Aventon’s Stout ‘Sinch’ Ebike Is Ready To Travel

Aventon’s Stout ‘Sinch’ Ebike Is Ready To Travel

As time goes on, it seems the ebike market is shaking out into more defined categories, and one popular niche is the “fat tire” bike, while another popular segment includes the ability to fold up an ebike for simplified transport and storage. So… why not both?

Aventon’s new $1,799 Sinch does just that, and prior to today’s product reveal, I’ve been rolling around on the streets of Portland on shiny red new Sinch for a couple of weeks.

I reviewed Aventon’s “regular” fat tire step-through model, the Class III Aventure (correct: no “D”) last year and found it to be both fast, fun and sturdy, especially for a step-through model, but when Aventon told me the Sinch was going to be a foldable fat-tire bike, I admit I had a tough time picturing how that burly bike could ever fold up into anything remotely portable.

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It’s probably a good thing that I ride bikes rather than design them, as Aventon made it happen by going to the smaller “fat” tire size of 20 by 4-inch tires instead of the regular 26-inch monsters. The tires are also street-oriented, with a good tread pattern for pavement (especially wet pavement) instead of knobbies as on the Aventure. And I even took it down some woodland hiking trails with no traction problems.

Power comes from a 500-watt brushless rear hub motor powered by an in-frame removable 48-volt 4Amp-hour(672Watt-hour) battery that can provide 40 miles of “average” range according to Aventon. That number is with the rider pitching in on the pedaling, and there’s a seven-speed Shimano Acera derailleur for gear choice along with a thumb throttle for pedal-free cruising, although that will eat through the battery a bit more quickly. Top speed tops out at a Class II 20mph limit and cable-actuated disc brakes haul the Sinch down from speed. An RST GUIDE-ML-20 suspension fork with 45mm of travel as well as preload and lockout controls smooths out the bumps. A color LCD panel up top includes the usual speed, distance and battery charge data bits along with some smile-worthy stats like how much carbon you’re not emitting and how happy you’re making the trees.

The Sinch arrived at my home in a box much smaller than your typical bike box, hinting at its folded dimensions. I lifted the 68-pound Sinch out and quickly got it ready to ride by simply… unfolding it. No wheels to install, handlebars to attach or pedals to wrench into place. The handlebars, which are adjustable for height, snapped into place and two more adjusters up top let riders fine-tune their position. The frame closes with a stout locking clamp and the seat also has a wide range of adjustment; this bike easily fit my 6-foot 1 frame while some quick changes made it perfect for my 5-foot 2 partner and our 5-foot 10 teenager. Even the pedals fold up and the Sinch went from boxed to ride-ready in well under 10 minutes – possibly a new record.

Bundled up while out in the Oregon winter weather, the Sinch ferried me around the neighborhood, to the store and on longer rides with ease and comfort. While it doesn’t have the larger battery and higher Class III top speed of the Aventure, it’s still plenty fast. The smaller tire size makes it a quick cornerer, and you have to get used to the low-set weight and small wheel action if you regularly ride full-size bikes. But after a mile or two, you get used to the dynamics and the Sinch was stable, comfortable and easy to ride. While step-throughs and especially folding bikes can include a fair bit of frame flex, Aventon has fortunately carried over their braced frame design from the Aventure step-through and while some flex is present, it’s still a very firm system and most riders will never detect it. The Sinch is also available in a unique folding spar-frame design.

Braking power is good from the cable-actuated discs, but I’d like to see them move up to hydraulic systems if possible; I know a folding design can make routing (and not kinking) hydraulic lines a challenge. I was also a bit disappointed to see the Sinch did not include fenders or lights, especially since the excellent LED headlight and integrated tail light on the Aventure were a highlight (sorry). Lights ($71 for both) and fenders ($84) are available for the Sinch through Aventon, of course, as are a rear rack ($50) and other accessories.

Despite those minor quibbles, I had a lot of fun on the Sinch and it was great to be able to pop it into the back of my small electric car without needing a bike rack or my diesel-powered truck to haul it around – my happy tree score would likely take a big hit. The Sinch is available now from Aventon.