ALL Electric In this guide (10 sections)
Should you buy one?
I tested three e-bikes side by side: the Aventon Sinch Step-Through, the Cyrusher XF900 and the Wallke F1. I called it the good, the bad and the ugly, but none of them is a bad bike. They’re built for different riders.
- Aventon Sinch Step-Through (the good): buy it if you want a full-size e-bike that folds into a small trunk. It was the only one of the three that fit in the trunk of my Model 3. I think it’s worth the $1,800.
- Cyrusher XF900 (the ugly, to my eye): buy it if 90% of your riding is on dirt or gravel and you want dual suspension. Skip it if you mostly ride on the road. I felt the 750W motor was lackluster for how heavy it is.
- Wallke F1: buy it if you want the cheapest way into a 500W bike with thinner tires and you have a bike rack. The parts feel cheap, but the motor feels strong on a smaller frame.
Quick specs
| Spec | Aventon Sinch ST | Cyrusher XF900 | Wallke F1 |
|---|---|---|---|
| Price in my video | $1,800 (fenders and rack extra) | $2,400 | $1,399 list on Amazon, about $1,000 with $380 off |
| Motor | 500W rear hub | 750W | 500W rear hub |
| Tires | 4 in fat, street tread | 4 in fat | 2 in |
| Suspension | Not covered in my video | Air front fork, rear suspension | Not covered in my video |
| Folds | Yes, fits a Model 3 trunk | No | No |
| Headlight | No | Yes, LED, plus horn | Yes, adjustable |
| Tail light | No | Yes, on rear fender | Not covered in my video |
| Brakes | Not covered in my video | Zoom | Zoom (cheaper) |
| Gears | Several (count not given) | Yes (count not given) | 3 front, 7 or 8 rear |
| Throttle | Left side, works from zero in PAS 1+ | Twist | Not covered in my video |
Sources: my three-bike comparison video. Prices are the ones I quoted in the video, not current prices.
Aventon Sinch Step-Through
What I liked
At $1,800, plus extra for the fenders and rear rack, it’s a steep price, but you get a lot. The big one: it folds, and it fits in the trunk of my Model 3. Neither of the other two bikes could. It’s rare to get a full-size e-bike that’s comfortable for me and fits in my car.
- Full color display, the updated one Aventon is putting on all its bikes
- 500W rear hub motor with a ton of power
- Several gears and 4 inch tires
- The styling. The dark green with gum-sole 4 inch tires looks really sharp
- The tires aren’t meaty. They’re street tires, but they performed well on solid trails and on the dirt trails I took it on
- Integrated battery that’s removable with a key, like the original Sinch I tested
- Fully adjustable Aventon-branded seat. I’m about 6’1” and still had plenty of room to go up
- Throttle on the left that works from zero as long as you’re in at least pedal assist level 1
- Adjustable handlebars
What I didn’t
There’s no headlight and no tail light. Aventon is making lights standard now; my Soltera has a headlight and a tail light integrated in the frame. I’d expect lights to come to the Sinch soon.
Verdict
If you have a small sedan and like taking an e-bike with you, this is the one, because the other two simply won’t fit. I believe you’re getting a solid package from a company that’s proving itself in the e-bike world.
Cyrusher XF900
Styling
I’ll admit it: this is the one I called ugly. When I pulled it out of the box, my wife said, “That’s disgusting.” I kind of like the blue, but it’s not for me. The blue rims are a bit much. It would have been okay without them. I much prefer the Sinch’s styling.
What I liked
At $2,400, it costs more than the Sinch, and you get dual suspension: rear suspension plus a massive dirt-bike-style front fork that you can inflate and deflate up top, like a traditional dirt bike fork. That’s really impressive.
- Plastic front and rear fenders and a rear rack
- Came with a tool kit, charger and assembly instructions
- Range is pretty impressive given its size and the 750W motor pulling more from the battery
- Zoom brakes
- Headlight and horn on the left side, and an LED headlight and tail light on the rear fender. I love those built-in rider safety features
- Gears and 4 inch tires for a smoother ride
What I didn’t
- The motor. The fork was impressive until I rode it. It has a 750W motor, and this thing is heavy, especially once you add all the parts and the big battery. Sitting behind it with the twist throttle, you feel like you’re on a dirt bike and expect dirt bike performance, but it really doesn’t deliver. I wish they’d put a more powerful motor in. It might be fine for some of you, but with the heavy frame it needs more for me.
- The kickstand. I noticed this as soon as it came out of the box. It flexes and it’s really cheap. This is a heavy e-bike and it needs a heavy-duty kickstand.
Verdict
If 90% of your riding is on dirt or gravel trails, this is the one over the Sinch, and you’ll be comfortable with the dual suspension. If you’re riding on the road, it’s not the one for you.
Wallke F1
Price
On Amazon it was listed at $1,399, but it was $380 off, which put it at almost $1,000. That’s about $800 less than the Sinch for the same 500W motor rating.
What I liked
- 500W rear motor that feels like it has way more power on this smaller bike. On the huge XF900, with the extra shock and huge tires, 750W isn’t enough. On a much smaller bike, 500W has plenty of power
- Still fits me at about 6’1”, though it’s a little smaller
- 3 gears in front and 7 or 8 in the rear, plenty to shift through for a mountain bike
- Adjustable front headlight
- The kickstand is more heavy-duty than the XF900’s, which is hilarious to me
What I didn’t
It’s definitely using cheaper parts: cheaper tires and cheaper brakes. They’re Zoom brakes too, but not the fancier ones on the XF900. The handlebars, screen and seat all felt cheap when I tested it. I’m trying to think of another word, but cheap is what comes to mind.
Verdict
It’s a decent e-bike for the money. If you have a bike rack and prefer slimmer 2 inch tires over 4 inch tires, save the extra money and go with the Wallke.
What the specs mean on the road
500W vs 750W. Watts alone don’t tell you how a bike feels. The 500W Wallke felt stronger than the 750W XF900 because it’s so much smaller and lighter. Weight, tires and suspension all take some of that power.
4 inch vs 2 inch tires. The fat tires on the Sinch and XF900 smooth out the ride and handle dirt. The Wallke’s 2 inch tires suit riders who want a slimmer, lighter bike.
Dual suspension. The XF900’s air fork and rear suspension make it the comfortable choice on dirt and gravel, and it’s overkill for the road.
Folding. If you don’t have a bike rack, folding is the feature that decides it. Only the Sinch fit in my trunk.
Lights. The XF900 and Wallke have headlights. The Sinch I tested had none, so plan to add lights for night rides.
Who should buy which
| If you… | Get the |
|---|---|
| Need to fit it in a small car trunk | Aventon Sinch ST |
| Ride mostly dirt and gravel | Cyrusher XF900 |
| Want the lowest price and have a bike rack | Wallke F1 |
| Ride mostly on the road | Sinch or Wallke, not the XF900 |
Pros and cons at a glance
Aventon Sinch ST. Pros: folds into a Model 3 trunk, sharp styling, full color display, removable battery, adjustable seat and handlebars. Cons: no lights, and fenders and rack cost extra.
Cyrusher XF900. Pros: dual suspension with an air fork, lights and horn, tool kit included, impressive range for its size. Cons: the 750W motor feels weak for the weight, flimsy kickstand, very heavy, love-it-or-hate-it styling.
Wallke F1. Pros: lowest price, the 500W motor feels strong on a small frame, headlight, solid kickstand. Cons: cheap-feeling handlebars, brakes, screen and seat.
Price
These are the prices I quoted in the video: Sinch Step-Through $1,800 (fenders and rack extra), XF900 $2,400 and Wallke F1 about $1,000 on sale ($1,399 list). I haven’t confirmed current prices for any of them as of Oct 23, 2026, so check the seller before you buy.
Related reviews and guides
Check prices for the bikes in this guide
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