective gearing. Low gears multiply motor torque for crawling up technical rock gardens. High gears let you cruise on fire roads at speed. The 48V 20Ah battery feeds the M620 enough energy for 80 miles of riding. All day. Any trail.
KEY FEATURES
Bafang M620 Mid-Drive Motor
Professional grade mid drive motor delivers power through the drivetrain for superior torque multiplication and natural pedal feel on climbs.
48V 20Ah Battery (80 Mile Range)
Massive battery capacity for all day trail riding, bikepacking, or extended adventures. Removable for indoor charging.
Full Suspension System
Front and rear suspension absorb roots, rocks, and trail impacts. Maintains traction and control on technical terrain.
20 x 4.0 Inch Fat Tires
Wide profile fat tires grip loose dirt, mud, sand, and rocks. The compact 20 inch diameter improves maneuverability on tight trails.
9 Speed Drivetrain
Wide gear range multiplies the mid drive motor torque for extreme climbs and provides high speed cruising on flat terrain.
Step-Through Accessibility
Low step frame makes mounting and dismounting easy on steep terrain, at trailheads, and in technical situations where balance matters.
WHY THIS BUILD MATTERS
Here is the technical breakdown of why this bike stands out.
Real Mountain Bike Performance
The Bafang M620 mid drive delivers genuine e-MTB capability. This is not a commuter bike with knobby tires. It is a trail machine.
All Day Range
80 miles per charge means the battery outlasts your legs. Ride from dawn to dusk without checking your battery percentage.
Accessible Trail Riding
The step through frame removes the fitness and flexibility barriers that keep many riders off trails. Mountain biking for everyone.
SIZING GUIDE
| Frame Size | Rider Height |
|---|---|
| One Size (Step-Through) | Fits Most Riders |
Technical Specifications
| Motor | Bafang M620 Mid-Drive, 1000W |
|---|---|
| Battery | 48V 20Ah, Removable |
| Range | Up to 80 Miles |
| Top Speed | 28 MPH |
| Pedal Assist | Multi-Level, Torque Sensor |
| Throttle | Thumb Throttle |
| Frame | Aluminum Alloy, Step-Through |
| Suspension | Full Suspension (Front Fork + Rear Shock) |
| Brakes | Hydraulic Disc Brakes |
| Gearing | 9 Speed |
| Wheels & Tires | 20" x 4.0" Fat Tires |
| Display | Color Display |
Frequently Asked Questions
What makes the Bafang M620 mid drive motor better than a hub motor?
Mid drive motors deliver power through the chain and gears, multiplying torque on climbs the same way a car transmission works. Hub motors push the wheel directly with no torque multiplication. The M620 climbs steeper grades, feels more natural, and is more energy efficient on varied terrain.
Is the Quest a real electric mountain bike?
Yes. The Bafang M620 mid drive, full suspension, fat tires, and 9 speed drivetrain make the Quest a genuine trail capable e-MTB. It handles singletrack, fire roads, and technical terrain that hub motor bikes cannot.
How far can the Cyrusher Quest go on one charge?
Up to 80 miles with pedal assist. The 48V 20Ah battery provides enough energy for all day trail riding. Actual range depends on terrain difficulty, assist level, and rider weight.
Can beginners ride the Quest on trails?
Yes. The step through frame, full suspension, and fat tires make the Quest accessible to riders of all skill levels. The pedal assist lets you focus on handling while the motor handles the power. Start on easy trails and progress as your skills develop.
Why does the Quest use 20 inch wheels instead of 26 or 27.5?
Smaller 20 inch wheels improve maneuverability on tight singletrack and technical terrain. Combined with 4.0 inch fat tires, the total wheel diameter provides good rollover capability while keeping the bike compact and agile.
What's In The Box
- Cyrusher Quest E-BikeArrives partially assembled. Attach front wheel, handlebars, pedals, and accessories.
- Battery + Charger48V 20Ah removable battery and charger included.
- AccessoriesHeadlight, taillight, pedals, and assembly tools included.
COMPARE CYRUSHER FULL SUSPENSION E-BIKES
Roam
|
Trax 2.0
|
Quest
|
|
|---|---|---|---|
| Motor | 750W Hub, 95Nm | 750W Bafang Hub | Bafang M620 Mid-Drive 1000W |
| Battery | 52V 15.6Ah | 52V 20Ah (1040Wh) | 48V 20Ah |
| Range | 62 mi | 75 mi | 80 mi |
| Sensor | Torque | Torque | Torque |
| Suspension | Full (Front + Rear) | Full (DNM Air Shock) | Full (Front + Rear) |
| Brakes | 180mm Hydraulic | Tektro 4-Piston | Hydraulic Disc |
| Tires | 26" x 4.0" Fat | 26" x 4.0" Fat | 20" x 4.0" Fat |
| Frame | Step-Through | Step-Through | Step-Through |
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