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X-Treme™ Summit 48V LiPo4 Mid Motor Electric Mountain Bicycle

Price: $1,999.00  (CLICK add to cart to see our DISCOUNTED Price) 
Model: SUMMIT48V
Manufacturer: X-TREME SPORTS
Weight: 60.00
Availability: In Stock

Introducing the all new X-Treme Summit 48 Mid Motor Electric Mountain Bicycle with Extra Large 10 AH 48 Volt LiPo4 lightweight battery pack.  While most all other electric bicycles have the motor in the rear wheel / hub, the Summit 48 is one of the first to introduce the motor in the center of the lower frame and as a combined part of the crank system Hence: (Mid Motor).  
The benefits of a Mid Motor system included but are not limited to Zero Resistance when pedaling with the power off, low center of gravity for better handling, greater performance & lighter weight. Most of all, when the power is off and you are powering the bike by pedaling, because there is zero resistance and no heavy rear hub motor to pedal against, your overall riding experience will be very similar if not nearly identical to that of a non-electric powered bicycle (when the power is turned off).

Smart Power Assist System (SPAS): The electronics of this X-Treme Electric Bicycle are controlled via rider input on the LCD screen attached to the handlebars. Smart PAS with 5 speeds will enable the bike to operate nearly twice as efficient as a non-smart assist e-bike, because you select the power consumption (speed control 1-5 setting) on the LCD during your ride. This feature can allow your Summit 48 to possibly reach or exceed 40 miles per charge (during optimal terrain conditions) LCD also indicates Speed, Distance & Battery Life. 

The upgraded SPAS also contains a torque sensor that no other X-Treme Bicycle features which will sense the torque needed to climb a hill.  When climbing, the Summit 48 will increase torque output which will result in a pleasant hill climbing experience, even if the hill is steep. 

The SA Suntour® XCM Front Forks allow for a smooth ride.  The left side of the fork has a coil spring with a preload adjuster.  The right side has a hydraulic lock-out cartridge.

The Summit 48 also has black Bar ends.  For those who are not familiar with this option, these are added because when riding with a straight handle bar you only have one position for placing your hands while riding.  After riding for only a short time you may experience hand numbness, soreness and discomfort.  The Bar Ends offer relief as they offer you an additional hand position to relieve the pressure on your hands.  They also allow you to get off the saddle and position yourself over the handle bars and stand up while climbing hills or if you would just like to stand in general while riding.

The front & rear wheels have a quick release hub to allow for easy removal.  Top speed for this bike is up to 25 MPH (faster speeds if you pedal), faster than any model we sell, and will go the distance of up to 32 miles using power only and up to 40 miles per charge using the SPAS.  Another new feature is the Shimano Tourney 27 Speed Derailleur and Shifter system (3 Speed Shimano derailleur on the front wheel and 9 Speed Shimano derailleur on the rear wheel).

The Summit 48 has an all new high efficiency JAK-3SF (Front Disk Brake) and JAK-3SR (Rear Disk Brake) braking systems with 160mm vented brake rotors.

Another all new feature is the convenient USB port located on your battery pack to allow you to charge your cell phone, iPod or any other smart gadgets while riding your Summit 48.

Orders placed on Thursday after 12:00 pm pacific time will be processed the following Monday




350 Watt


10 Amp Circuit


48 Volts


Up to 40 miles per charge* - can still pedal if charge is lost


25 MPH*


48 Volt 2AH Output UL Certified Charger (Charging Time +/- 3 Hours)

Tire Size

26 x 1.95 Inch on Aluminum Wheels


Center Frame Mounted Zero Resistance True Mid Motor


48 Volt 15 Amp Sealed Smart Controller

Rear Wheel Gears & Speeds

9 Speed Shimano® Altus Mega Drive Train Gears & Shifter

Front Wheel Gears & Speeds

3 Speed Shimano® Altus Mega Drive Train Gears & Shifter

Throttle Type

Thumb Throttle or Pedal & Power Assisted

LCD Display

Smart Power Assisted System (SPAS)

Cargo Rack

Aluminum Rear Carry Rack

Frame Type/Size

6061-T6 Temper Aluminum Alloy - Very Lightweight


SA Suntour® Hydraulic Front Forks


Front Suspension included

Braking System

High Endurance JAK-3 Front & Rear Disk Brakes

Drive System

Chain Driven by Mid Motor or Pedal Power

Head Light

Yes, included as free accessory add on - Battery Operated Snap-On LED (Not covered under warranty)

Front Sprocket

Pro Wheel 3 Speed Aluminum Alloy Sprocket

Bicycle Measurements

Coming Soon

Carton Size (L x W x H)

54.5 x 8.5 x 28

Bicycle In Box Weight

60 LBS

Bicycle Weight

Coming Soon

Suggested Max Weight

350 lbs.


6 Month Warranty & 1 Year Battery Warranty


X-Treme™ Summit 48V LiPo4 Mid Motor Electric Mountain Bicycle

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Sunday 17 February, 2019

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