Biktrix Juggernaut Hub Duo Step-Over 2 vs Cyrusher XF900 Mountain Motorcycle-Style
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 price, same torque, same class of motor, so this comes down to whether you'd rather carry more battery (Juggernaut) or less weight (XF900), and the Genius scores are close enough that either is a defensible pick.
Buy the Biktrix Juggernaut Hub Duo Step-Over 2
Buy the Juggernaut if range is what keeps you up at night: more battery, a higher claimed range, and a 9-speed drivetrain that gives you finer gearing for long or hilly rides.
Buy the Cyrusher XF900 Mountain Motorcycle-Style
Buy the XF900 if you want the lighter bike to haul up steps or into a truck bed, and you can live with a smaller battery and simpler 7-speed drivetrain for the same money.
The differences that matter
- Biktrix Juggernaut Hub Duo Step-Over 2 carries 94 Wh more battery, which is the main thing that sets how far you get.
- Cyrusher XF900 Mountain Motorcycle-Style is 11 lb lighter, which you notice lifting it or carrying it up steps.
- Biktrix Juggernaut Hub Duo Step-Over 2 claims 8 more miles of range, though both figures are the manufacturer's optimistic "up to" number.
Who each one is for
Biktrix Juggernaut Hub Duo Step-Over 2
Riders who want one bike that handles snow, sand, gravel, and trails, and care more about range and durability than raw climbing punch.
Cyrusher XF900 Mountain Motorcycle-Style
Riders who want a rugged, throttle-equipped fat-tire bike for mixed off-road fun and don't need to squeeze every last mile out of a charge.
Spec by spec
| Spec | Biktrix Juggernaut Hub Duo Step-Over 2 | Cyrusher XF900 Mountain Motorcycle-Style |
|---|---|---|
| Price | $2,299 | $2,299 |
| Motor (nominal) | 750W | 750W |
| Torque | 80 Nm | 80 Nm |
| Battery | 910 Wh | 816 Wh |
| Claimed range | 70 mi | 62 mi |
| Weight | 85.8 lb | 75 lb |
| Max payload | 330 lb | 330 lb |
| Motor type | hub | hub |
| E-bike class | Class 2 | Class 2/3 |
| Brakes | Hydraulic disc, Star union dual piston w/180mm rotors | Tektro/Zoom hydraulic 180mm disc brakes front + rear |
| Drivetrain | Shimano CUES 9-speed | Shimano 7-speed |
| Tire size | 26x4 | 26" x 4.0" |
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
Biktrix Juggernaut Hub Duo Step-Over 2
What's good
- The 910Wh battery is genuinely big for a fat bike, so the claimed 70 miles gives you a real buffer for long backcountry loops.
- 80 Nm of torque pulls a loaded bike away from a dead stop and up moderate grades without a fight.
- The parts punch above the price: Star Union dual-piston hydraulic disc brakes on 180mm rotors and a 9-speed Shimano CUES drivetrain are a step up from what usually shows up here.
What to know
- Power is the soft spot for its class. This hub motor pulls well from low down but lacks the top-end bite of stronger rivals, and Biktrix doesn't publish a peak wattage, so it can feel taxed on the longest, steepest climbs.
- Value is only okay for the class. A few rivals deliver similar all-terrain range for a little less money.
Cyrusher XF900 Mountain Motorcycle-Style
What's good
- A genuinely tough build: hydraulic disc brakes front and rear, puncture-resistant fat tires, and a frame made to take a beating.
- 80 Nm of torque pulls a loaded bike up dirt climbs from a standstill without bogging down.
- A throttle lets you launch from a stop or cruise along without turning the pedals.
What to know
- Acceleration off the line is only middling for the price, so a rival with a punchier motor will pull ahead when you both launch from a stop.
- Range is a genuine soft spot: even against other fat-tire off-roaders at this price, the XF900 doesn't go as far between charges, so demanding terrain has you planning around the battery.
Full Biktrix Juggernaut Hub Duo Step-Over 2 review → Full Cyrusher XF900 Mountain Motorcycle-Style review →