Found: Aventon Sinch is a fat tire folding e-bike that fits in a trunk

If you’re looking for a e-bike that goes anywhere, even when you’re not riding it, the Aventon Sinch and new Aventon Sinch Step-Through are worth a look. With huge fat tires and suspension fork on a compact folding frame, these bikes can roll over almost any terrain, then pack down and store in almost any nook.

With an integrated battery and powerful hub motor, the Sinch lineup makes the climbs and rides just as easy as the storage. Here are all the details…

aventon sinch folding e-bike with fat tires and compact frame shown in black from the drive side

The Aventon Sinch starts with a shaped, double-butted 6061 aluminum frame that hides the battery inside the front half of the frame. The battery is removable for indoor charging, or you can leave it in and charge it while installed. It’s a one-size-fits-most frame that accommodates riders from 5’0″ to 6’3″.

Aventon Sinch Step-Through e-bike in Moss Green. Side view.

The Sinch Step-Through keeps the same features, but lowers the top tube to make mounting and dismounting a breeze. Rather than the 5-foot threshold of the base Sinch model, the Sinch Step-Through is suitable for riders starting at 4’11.” It also is ideal for riders who just don’t care to throw a leg over a high top tube every time it’s time to ride.

Aventon Sinch Step-Through leaning on a wall.

A single hinge mechanism locks into place to create a sturdy frame while riding. All cables and wires run internally for a clean appearance and less fuss when opening and closing the frame.

aventon sinch folding e-bike with fat tires and compact frame shown folded up

Folded up, the both bikes under most desks, car trunks, or even your closet. Before folding the frame, you simply unlatch and flip the stem and handlebar down, fold the pedals flat, yielding a very compact 41″ x 23″ footprint that’s just 31″ tall. The Sinch Step Through is a little wider and longer when folded at 48″ by 28.” However, it breaks down to be about an inch shorter than its step-over sibling.

A built-in stand keeps the bikes standing upright when folded. At 68lbs, they’re not light, but you can easily wheel them around while folded, helping you slip them out of the way no matter where you store them.

aventon sinch folding e-bike with fat tires and compact frame shown with closeup on suspension fork and front tire

Up front, a 45mm suspension fork works with the huge 20″ x 4″ fat bike tires to absorb impacts and smooth the ride. Whether you’re hitting those neglected urban streets, rough backroads, or sneaking in some trail time on the commute, you’ll have plenty of traction and support with these tires. And, they’re puncture resistant, so you’re less likely to be slowed down by a flat tire.

aventon sinch folding e-bike with fat tires and compact frame shown from rear with closeup on motor

The Sinch lineup has a 7-speed drivetrain, giving you just enough gear range when combined with the motor’s assist. The 500W 48V brushless rear hub motor moves you along at up to 20mph, and can peak at 750W for power starts. The system has an average 40 mile range thanks to a big 48V, 672Wh battery. A 48V 3Amp fast charger is included to top it off from empty in just 4-5 hours.

controls and display closeup on aventon sinch folding e-bike

Like their other e-bikes, the Sinch works two ways – Pedal Assist, with 5 levels of power to choose from, and Throttle on Demand. The latter lets you press the thumb lever on the left side of the handlebar and scoot along without pedaling. An LCD display shows speed, mode, remaining battery life, and total distance on the odometer. The Sinch Step Through features a nicer LCD color display.

aventon sinch folding e-bike with fat tires and compact frame shown in white

The Aventon Sinch comes in black and white for $1,699. The Sinch Step-Through goes for $1,799, but comes in Moss Green or Bonfire Red. Actual parts spec may vary slightly from what’s shown here due to industry supply chain issues, but the key specs, motor, and frame are all intact. As of this post, Sinch Step-Through bikes are in stock and ready to ship. Step-over models are currently out of stock.

This post is sponsored by Aventon. Learn more about the Sinch eBikes at

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7 months ago

Can we still lower the seat all the way down to the seat post level?

4 months ago
Reply to  Henry

Yes you can!

3 months ago

I’m 6’5″ tall 225lbs with a 36 pant inseam. Will this bike work for me. My daughter is 5,’4″ work for her.. how is bike at climbing hills?