2021 Surface604 Rook 20ah
POWERFUL 500W MOTOR
The Rook comes equipped with a 500W hub motor that is extremely powerful (peaks at 750W).
With a torque sensor and throttle on demand, the Rook 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 Rook 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.
Precision torque sensing performance at 104 cadence pulses per revolution; 1,000 torque samples per second.
Rook's incredibly smooth torque sensor knows how hard
you’re pedalling down to the microsecond and matches it with proportionate power.
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.
Gone are the days of simple cadence sensors!
LONG RANGE BATTERY
Rook's high capacity 48V 14Ah Samsung lithium-ion battery provides maximum range.
Rook can handle heavy loads and travel up to 35 miles on a single charge.
As an added bonus the battery also features a USB plug for charging mobile device on the go.
Upgrade to 48V21Ah battery is available.
500W (Peaks At 750W) Bafang Geared Hub Brushless Motor
UPGRADED MOTOR WIRE HARNESS
30Ah, can handle up to 120C current
Drop Out Torque Sensing Pedal Assist with a Throttle
Thumb Push Activated Throttle
SURFACE604 Designed 12 MOS 48V 500W 17Ah, Smart
20mph (32kmh)*, Comes as Class 2
(Unlocked) 28mph (45kmh), as Class 3
Included: 48V 14Ah / 672Wh Samsung lithium-ion 18650 cells
Upgrade option: 48V 20Ah / 1008Wh Samsung lithium-ion 21700 cells
Upto 45mi (72km) with a 48V14Ah Battery
Upto 65mi (105km) with a 48V20Ah 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" for 2021 vs. 3.2" for 2020
FORK - UPGRADED SUSPENTION
SR SUNTOUR XCM 32. 29er, 100mm with Axle Thru Hub
DERAILLEUR - REAR
SHIMANO ALIVIO 9 Speed
TEKTRO Auriga Hydraulic Disc Brakes, Post Mount, with Motor Inhibitors
SAMOX 42T Front Sprocket
180mm Rotor Front/Rear x 2.34mm thick with Motor Inhibitors
SAMOX Sealed Bottom Bracket
Tapered Headtube, Custom Reinforced Battery Mounts,
Internal Cable Routing, Post Mount Brakes
6061 Aluminum Alloy
SATORI Up2+, Adjustable
SKS fenders made in Germany
BÜCHEL front/rear lights
PROMAX Aluminum, 30mm Rise With 15° Backsweep and 700mm Wide
PU Leather Wrapped, Full Length 145mm
WELLGO Platform, with Die Casting Body
SEAT POST DIAMETER
KENDA KWICK 27.5" X 2.4" with Reflective Trim
Aluminum Alloy Double Wall Rim, 27.5″x13Gx36H
Adjustable Heavy-Duty Aluminum
Small-Medium: 20” (508mm)
Medium-Large: 21.5” (546mm)
Sizes: S/M - 17.5", M/L 19.5"
NET WEIGHT (INCLUDING BATTERY)
Welded Rear Rack, Adjustable Kickstand, Chain Guide, Water Bottle Bosses
OPTIONAL UPGRADE FEATURES
21700 Panasonic Cells 48V20Ah Battery, NCX Suspension Seat Post
Bigger wheels, wider tires - smoother ride
New handle bar - more comfortable grip and seating position
Questions about this bike? Ask us.