The Cyrusher XF900 is a heavy, full suspension fat tire bike styled like a dirt bike. I rode it for a three bike comparison video alongside the Aventon Sinch step-through and the Wallke F1, so this isn’t a long solo test. My short version: it looks like a dirt bike, but it doesn’t pull like one.
Cyrusher no longer sells the XF900 I rode. It sells a newer XF900 Pro at $1,199, down from $1,399, in grey, blue and green, all in stock on cyrusher.com as of Oct 27, 2026. The Pro has different specs, which I cover below, and I haven’t ridden it. My video description linked only to Cyrusher’s home page, so there’s no affiliate link here.
Everything I say about the ride comes from that video, with time stamps. Specs I didn’t measure come from Cyrusher’s listings for the original XF900.
A dirt bike look
In the video I joked about the good, the bad and the ugly, and you can guess which one I called ugly. When I pulled the XF900 out of the box, my wife literally said, “that’s disgusting.” I said I kind of like the blue, and it’s okay, but it’s not necessarily for me (3:43 to 4:10). The blue rims were a bit much, and I would have been fine without them. I much preferred the styling of the Sinch (6:42 to 7:00).
It cost $2,400 when I filmed it, more than the $1,800 Sinch (4:18 to 4:29).
The suspension is the real story
This is where Cyrusher went above and beyond (6:42 to 6:48). You get rear suspension plus a massive, dirt bike style front fork that you can inflate and deflate, like a traditional dirt bike fork. I found that really impressive (4:29 to 4:46). The 4 inch tires make it a little smoother to ride, and you have gears to shift through (6:32 to 6:40).
So if about 90% of your riding is dirt and gravel trails, I said this is the one for you over the Sinch, and that you’d be really comfortable on it, especially with the dual suspension (7:23 to 7:40). If you’re riding mostly on the road, it’s not the one for you. It’s built for people riding dirt or gravel (7:40 to 7:52).
The motor felt lackluster
I said the fork was really impressive “until I rode it.” The XF900 has a 750W motor, and I really think Cyrusher should have put in more, because this thing is heavy (4:46 to 4:57). It just seemed lackluster (5:30 to 5:39). Sitting behind those bars with a twist throttle, you feel like you’re on a dirt bike and you expect dirt bike performance, but it doesn’t deliver. With the solid, heavy frame, it needed more power for me, though it might be fine for some of you (5:40 to 6:11).
The comparison made the point clearer. The Wallke F1 has a 500W motor on a much smaller bike, and it felt like it had way more power. On the XF900, 750W isn’t enough for the huge frame, the extra shock and the huge tires (8:46 to 9:20).
Cyrusher lists the original XF900’s Bafang motor at a 1,500W peak and 80 Nm. That doesn’t change how it felt to me. I didn’t measure speed or acceleration.
Heavy, but the range impressed me
Holy cow, this thing is heavy once you add all the parts and the big battery (5:14 to 5:22). Cyrusher lists 74 lb with the battery. I didn’t weigh it.
The range, though, I called pretty impressive considering the bike’s size and how much the motor pulls from the battery (5:20 to 5:28). That’s an impression, not a measured test. Cyrusher lists a 48V 17Ah battery and 50 to 62 miles of rated range.
What comes with it
It has plastic front and rear fenders and a rear rack, and the box held a tool kit, the charger and assembly instructions (4:57 to 5:14). On the left grip you have the headlight and a horn, and I love those built in rider safety features (6:11 to 6:26). The tail light sits on the back of the rear fender (6:26 to 6:30). The brakes are Zoom brand (5:40 to 5:44).
A cheap kickstand on a heavy bike
The one thing that seemed overly cheap was the kickstand. I noticed it as soon as I took it out of the box: it flexes. On a bike this heavy, it needs a heavy duty kickstand, and Cyrusher went a little cheap (7:00 to 7:23). The much lighter Wallke F1 actually had the more heavy duty kickstand (9:36 to 9:48).
The XF900 Pro you can buy now
The bike on sale today is not the bike I rode. Per cyrusher.com (Oct 23, 2026), the XF900 Pro has a smaller 624Wh battery, weighs 71.2 lb, carries up to 350 lb and has hydraulic brakes. The price and stock above were rechecked on Oct 27, 2026. I haven’t ridden the Pro, so none of my comments about the motor apply to it directly.
What I didn’t test
I didn’t run a range test, a top speed test or a braking test, and I didn’t weigh it. The range, weight and motor figures are Cyrusher’s.
How it compares with bikes I’ve filmed
In the video, the Aventon Sinch step-through was the bike I’d take if you need to fold it into a small sedan, and the Wallke F1 had more punch for its size. For a full side by side, read my Sinch vs XF900 vs Wallke F1 comparison.
Among full suspension fat tire bikes I’ve filmed, the Bee Cool Adventurer lists 92 Nm and a 48V 21Ah battery and was $1,099 on Oct 22, 2026. The Mokwheel Obsidian lists 105 Nm and a 48V 19.6Ah battery. Both list more torque and bigger batteries than the original XF900.
FAQ
Is the XF900 good on the road?
Not really. I said it’s for people riding mostly dirt and gravel (7:23 to 7:52).
How powerful is it?
It has a 750W motor (4:46 to 4:53), with a 1,500W peak per Cyrusher. On this heavy frame it felt lackluster to me (5:30 to 5:39).
Is the XF900 Pro the same bike?
No. The Pro has a 624Wh battery and hydraulic brakes, per cyrusher.com (Oct 23, 2026).
Pros and cons
Pros: rear suspension plus an adjustable air fork; range I called impressive for its size; headlight, horn and tail light; fenders, rack and tool kit included.
Cons: 750W felt lackluster for the weight; a flimsy kickstand that flexes; very heavy; styling that isn’t for everyone; the version I rode is no longer sold.
Price
I filmed it at $2,400 (4:18 to 4:23). As of Oct 27, 2026, cyrusher.com sells the newer XF900 Pro for $1,199, down from $1,399, in grey, blue and green.
Check the XF900 Pro at Cyrusher
For more options, see my best fat tire e-bike guide.
“Every valley shall be lifted up, and every mountain and hill be made low; the uneven ground shall become level, and the rough places a plain.” Isaiah 40:4 (ESV)
