To get acquainted with the Aventon Sinch, checkout this video:
Riding the Aventon Sinch:
Overall there are some characteristics of the Aventon Sinch that really stand out when riding this electric fat bike. To summarize they are:
Agile, stable, and comfortable ride feel
Powerful 500 watt (750 watt peak) motor with pedal assist & throttle
Impressive range with high capacity Samsung cells battery
The Look & Feel of the Aventon Sinch
The Aventon Sinch has a very distinct look with its compact yet fat 4″ wide off-road tires!
Its frame design with large aluminum tubing is very striking and it also hides and protects the high capacity 48V 14ah battery very well in the top tube of the frame.
From a distance it is very hard to tell that it is an electric bike.
The hidden battery is a highlight for the looks of the bike in addition to being a great location for weight distribution and handling of the bike.
When riding the Sinch there is no noticeable flex from the large aluminum tubing and the large central frame hinge feels very secure.
Aventon did a nice job of shaping the hydroformed tubing to integrate the battery, provide a very solid platform for the bike, and a lot of clearance for the 4″ wide tire.
In addition, the large and uniquely shaped tubing adds a lot of unique styling to the Sinch!
The compact yet wide tires and relatively low top tube make the Aventon Sinch a very approachable eBike for riders to easily get on and ride.
The relatively smaller wheels give the Sinch an agile ride feel that is responsive and helpful for maneuvering in crowded areas.
That agile handling is balanced well with the stability of the 4″ wide tires that have a large tread patch on the ground along with a bit of built in suspension from the high air volume tires.
With relatively narrow handlebars and smaller wheels the steering does feel quick, even with the fat tires. This is a common trait among folding bikes.
The riding position is generally upright and comfortable which is also good for seeing everything around you.
The handlebar can be adjusted 5″ vertically with a quick release so you can set it to you preferred riding position.
Similarly the seat has a lot of adjustability to fit a range of riders between 5’0″ to 6’3″.
Smoothing out the ride is handled by the high air volume tires in addition to the RST Guide suspension fork with 1.8″ / 45mm of travel.
The RST fork has a very active feel that does a good job of absorbing some of the large bumps and cracks in the road.
There is a preload dial to adjust the spring rate to your weight and riding style.
Additionally there is a lockout dial for more efficient riding on smooth roads.
In addition to being a fun and easy to ride compact electric bike, the Sinch also folds down to a compact size for storage or transport.
Once you get used to the folding process is takes about 30 seconds to fold or unfold.
The folding mechanisms all use a quick release system so no tools are required. The folding spots are; the handlebar mast, frame hinge, seatpost, and foldable pedals.
Once folded it has a compact size for storing at home and/or work in addition to transport in a car or mass transit.
At 65.6 pounds the Sinch is on the heavier side which makes it a pretty good workout to pick up. Removing the battery brings the weight of the bike down to 58.0 pounds which makes it a little easier to pick up.
A big highlight of the Sinch are the 4″ wide Kenda Krusade tires because they provide stability, built in suspension, a lot of traction, unique styling, and off road capability.
Most fat tire bikes are in the 26″ wheel size for riding in all types of terrain: pavement, hard pack trails, sand, mud, and snow.
And for the most part those capabilities are also found in these smaller 20″ wheels.
The stable ride feel is from the large tread patch on the ground that also provides a lot of traction when the tires are run in the lower air pressure range.
Fat bike tires can use lower air pressure when compared to traditional mountain bike tires because of the large volume of air that they contain.
And with the lower air pressure, fat tires can mold over and contour to rough terrain.
Here are some tire pressure recommendations for different terrain:
Sand and Snow: + or – 8 psi
Hard pack to muddy roads/trails: 12-15 psi
Urban riding: 20-30 psi
The lower air pressures also give the tires a suspension effect to smooth out rough roads.
Fat tires generally have a slower handling characteristic that actually works well for the compact 20″ wheel because they generally have quick agile handling.
The combination of the 4″ wide tires and 20″ compact wheels is a nice balance of stability while still being relative agile for maneuvering in crowded areas.
Regular tire sized folding bikes require more attention to avoiding bumps and potholes because smaller wheels are not as forgiving as larger wheel bikes.
Another benefit of these fat tires is that the outer diameter is about 24″ which helps them roll through bumps, crack, and potholes in the road easier.
Additionally, high air volume tires are less likely to pinch flat the tube between the tire and rim because there is so much air volume for the tires to absorb impacts from rocks, roots, etc.
Now let’s take a look at the drive system on the Aventon Sinch.
A 500 watt (750 watt peak) geared rear hub motor provides assist up to 20 mph with pedal assist and/or throttle.
The motor provides a nice range of riding performance from easy going up to quick and powerful with its 5 levels of pedal assist and throttle.
The pedal assist is based on a cadence sensor that adds the assist in about half a revolution of the cranks.
Pedal assist levels 1 and 2 provide a fairly mellow ride for easy cruising around the neighborhood or when riding in crowded areas.
Pedal assist levels 3 through 5 definitely have more of a punch which gets up to speed quickly and climbs hills well. Of course the sporty ride feel also drains the battery quicker.
There is also the thumb throttle that can be used as a boost to the pedal assist levels or it can be used without pedaling if you like.
As a safety feature the throttle is usable after the bike is moving at 2 mph. After coming to a stop it does take the display a few seconds to go to 0 mph, so you can use the throttle after a short stop.
There is also a walk mode that will provide up to ~3mph of assist for help when walking with the bike up hill or up stairs. It is activated by holding the down arrow on the control pad on the handlebar.
Like most geared rear hub motors this motor does create some noise. It is in the medium sound range when compared to other geared hub motors and the noise dissipates a little at the higher speeds due to the wind and tire noise.
Powering the motor is the high capacity 48V 14Ah (672Wh) lithium battery pack that uses Samsung cells.
It’s location in the front part of the frame is ideal of looks of the bike, protection of the battery, and weight distribution.
It provided impressive range for this high powered eFat bike which you can see in the range test results below.
The battery can be fully charged from empty in about 4 hours with the included 3amp charger, which is faster than a typical 2 amp charger.
Okay, now let’s take a look at the display on the Aventon Sinch.
The LCD display provides information on:
Odometer & trip distance
Pedal assist level. There are 5 levels of pedal assist.
The display has a backlight for easy visibility day and night.
Slowing down the Aventon Sinch is handled by Tektro mechanical disc brakes with 180mm rotors front and rear.
They have a good amount of power and modulation to bring the Sinch to a quick stop if need be.
Each brake lever has a sensor that will stop the motor assist when either brake is engaged.
One feature that would be nice to have is brake lever reach adjustment for smaller hands.
Okay, let’s see how the Aventon Sinch did out on the open road!
Aventon Sinch Range Test Results:
Here is the real world information on how the Aventon Sinch electric bike performed on a riding circuit that includes hills, flats, traffic, wind (when available) etc.
While testing these bikes I like to put them through the toughest conditions to see where their bottom line is in regards to range and speed. I tested the Aventon Sinch in the highest pedal assist level (Level 5) with average pedaling on paved roads.
Range: As you can see from the GPS info that I recorded, the Aventon Sinch traveled 29.7 miles and did a total elevation gain of around 2,400 ft. Considering that I weigh 190 lbs and I pedaled with average pedaling this is good range for an eFat bike with a 48 Volt 14 ah battery pack (672 Watt Hours) with a 500 watt (750 watt peak) motor assisting up to 20 mph.
Watt hours are the total energy in a battery pack and it is based on the volts x amp hours of a pack. This is a way to compare the size of the “gas tank” of electric bikes.
Please keep in mind that if you pedal more, weigh less than me, ride slower and/or you use the bike in terrain that is not as hilly you will get more range. These results are from tough testing.
Speed: The Aventon Sinch will assist up to 20 mph with pedal assist only and/or throttle making this a Class 2 electric bike.
Weight: The Aventon Sinch tips the scales at 65.6 lbs which is on the heavier side for an electric bike. Removing the 7.6 battery brings it down to around 58.0 pounds.
The weight distribution of the Aventon Sinch is well balanced with the battery in the front of the frame and the motor in the rear wheel.
Fun and Easy to Ride: The Sinch is a lot of fun to ride with its agile handling yet stable ride feel from the 4″ wide off-road tires. It is also easy to get on and ride with its relatively low frame design and compact wheels. In addition its a comfortable bike with the built in tire suspension, comfortable upright position, and highly adjustable handlebar and seat.
Performance Ride: The 500 watt geared rear hub motor with 750 watts of peak power gives the Sinch some kick for accelerating and climbing hills well. With 5 levels of pedal assist and/or throttle you can dial in your preferred riding style easily. The Sinch handles well with the balanced design from the frame integrated battery which also provides a clean look and protection for the battery.
Impressive Range: The high capacity 48V 14ah battery provided 29.7 miles of range in the tough range test (highest assist level) with elevation gain of around 2,400 ft of climbing. More moderate riding conditions will provide even more range.
Heavier: At 65.6 pounds this is on the heavier side for most electric bikes. Removing the battery brings it down to 58.0 pounds which makes it a little easier to pick up.
Motor Noise: The geared rear hub motor does make noise that is typical of other geared hub motors. It dissipates a little as you get to the higher speeds due to wind and tire noise.
Brake Lever Reach: One feature that would be nice to have is brake lever reach adjustment for smaller hands.
Overall the Aventon Sinch is a fun and easy to ride bike that is great for around town riding and exploring the backroads.
Its sporty ride gives is a fun and playful feel that maneuvers well in a lot of different riding conditions with the 4″ wide off-road tires.
The powerful 500 watt motor with 750 watts of peak power offers a lot of performance and the 48V 14ah battery goes the distance while being well positioned within the frame.
And adding to all of that are the folding capabilities that make the Sinch a versatile eBike for storage at home/work and transport in a car or mass transit.
Please keep in mind that this is a relatively short term test. This testing can’t really give you the long term review of durability and reliability. My thoughts on the quality of this bike are from previous experiences with similar bikes. If you own this bike and have some input on the long term durability, please share your comments with the Electric Bike Report community below.
Do you have any questions about the Aventon Sinch? Do you own a Aventon Sinch? Please share your thoughts in the comment section below.
Review Note: Each company pays a fee for a review on Electric Bike Report because of the considerable amount of time that it takes to provide an in-depth review of each eBike. A lot of time is spent on the full range test with distance & elevation profile, the wide variety of detailed pictures, in-depth video, and the write up with the specifications, ride characteristics, pros, cons, and overall thoughts. The reviews on Electric Bike Report are focused on providing you with a detailed “virtual” look at each eBike to help you determine if it is the eBike for you.