Biktrix Challenger 750W 48V Full Suspension Step-Through Electric Bicycle with 5 Levels of Pedal Assist (PAS) and Twist Throttle
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New stock - Latest model. Limited Supply.
Change the way you commute, explore, and exercise with the all-new Biktrix Challenger Full Suspension eBike. With a powerful 750W geared rear hub-motor and a 7-speed drivetrain this eBike can take any challenge you throw at it.
Features of the Biktrix Challenger 750W 48V Full Suspension Step-Through eBike
- Powerful and efficient 750W geared hub motor
- Up to 40 miles range based on battery choice (depending on rider's weight and riding conditions)
- Up to 5 programmable Levels of Pedal Assist (PAS) to help you find just the right amount of help from the motor
- Hydraulic disc brakes, for maximum stopping power in all conditions
- Shimano 7-speed (gears) internal hub transmission
- Front and rear suspension to soak up the bumps and add safety
- Torque sensor
- Rear light - Ride safely
- Short, integrated, comfy seat
- Max load: 330 lbs
- Includes front and rear fenders. Optional front basket and rear rack
Step-through frame
Many people associate the step-through bicycle as being for women, however, they are convenient for any gender. The big advantage of step-through bikes is that they make it easier and much more comfortable to mount the bike. Your feet will be able to touch the ground and there are no worries about losing your balance and possibly falling while trying to get on it.
48V 14.5Ah battery
With the 48V 14.5Ah battery, electric assist range of up to 40 miles is achievable.

Rear suspension
Bumps in the road and tough terrain are soaked up with the dual-shock rear suspension.

7-speed drivetrain
The reliable 7-speed drivetrain helps you always be in the right gear.

Disc brakes
When it's so easy to go fast, you need strong stopping power. These disc brakes will swiftly and reliably bring you to a halt.

Rear light
Attached to the rear rack, it's ideal for crowded cities where you have to ride on the street safely.

Make the bike your own with five exciting colors to choose from and an optional basket and rear rack.
Three ways to ride the Biktrix Challenger 750W 48V Full Suspension Step-Through eBike
- Pedal only (with no help from the motor)
- Pedal Assist (with 5 levels of assist to choose from)
- Throttle only (effortless like a motorcycle)
The Biktrix Challenger 750W 48V Full Suspension Step-Through eBike can be used as a normal bike where the rider provides all the power, or you can use just the throttle and let the bike do all of the work. There is also an in-between option, Pedal Assist, where the rider pedals and the motor provides a great boost at the same time. You can choose the level that is right for your type of riding. The Levels of Pedal Assist allow for increased ride efficiency, resulting in less strain on your knees while riding. It makes riding fun and effortless.
Specifications of the Biktrix Challenger 750W 48V Full Suspension Step-Through eBike
FRAME | 6061 ALUMINUM | |
FORK | SUSPENSION FORK W/50MM TRAVEL, LOCKOUT AND PRELOAD | |
HEADSET | THREADLESS 1-1/2 1-1/8 TAPERED | |
SHIFTER REAR | SHIMANO TOURNEY 7 SPEED | |
REAR DERAILLEUR | SHIMANO ALTUS 7 SPEED | |
CASSETTE | SHIMANO 14-28T | |
CHAIN | KMC Z7 | |
CRANKSET | 170MM ARMS W/ 46T CHAINRING | |
BOTTOM BRACKET | 100MM SQUARE TAPER TORQUE SENSING BOTTOM BRACKET | |
FRONT HUB | 135MM | |
FRONT AXLE/SKEWER | 5MM QR | |
REAR HUB | MOTOR | |
REAR AXLE/SKEWER | BOLT-ON | |
RIMS | 6 SPOKE SOLID RIMS | |
TIRES | 20X4 | |
BRAKES | LOGAN HYDRAULIC DISC BRAKES W/180MM ROTORS | |
BRAKE LEVERS | LOGAN ADJUSTABLE W/ INTEGRATED BRAKE CUTOFFS | |
HANDLEBAR | 31.8MM CLAMP, 720MM WIDE BMX STYLE HANDLEBARS | |
STEM | PROMAX 60MM | |
GRIPS | LEATHER SLIDE ON | |
SEAT POST | N/A | |
SEAT POST CLAMP | N/A | |
SADDLE | SHORT INTEGRATED | |
MOTOR | 750W GEARED HUB MOTOR | |
DISPLAY | KD51C BACKLIT LCD | |
LIGHTS | HEADLIGHT AND TAILLIGHT | |
THROTTLE | TWIST THROTTLE | |
ASSIST LEVELS | 0-5 | |
ASSIST TYPE | CADENCE | |
OTHER | FRONT AND REAR FENDERS, KICKSTAND |

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BIKE GEOMETRY
MM | INCHES | ||
1 | EFFECTIVE TOP TUBE LENGTH | 660 | 26 |
2 | SEAT TUBE LENGTH (CLASSIC BIKE SIZE) | 510 | 20.1 |
3 | REACH | 420 | 16.5 |
4 | STACK | 510 | 20.1 |
5 | CHAINSTAY LENGTH | 500 | 19.7 |
6 | STANDOVER HEIGHT | 420 | 16.5 |
7 | HEAD ANGLE | 70 DEGREES | |
8 | SEAT ANGLE | 58 DEGREES | |
9 | HEAD TUBE LENGTH | 160 | 6.3 |
10 | FORK LENGTH | 420 | 16.5 |
11 | FRONT CENTER | 650 | 25.6 |
12 | BB (BOTTOM BRACKET) DROP | -30 | -1.2 |
13 | FORK OFFSET | 35 | 1.4 |
14 | WHEELBASE | 1120 | 44.1 |
15 | TOTAL LENGTH | 1720 | 67.7 |
16 | MAX SEAT HEIGHT | 830 | 32.7 |
17 | MIN SEAT HEIGHT | 830 | 32.7 |
18 | HANDLEBAR HEIGHT | 1090 | 42.9 |
19 | WEIGHT (WITHOUT BATTERY) | 29 KG | 63.9 LB |
Download Old Juggernaut User Manual HERE (very useful for all Biktrix eBikes)
Videos of the Biktrix Challenger 750W 48V Full Suspension Step-Through eBike