The Sinch 2.5 is a folding fat tire ebike that offers both convenience and performance for riders exploring diverse terrains. It delivers a stylish, capable, and thoughtfully crafted design. In our Aventon Sinch 2.5 Review, we explore the upgraded features that make the Sinch 2.5 a standout choice for those seeking compact utility and robust all-terrain performance. Plus, with Aventon’s extensive Dealership Network (1800+ and counting), you can easily find support and service for your ebike.
Aventon Sinch 2.5 Folding Ebike Youtube Review
Our YouTube review below highlights what makes the Sinch 2.5 a standout in its class and how it surpasses the Sinch 2.
What’s New on the Sinch 2.5?
While it shares similar core features with the Sinch 2, the Sinch 2.5 feature the following upgrades:
Hydraulic Disc Brakes: Now equipped with Tektro hydraulic disc brakes with 180mm rotors. This is a big improvement over the finicky mechanical brakes on the Sinch 2.
Drivetrain: Featuring a Shimano Altus drivetrain, providing smoother gearing than the Aventon 8-speed system on the previous model.
Left-Hand Throttle: The throttle has been moved, consolidating all the controls on the left side of the handlebars.
BC147 Display: Aventon has been favoring this smaller left-mounted color LCD display on their recent models. The PAS controls and display are one unit, and it includes a USB-C port to charge your phone.
Suspension Seatpost: Pogo-style suspension seat post included for added comfort, paired with an Aventon Branded large saddle.
Even with these upgrades, the Sinch 2.5 maintains the same launch price of $1,799. The Sinch 2 is currently on sale for $1,399, making the older model a budget-friendly alternative. For an in-depth look at the Sinch 2, check out our full review here.
Technical Specifications: Aventon Sinch 2.5 Review
Frame and Sizing: Aventon Sinch 2.5 Review
The Aventon Sinch 2.5 retains the same folding aluminum frame as its predecessor, designed to combine portability and durability.
See the sizing table below for details on weight and rider fitment.
Performance Tests: Aventon Sinch 2.5
We conducted a series of performance tests that highlight the Sinch 2.5’s acceleration, speed, and hill climbing capabilities. Here’s what we found:
- Throttle Performance: Reached 20 mph using throttle alone, making it a solid Class 2 ebike.
- Throttle-Only Hill Climbing: Maintained an impressive minimum speed of 14 mph on a challenging incline.
- Pedal Assist Cruising: With pedal assist set to Turbo, it cruised comfortably at speeds of 20-22 mph. For riders willing to put in more effort, the Sinch 2.5 can reach a top speed of 25 mph.
- Pedal Assisted Hill Climb: Torque sensors were responsive and requested ample support from the motor.
Pros and Cons: Aventon Sinch 2.5 Review
Pros:
- Well-tuned torque sensor: Provides powerful and responsive pedal assistance.
- Upgraded Drivetrain: Features the Shimano Altus 8-speed drivetrain, which is much better than its predecessor’s Aventon 8-speed system.
- Top-load battery: Easy removal for indoor charging and storage.
- Premium look: Modern and sleek design with clean welds.
- 4″ fat tires: Full-fat tires offer great stability and traction.
- App connectivity: Adds features like ride tracking and customization through the Aventon app.
- Integrated lights: Safety lights and turn signals run off the main battery.
- Arrives virtually fully assembled: Saves time and effort during setup.
- Accessories included: Comes with practical additions like fenders and a rear rack, ready to ride.
Cons:
- Won’t go 28 mph: Top speed is 25mph, easy cruising at 20-22mph.
- Basic Suspension Seatpost: While it adds comfort, it doesn’t compare to higher-end options.
- Small display: The smaller display is harder to read compared to larger screens but frees up handlebar space for accessories. Riders might want to consider using the Aventon app.
- Not as compact as other folding ebikes: When folded, it takes up more space than some competitors.
- Riders over 6′ tall might not get full leg extension: Taller riders may find the frame geometry limiting.
- Lack of bottle cage bosses: No dedicated mount for water bottles, but we have options with straps available here.
Who is the Aventon Sinch 2.5 For?
If you’re looking for a folding fat tire ebike with premium features, the Aventon Sinch 2.5 is an excellent choice. Its compact folding design and 4″ fat tires make it versatile for city commutes and trails alike. With upgrades like hydraulic brakes and the Shimano drivetrain, the Sinch 2.5 offers an impressive value at $1,799. If you’re on a tighter budget, the Sinch 2 remains a great alternative at $1,399.
Aventon Sinch 2..5 vs Rad Power Bikes RadExpand 5 Plus
Arguably the closest competitor to the Aventon Sinch 2.5 is the Rad Power Bikes RadExpand 5 Plus—priced slightly higher at $1,899 versus the Aventon’s $1,799. Both of these folding e-bikes stand out in the sub-$2,000 category by offering torque sensors rather than the more common cadence sensors found on budget models like the Lectric XP 3.0, Ride1Up Portola, and Velotric Fold 1.
With torque-based systems, riders enjoy more immediate and intuitive pedal assistance, a feature still relatively rare at these price points. Where the Sinch 2.5 pulls ahead is its higher top assisted speed of 25 mph, compared to the RadExpand 5 Plus’s 20 mph limit.
Beyond performance, the Aventon showcases its polish with a fully integrated battery and controller, lending it a sleek, unified look, plus name-brand components that underscore its quality. By contrast, the Rad’s design and externally mounted hardware feel a bit more utilitarian. Those seeking an even narrower tire profile might consider the Blix Vika X, but among folding e-bikes that deliver a premium ride feel, the Sinch 2.5 strongly positions itself as a refined and well-valued choice. Plus, many will appreciate the Aventon dealer network.
Final Thoughts
Aventon’s Sinch 2.5 is a well-rounded folding ebike that combines convenience and performance. The enhancements are worth considering if you value premium features.
If the Sinch 2.5 your next folding ebike, use our affiliate link to support Ebike Escape at no extra cost to you. For those exploring other options, you can find more in-depth reviews of Aventon’s lineup here. Or, if you’re looking for other folding electric bike recommendations check out our list of the best folding ebikes we’ve reviewed.
