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2021 Surface 604

Rook

A 650b aluminum frame commuter e-bike with mid-range components and tektro hydraulic disc brakes.

Manufacturer Price

$2,299
Weight61.2 lbs  
FrameAluminum
SuspensionHardtail, 80mm
ForkSuntour XCT
Wheels650b Aluminum
Drivetrain1 × 9
GroupsetX5
MotorBafang 500W 45Nm hub-drive
Battery672Wh
BrakesTektro Hydraulic Disc
Learn about Surface 604
Where to Buy
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

31 mph

Rook

31 mph

Similar Bikes

Highest gear

(descending)

Sizing
17.5"

3'11" +

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
Electric Bike Review
Surface 604 Rook Review

Feb 2022

Price: $2499.00 | Model Year: 2022 | An approachable step-through that comes in two frame sizes and two colors! This hybrid electric bike offers fenders, deluxe rear rack, integrated lights, and two battery options for long range. Relaxed handlebar, adjustable angle stem, high volume 27.5

Observations
  • An approachable step-through that comes in two frame sizes and two colors! This hybrid electric bike offers fenders, deluxe rear rack, integrated lights, and two battery options for long range. Relaxed handlebar, adjustable angle stem, high volume 27.5" tires, and ergonomic touch points offer comfort.

  • Unique combination of torque sensing pedal assist with trigger throttle that overrides for added power. Settings menu provides adjustable top speed, adjustable assist levels, and adjustable brightness. Two integrated USB charging ports (one on the display and one on the battery pack) to maintain portable electronics.

  • Excellent stopping power thanks to Tektro Auriga hydraulic disc brakes with large 180mm rotors and motor inhibitors and brake blinking activation. Mid-level derailleur and nine-speed cassette provides plenty of options for urban riding. Excellent safety features including bright headlight with side windows that is mounted up high on the stem, and reflective tires.

  • The battery charge port is next to the left crank arm which could make it vulnerable. No slap guard on the right chain stay, pedal assist can activate unexpectedly if the chain is bouncing excessively. Limited 11-32 tooth cassette vs. 34 or 42 on some comparable models. Price has risen a bit in recent years, the optional battery upgrade sticks out on the left side a bit vs. being symmetrical.

Read Review

Specs
Build
Frame

6061 Aluminum Alloy

Fork

SR Suntour XCT Spring Suspension, 80mm Travel, 28mm Steel Stanchions, Lockout Adjust, Preload Adjust, 100mm Hub Spacing, 9mm Axle with Quick Release Skewer

Travel80mm

Spring TypeCoil

Headset

Surface 604 Branded, Integrated, Sealed Cartridge, Straight 1-1/8"

Stem

Surface 604 Branded, Adjustable Angle 0° to 90°, 70mm Base Height, 110mm Length, One 20mm Tapered Spacer, Two 10mm Spacers, 31.8mm Clamp Diameter

Handlebar

Aluminum Alloy, 30mm Low-Rise, 700mm Length, 15° Backsweep

Saddle

Selle Royal FreeWay, Gel

Seatpost

Aluminum Alloy with Forged Single-Bolt Clamp

TypeRigid

Pedals

Wellgo Aluminum Alloy Platform, Wide with Integrated Pins, Black

Grips

Stitched Faux Leather, Ergonomic, Black, Locking

Groupset
Crank

Samox, Forged Alloy, 170mm Length, Sealed Cartridge Bearings, Hollow Spindle, 42 Tooth Steel Chainring

Shifters

SRAM X5 or Shimano Alivio Triggers on Right

Cassette

9 Speed 1x9 SRAM X5 or Shimano Alivio Derailleur, Shimano CS-HG201-9 Cassette 11-34 Tooth

Brakes

Tektro Auriga Hydraulic Disc with 180mm Rotors, Dual-Piston Calipers, Three-Finger Tektro Levers Motor Inhibitors and Adjustable Reach

TypeTektro Hydraulic Disc

Wheels
Rims

Double Wall, 6061 Aluminum Alloy, 35mm Outer Width, 36 Hole, Black

Spokes

Stainless Steel, 13 Gauge, Black

Tires

Custom Panaracer, 27.5" x 2.40" (60-584)

Electric Components
Motor

Weight: 7.7 lbs (3.49 kg), Brand: Bafang RM G020.500.DC, Type: Rear-Mounted Geared Hub, Nominal Output: 500 watts, Peak Output: 750 watts, Torque: 45 Newton meters

Battery

Weight: 7.7 lbs (3.49 kg) (672wh Battery, 10lb for 960wh Battery), Brand: Samsung 18650 or 21700 (3,500mAh or 5,000mAh Cells), Reention Dorado Casing or Custom Casing, Voltage: 48 volts, Amp Hours: 14 ah (Optional 20ah), Watt Hours: 672 wh (Optional 960wh), Chemistry: Lithium-ion

Display

Surface 604 Branded, Fixed, Adjustable Angle, 3.5" Color, Backlit LCD, USB Type A Charging Port

Rider Notes
Riders Also Viewed

First added September 3

Last updated September 3

Not listed for 1,369 days