Cyrusher Trident Review: A 160 Nm Fat-Tire Climber for $4,099
A genuinely powerful fat-tire climber with a big battery and the torque to grind up steep, rough ground far from pavement.
The Cyrusher Trident is for riders who want to point a fat-tire bike at a steep, rocky climb and simply keep going. The heart of it is a motor putting out , which is serious climbing power for loose, steep ground where a lot of e-bikes start to bog down. Pair that with 26x4 fat tires and a big battery and you've got a machine meant for full days away from pavement.
It's a bike with a , so you can ride without pedaling up to 20 mph and open it up to 28 mph once you switch to the top setting. All that capability earns a Genius Score of 71 out of 100. The score isn't higher mainly because value is middling for the segment, since a few rivals get you solid power and range for less, so this makes the most sense if steep-terrain performance is genuinely your priority.
Pros & cons
What we like
- One of the strongest motors you'll find on a fat-tire bike: from the Bafang M620 for steep, technical climbing.
- A large 1,040Wh backs up the claimed 75-mile range, so real all-day rides are on the table.
- Four-piston with big 203mm rotors give you the stopping power a heavy, fast bike needs.
- A 440-pound means a heavier rider can load up gear without getting near the limit.
- A plus a switchable class lets you cruise without pedaling and tune the top speed to local rules.
Worth weighing
- At 101.3 pounds it's heavy even for a fat-tire bike, so getting it onto a car rack or up a step is a two-person job.
- Cyrusher doesn't publish figures, which is a gap worth asking about on a bike sold for rough terrain.
Key specs
The motor & power
Power is the whole reason this bike exists. The Bafang M620 puts out , and on a fat-tire bike that's a big number. Drop into a low gear on a steep, loose climb and it keeps pulling hard where a hub motor would start to run out of steam.
The motor is rated at 1,000 watts , which is a lot of steady output to work with. Cyrusher doesn't publish a figure, so judge the bike on that 1,000W steady rating and the 160 Nm rather than a burst number.
In practice, this is a climber first. It'll feel like plenty of bike on flats and gentle trails, but the reason to buy it is the steep, rough stuff.
Range & battery
The 52V, 20Ah pack works out to a 1,040Wh , which is genuinely large. That size is what lets Cyrusher quote a of up to 75-plus miles on a charge.
Treat the 75-mile figure as a best case on easy ground. Fat tires, real climbs, a heavy load, and steady use all eat into that, so plan a hard off-road loop around something more conservative.
Ride & components
The parts here match the bike's job. Braking comes from Starunion 220PYD four-piston with 203mm rotors front and rear, which is the right level of stopping muscle for a fast, heavy bike loaded with gear. Shifting is handled by a 10-speed Shimano drivetrain, giving you the low gears you'll want for slow, steep climbing.
The 26x4 Kenda fat tires are puncture-resistant and give you a big, cushioned contact patch for sand, snow, and rock. One thing to note: Cyrusher doesn't list suspension travel, so if a plush ride over rough ground matters to you, confirm the fork spec before you buy.
The Trident is one bike you can flip between in the settings, not two different models. In the Class 2 setting the is live and assist tops out around 20 mph, which is usually what keeps you legal on shared bike paths and multi-use trails. In Class 3, runs up to 28 mph, which is faster but generally meant for roads and bike lanes. You pick the setting to match wherever you're riding that day.
Price & value
At $4,099 the Trident sits firmly in premium territory, and that's about what serious capability like this costs. You're paying for the motor's climbing power, the oversized battery, and heavy-duty brakes, so the money lands where it matters for off-road use.
As a pure value pick it's middling, since a few rivals get you decent power and range for less. What you're really buying here is the 160 Nm of climbing muscle and a few bikes in the class reach.
Who it's for
The steep-and-technical trail rider
If your rides involve real climbs, loose rock, and grades that make lesser motors struggle, this is where the Trident earns its keep. The and of pulling power are built for exactly that kind of ground, and the big battery means you can chase a long, hard loop without babying the charge.
The gear hauler who wants to skip the pedaling
If you head out loaded with camping, hunting, or fishing gear, there's room for a heavier rider and a full haul without crowding the payload limit. And because it has a , you can pull away from a dead stop on a hill or cruise a fire road without pedaling when your legs are done.
The apartment or car-rack commuter
If you'd have to carry this up stairs or hoist it onto a hitch rack by yourself, think hard first. At over 101 pounds it's a genuine struggle to move when it's off, so it's happiest with garage storage and a rack rated for heavy e-bikes.
The value-first buyer
If $4,099 is a stretch and you mostly ride mellow trails and pavement, you're paying for climbing power you may not use. A lighter, cheaper fat-tire bike will handle casual off-road duty for less and be easier to live with day to day.
Frequently asked
Does the Cyrusher Trident have a throttle?
Yes. It has a , so you can ride without pedaling. In its Class 2 setting the throttle powers you up to about 20 mph.
Can you ride the Cyrusher Trident without pedaling?
You can. The throttle lets you get moving and cruise without turning the pedals, which is handy for starting on a steep hill or resting your legs. Just know that riding on the throttle uses more battery than does.
Can you change the class on the Cyrusher Trident?
Yes. It's switchable between in the settings. Class 2 keeps the throttle active with assist up to 20 mph, which is what usually keeps you legal on shared paths; Class 3 raises pedal-assist to 28 mph for road and bike-lane use.
How far does the Cyrusher Trident go on a charge?
Cyrusher claims up to 75-plus miles from its 1,040Wh battery. That's a best-case number, so expect less on hard climbs, with a heavy load, or when you use the throttle a lot.
How fast does the Cyrusher Trident go?
Assist tops out at 28 mph in the Class 3 setting. In the Class 2 setting, the throttle and pedal-assist both cap out around 20 mph.
What kind of motor does the Cyrusher Trident have?
A 1,000W Bafang M620 mid-drive making 160 Nm of torque. That's a strong, climbing-focused setup for steep, technical terrain.
How much does the Cyrusher Trident weigh?
It weighs 101.3 pounds with the battery installed. That's heavy even for a fat-tire e-bike, so plan on a sturdy rack and, ideally, a second pair of hands for lifting.
Similar bikes
Cyrusher Hurricane
The Cyrusher Hurricane pairs a torquey Bafang mid-drive with a huge battery and grippy fat tires, so it climbs and hauls where lighter fat bikes stall, as long as the premium price fits your budget.
Read the review Genius 65 / 100Aventon Aventure M
A 100 Nm mid-drive and a big 733Wh battery make the Aventure M a fat-tire bike that truly climbs, though you'll pay a premium for it.
Read the reviewHow we score: the Genius Score blends a bike's capability against same-price peers with its value for the money, weighted for what this off-road buyer prioritises. Specs are pulled from the manufacturer's live page and normalised (nominal vs peak watts, true weight with battery). Ratings are our estimate from specs, not a lab test.