The new Biktrix Stunner electric cruiser bike is in for testing & review!
This is a powerful eCruiser with up to 28mph of pedal assist and a relaxed and upright ride style.
Some of the highlights are a 750 watt mid drive motor, a 48V 11.6ah lithium battery (upgradable to higher capacities), pedal assist + throttle, internally geared rear hub, disc brakes, Kenda tires, and more.
The Stunner starts at $2,099 with free shipping in the US & Canada. There are 3 battery size options for different price points.
In this first part of the review you will get a detailed look at this bike with a BUNCH of pictures and the specifications.
This Prussian Blue color is available in the step-thru frame type.
Above is the step-over frame option that also shows off the Charcoal color. The Charcoal color is available for both frame types.
The Stunner step-thru 6061 aluminum frame has a swooping top tube that drops down to make it easy to get and off the bike. The step-thru height is 18.5″ off of the ground.
The Biktrix Stunner is designed to fit a range of rider sizes from 5′-3″ to 6′-6″ and the bike can support up to 380 pounds.
Taking the edge off of rough roads is the Suntour Nex suspension fork with 70mm of travel.
A highlight of the Stunner is the downtube frame battery that is well located for low and centered weight distribution and it also blends in well the overall looks of the bike.
Biktrix offers 4 different battery sizes with the corresponding prices:
48V 11.6ah for $2,099 USD (Battery size of the bike in this testing)
48V 14ah for $2,399 USD
48V 17ah for $2,499 USD
48V 21.5ah for $2,799 USD
Here is another view of the low 18.5″ step-thru area of the frame. The bends of the top tube add some nice style to the Stunner step-thru.
And a closer look at the low step-thru area with thick aluminum weld connections at the seat tube.
This is a look at the internal cable routing in the downtube that keeps the bikes looks clean and provides some protection of the cables.
Here is a closer look at the lithium battery in the downtube of the frame. There is a USB charging port on the right side of the battery for charging a smartphone, tablet, or other USB chargeable device.
Once unlocked, the battery rotates to the left side of the bike for removal.
Here is the downtube of the frame with the battery removed.
When the battery has been removed the bike weighs 55.0 pounds. The total bike weight with the battery is 62.2 pounds.
This is the battery connection point and locking mechanism at the top of the battery location in the downtube.
And the battery connection point at the bottom of the downtube.
The battery can be charged on or off the bike. Charging time is about 5 to 6 hours for the 48V 11.6ah in this test.
The 48V 11.6ah battery weighs 7.2 pounds.
And here is a look at the charger plugged into the battery on the bike.
The electric assist is powered by a Bafang 750 watt mid drive motor that provides pedal assist up to 28 mph. There is also the throttle option that provides assist up to 20 mph.
The Biktrix Stunner is a Class 3 electric bike which is pedal assist up to 28 mph and/or throttle up to 20 mph.
The Bafang mid drive motor is housed within the frame in the case shown. In this view you can also see the internal cable routing exiting the bottom of the downtube.
And here is the left side of the mid drive motor housing.
The Bafang crankset comes with a chain guard to provide some pant leg protection.
Wellgo aluminum platform pedals have a large grippy platform for a solid ride feel.
The 5 speed gearing is all housed within the Sturmey Archer internally geared rear hub. This is a clean look compared to the traditional derailleur and cogset system found on many bikes.
Tektro Aries mechanical disc brakes with 160mm rotors slow the Biktrix Stunner down.
Here is a look at the rear Tektro Aries mechanical disc brake with 160mm rotor mounted to the Sturmey Archer internally geared rear hub.
The Kenda 26″ x 2.3″ have a good tread pattern for on and off road adventuring. They are built with the “K-Shield” which is puncture resistant and they have reflective sidewall stripes. The tan color adds an additional touch of style to the Stunner.
Now let’s take a look at the cruiser style handlebar area. As you can see these handlebars are very wide and they are swept back for an upright and comfortable ride position.
The wide cruiser style handlebars have a swept back profile that makes for an easy going ride feel.
The handlebar stem angle and height is adjustable which is helpful for dialing your preferred ride position.
On the left side of the handle bar is the ergonomic grip, Sturmey Archer 5 speed grip shifter, bell, and rear brake lever.
A closer look at the Sturmey Archer 5 speed grip shifter.
There is a note on the handlebar to pause pedaling when shifting. Some internally geared hubs don’t shift well under pedaling/motor power.
The color display provides the following information:
The Switchover area provides information on: trip distance, odometer, range, ride time, max speed, average speed.
On the left side of the handlebar is the ergonomic grip, twist grip throttle, front disc brake lever, and control pad.
The grips have a wing shape to provide wrist support and an overall stable feeling.
The twist grip throttle can be used on its own (without pedaling) and it can also be used to provide a boost when using the lower pedal assist levels. Similar to the volume dial on a radio, the throttle provides a wide spectrum of assist from just a little to full assist.
The control pad has (+) and (-) buttons for changing the pedal assist levels and the on/off button in the center also cycles through information on the display.
There is a walk mode that helps when walking with the bike up a steep hill or stairs. It is activated by holding the (-) button down for a few seconds.
The front and rear brake levers have sensors that will stop the assist when either brake lever is pulled.
Each brake lever has a rubber grip surface that provides a solid grip in wet or dry conditions.
The Velo Oversized Cruiser saddle has a wide profile for a comfortable ride and it matches the eCruiser looks well.
The LED headlight is powered by the eBike battery and it also is equipped with a reflector just below the bulb.
The taillight is powered by AAA batteries and it provides solid and flashing modes.
Front and rear plastic fenders come stock on the Stunner.
The aluminum rear rack supports up to 33 pounds of cargo and it has a spring clip for securing some items to the top of the rack.
The kickstand height is adjustable so you can vary the tilt of the bike when it is parked.
Biktrix Stunner Electric Bike Specifications
Frame: 6061 Aluminum step-thru frame with internal cable routing
Fork: Sunour Nex suspension fork with 70mm of travel
Motor: 750W Bafang mid drive motor
Battery: 48V 11.6Ah (557 Wh) lithium battery. Optional upgrade to 48V 14ah (672 Wh) for additional $300 or 48V 17ah (816 Wh) for additional $400. The 48V 11.6Ah battery weighs 7.2 pounds.
Speed: Pedal assist up to 28 mph and/or throttle up to 20 mph which makes this a Class 3 eBike
Display: Color display provides information on the battery level, odometer and trip distance, current speed, average speed, max speed, and pedal assist level (5 levels). Also has a backlight for low light visibility.
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 or not.