Surface 604 Rook


Pricing is for New In Box, Unbuilt

Bike Assembly, Tuning & 1 Month Service Labour Warranty is $149

Bike Assembly, Tuning & 3 Month Service Labour Warranty is $219

Please see our Bike Assembly page for more information!


Powerful 500W Motor

  • Purpose built for top speed 500W 48V electric motor. Feel the surge of quiet, consistent power distribution at higher speeds – vibration-free.
  • Geared for performance – we paired all that power with an industry-leading 12mosfet 25A controller, so Twist delivers unmatched torque and speed.
  • Watch out for other riders as you zip pass them.


Whisper Smooth Torque Sensing Pedal Assist

  • Because an electric bike is only as good as it’s power distribution.
  • Rook’s incredibly smooth torque sensor knows how hard you’re pedalling down to the microsecond and matches it with 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 so smooth as a mid-drive motor.

Long Range Battery

Offering two high-capacity battery options:

  • 48V14ah (672wh) 3500mah cell size, Samsung Cells 18650, Made in Korea, USB Plug, capacity indicator button, Range up to 45 Miles (72 Kms), Weight: 7.59 LBS (3.45 KG)


  • 48V20ah (960wh) 5000mah cell size, (Same as in Tesla), Samsung Cells 21700, Made in Korea, USB Plug, capacity indicator button, Range up to 65 Miles (105 Kms), Weight: 10.23 LBS (4.65 KG)

2022 Updates


Re-designed handlebar on. Swept-back, cruiser design for a more comfortable riding position. 710mm wide, 30mm rise, 45 degree sweep.


Selle Royal “Essenza Plus” saddle. Designed for city and tour use. Adjustable up to 9 degrees.


Redesigned headlight positioning and a new Buchel Secu Forte ebike LED headlight with 150 lumens.

Software Update

SURFACE604 Display Updated Software: Select your desired pedal assist range, adjustable torque settings, bug fixes, and more.

Technical Specifications:

MOTOR: 500W (Peaks at 750W) Bafang Geared Rear Hub Brushless Motor
UPGRADED MOTOR WIRE HARNESS: 30Ah, can handle up to 120C current
DRIVE MODE: Drop Out Torque Sensing Pedal Assist with a Throttle
TORQUE: 65Nm of Torque
THROTTLE: Thumb Push Activated Throttle
CONTROLLER: SURFACE604 Designed 12 MOS 48V 500W 25Ah, Smart
TOP SPEED: 20mph (32kmh)*, Comes as Class 2
(Unlocked) 25mph (40kmh), as Class 3
BATTERY: Included: 48V 14Ah / 672Wh Samsung Lithium-Ion 18650 Cells
Upgrade Option: 48V 20Ah / 960Wh Samsung lithium-ion 18650 Cells
BATTERY RANGE: Up to 45mi (72km) with a 48V14Ah Battery
BATTERY CHARGE TIME: 3-4 Hours for a Full Charge from Empty
DISPLAY TYPE (NEW): SURFACE604 Color LCD Display with Micro USB Jack
Bigger display: 3.5″ since 2021 vs. 3.2″ for 2020
FORK: SR Suntour XCM 27.5 Suspension Fork – 80mm with Quick Release
REAR DERAILLEUR: Shimano Alivio 9-Speed
CASSETTE: Shimano 12-34T
BRAKES: TEKTRO Auriga Hydraulic Disc Brakes, Post Mount, with Motor Inhibitors
CRANK SET: SAMOX 42T Front Sprocket
ROTORS: 180mm Front/Rear x 2.34mm thick with Motor Inhibitors
BOTTOM BRACKET: SAMOX Sealed Bottom Bracket
FRAME TYPE: Tapered Headtube, Custom Reinforced Battery Mounts, Internal Cable Routing, Post Mount Brakes
FRAME MATERIAL: 6061 Aluminum Alloy
STEM: SATORI Up2+, Adjustable
FENDERS: SKS Fenders made in Germany
LIGHTS: BUCHEL front/rear lights
HANDLEBAR: PROMAX Aluminum, 30mm Rise With 15º Backsweep and 700mm Wide
GRIPS: PU Leather Wrapped, Full Length 145mm
PEDALS: WELLGO Platform with Die Casting Body
CHAIN: KMC 9-speed
WHEELS/TIRES: Panaracer 27.5″ x 2.4″ Custom S604 Tires with Puncture Protection and Reflective Sidewall
RIMS: Aluminum Alloy Double Wall Rim, 27.5″ x 13G x 36H
KICKSTAND: Adjustable Heavy-Duty Aluminum
STANDOVER HEIGHT: Small-Medium: 28.5″ (724mm)
Medium-Large: 30″ (762mm)
RECOMMENDED RIDER HEIGHT: S/M: 5’2″ – 5’7″, M/L: 5’8″ – 8’8″
NET WEIGHT (INCLUDING BATTERY): 26.6kg/58lbs (14Ah Battery) or 27.75kg/61lbs (20Ah Battery)
WEIGHT CAPACITY: 285lbs (130kg)
STANDARD FEATURES: Adjustable Kickstand, Water Bottle Bosses, Welded Rear Rack, Chain Guide
NEW FEATURES: Bigger wheels, wider tires – smoother ride. New handlebar – more comfortable grip and seating position.


Additional information

Battery Capacity

14Ah, 20Ah