Surface 604 - Shred 2020

Shred 2020, the top e-bike model by Surface 604 with max power and speed.

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Article number: Shred_2020
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2020 Surface 604 Shred

The new 2020 Shred is outfitted with a high-speed Bafang electric mountain bike specific 500W hub motor with a throttle that is extremely powerful (peaks at 750W) and capable of achieving a top speed of 45km/h (28mph).


  • Purpose built for top speed 500W 48V electric motor. Feel the surge of quiet, consistent power distribution at higher speeds - vibration-free.
  • With a torque sensor and throttle on demand, the Colt is great for those that could benefit from an extra boost to make it up the hill.
  • Geared for performance - we paired all that power with an industry-leading 12mosfet 25A controller, so Shred delivers unmatched torque and speed.
  • Watch out for other riders as you zip pass them.

Smooth and Precise Torque Sensing Pedal Assist

Because an electric bike is only as good as it’s power distribution.

  • Shred’s incredibly smooth torque sensor knows how hard you’re pedalling down to the microsecond and matches it with a proportionate power.
  • Gone are the days of simple cadence sensors!
  • Custom drop out design delivers whisper smooth torque sensor sensation at any assist level.
  • In fact, you’ll swear it’s as smooth as a mid-drive motor.
Torque Sensor

Redesigned Cockpit

Now with an extra-large colour LCD display to show, all vital information and give added security.
Set a passcode and the bike won’t start without it, just like your phone.


  • More of Shred’s rubber meets the road, thanks to its stock CST Patrol 27.5" x 2.8" plus size tires.
  • That larger contact patch means more grip, less feedback from small bumps and greater comfort.
  • Other eMTBs are simply not this sure-footed.


MOTOR eMTB specific 500W (peaks at 750W) Bafang geared hub motor
DRIVE MODE Torque Sensing Pedal Assist with a Throttle
THROTTLE Thumb push activated throttle
CONTROLLER 12 Mos 48V 500W 25A with BMS
TOP SPEED Throttle: 32 km/h / 20 mph | Pedal Assist: 45 km/h / 28 mph
BATTERY 48V 10.4Ah Samsung Lithium Ion battery with USB outlet
*48V 14Ah Upgrade available
BATTERY RANGE Up to 56km / 35mi
BATTERY CHARGE TIME 3-6 hours for a full charge from empty
DISPLAY TYPE Surface 604 Color LCD display with USB outlet
FRAME TYPE Tapered headtube, custom reinforced battery mounts, internal cable routing, post mount brakes
FRAME MATERIAL 6061 aluminum alloy
FORK SR Suntour XCT 80mm travel, 9mm quick release axle
STEM UNO ONIT 35 degrees 90 mm S/M 110 mm M/L
HANDLEBAR Promax aluminum, 700mm wide, 6° sweep, 31.8mm clamp diameter
GRIPS Full length 145mm, black colour, with locking rings
SADDLE Selle Royal, ergonomic gel, wide
SEAT POST Alloy 30.4mm
PEDALS Wellgo platform, with die casting body
CHAIN KMC 9-speed
DERAILLEUR SRAM X5 9-speed 1-piece forged CNC with 2 sealed bearings
CASSETTE SRAM 9 Speed, 12-34T
SHIFT LEVERS SRAM X5 trigger shift
BRAKES Tektro Dorado hydraulic disc, post mount, 180mm rotor with motor inhibitors
CRANK SET Samox 38T front sprocket, 170mm crank arms
BOTTOM BRACKET Samox Sealed Bottom Bracket
TIRES 27.5″ x 2.8″ CST Patrol
RIMS Aluminum Alloy Double Wall Rim, 27.5″x13Gx36H
1-piece forged CNC with 2 sealed bearings, Cro-Mo axle and Alloy QR
KICKSTAND Heavy duty aluminum
BUILT-IN FEATURES Chain guard, rear rack, fenders (front and rear), LED lights (front and rear), Bell
OPTIONAL UPGRADE FEATURES SR Suntour NCX Suspension Seat Post, Rear Rack, Front and Rear Fenders, 14ah Battery
WEIGHT CAPACITY 130kg / 285lbs
M/L: 21.5” (546mm)


    S/M M/L
TTH. Top Tube Length (mm) 593.0 620.0
HTA. Head Tube Angle (deg) 70.0 70.0
HTL. Head Tube Length (mm) 145.0 145.0
STA. Seat Tube Angle (deg) 73.0 73.0
STL. Seat Tube Length (mm) 444.5 482.6
CSL. Chainstay Length (mm) 455.0 455.0
WB. Wheelbase (mm) 1107.0 1134.0


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