Cyrusher Quest vs Biktrix Juggernaut Ultra Duo Pro Step-Thru
Two off-road e-bikes at a similar price, compared on the same normalized specs. Both scored by us, both reviewed in full.
The verdict
Same motor, same torque, near-identical Genius scores, so this comes down to whether you'd rather save $447 and get more range (Quest) or carry less weight and step through the frame (Juggernaut).
Buy the Cyrusher Quest
Buy the Cyrusher Quest if you want the longer claimed range and Class 3 speed for less money: it's $447 cheaper and rated for 25 more miles, plus it carries more payload (440 lb vs 380 lb).
Buy the Biktrix Juggernaut Ultra Duo Pro Step-Thru
Buy the Biktrix Juggernaut Ultra Duo Pro Step-Thru if the step-thru frame and lighter 88.5 lb body matter more than range or price: it's 16 lb lighter to lift or carry up steps, has a bit more battery capacity (1040 Wh vs 960 Wh), but costs more and claims less range.
The differences that matter
- Cyrusher Quest costs $447 less.
- Biktrix Juggernaut Ultra Duo Pro Step-Thru is 16 lb lighter, which you notice lifting it or carrying it up steps.
- Cyrusher Quest claims 25 more miles of range, though both figures are the manufacturer's optimistic "up to" number.
Who each one is for
Cyrusher Quest
Riders who want a genuinely capable all-terrain machine for steep, mixed, technical riding and don't need to carry it far.
Biktrix Juggernaut Ultra Duo Pro Step-Thru
Riders who tackle steep, rough terrain and want serious climbing power in a frame that's easy to step onto.
Spec by spec
| Spec | Cyrusher Quest | Biktrix Juggernaut Ultra Duo Pro Step-Thru |
|---|---|---|
| Price | $2,599 | $3,046 |
| Motor (nominal) | 1,000W | 1,000W |
| Torque | 160 Nm | 160 Nm |
| Battery | 960 Wh | 1,040 Wh |
| Claimed range | 80 mi | 55 mi |
| Weight | 104.2 lb | 88.5 lb |
| Max payload | 440 lb | 380 lb |
| Motor type | mid-drive | mid-drive |
| E-bike class | Class 3 | Class 2 |
| Brakes | Starunion 220Pyd 4-Piston With 203 Discs | IIIPro E500 quad-piston hydraulic brakes w/203mm rotors |
| Drivetrain | 9-Speed Shimano | Shimano Alivio 9-speed |
| Tire size | 20" x 4" | 24x4 |
Highlighted values are the better of the two where both brands publish the number. Where a spec isn't published we leave it blank rather than guess.
The short version on each
Cyrusher Quest
What's good
- A mid-drive delivering 160 Nm of torque, which is what actually gets you up steep, loose climbs
- A large 960Wh battery that backs up a claimed range of 50 to 80 miles
- A twist throttle plus pedal assist to 28 mph, so you can pedal hard or just cruise
What to know
- At 104.2 lb it's heavy even by fat-tire standards, so loading it onto a rack or carrying it upstairs is a two-person job
- As a Class 3 bike with a throttle, its 28 mph speed keeps it off some bike paths and multi-use trails that cap or ban that class
Biktrix Juggernaut Ultra Duo Pro Step-Thru
What's good
- The Bafang Ultra mid-drive puts down 160 Nm of torque, enough grunt to climb steep, loose grades that would bog down a weaker motor.
- The 1,040Wh battery is genuinely large, and an optional 910Wh extender bolts on for much longer backcountry days.
- The low step-through frame lets you get on and off easily, a real help on a heavy fat-tire bike loaded with gear.
What to know
- As a Class 2 bike the assist cuts out at 20 mph, which feels conservative for a motor with this much muscle.
- The Shimano Alivio 9-speed drivetrain is a rung below what you'd expect alongside a premium motor and battery.
Full Cyrusher Quest review → Full Biktrix Juggernaut Ultra Duo Pro Step-Thru review →