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2023 Surface 604

Colt

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

Manufacturer Price

$2,499
Weight7.7 lbs (frame)  
SuspensionHardtail, 80mm
ForkSteel
Wheels650b Aluminum
Drivetrain1 × 9
GroupsetX5
MotorBafang 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

Colt

31 mph

Similar Bikes

Highest gear

(descending)

Sizing
17.5"

3'11" +

🐐 Estimated

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews
Electric Bike Review
Surface 604 Colt Review

Mar 2022

Price: $2499.00 | Model Year: 2022 | A sturdy high-step hybrid electric bike that comes in two frame sizes! Includes premium aluminum alloy fenders, deluxe rear rack, integrated lights, and two battery and charger options for long range. Relaxed handlebar, adjustable angle stem, high volume 27.5

Observations
  • A sturdy high-step hybrid electric bike that comes in two frame sizes! Includes premium aluminum alloy fenders, deluxe rear rack, integrated lights, and two battery and charger options for long range. Relaxed handlebar, adjustable angle stem, high volume 27.5" tires, ergonomic touch points, and optional suspension seat post 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 display brightness. Two integrated USB charging ports (one on the display and one on the battery pack) let you maintain portable electronics on the go or off the bike.

  • Excellent stopping power thanks to Tektro Auriga hydraulic disc brakes with large 180mm rotors, motor inhibitors, and brake blinking activation. Mid-level derailleur and nine-speed cassette provides plenty of cadence options for urban riding. Excellent safety features including bright headlight with side windows that's 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. 36 or 42 on some comparable models. Price has risen a bit in recent years, the large battery upgrade sticks out on the left side a bit vs. being symmetrical.

Read Review

Specs
Build
Fork

SR Suntour XCT Spring Suspension, 80 mm Travel, 28 mm Steel Stanchions, Lockout Adjust, Preload Adjust, 100 mm Hub Spacing, 9 mm 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°, 70 mm Base Height, 110 mm Length, One 20 mm Tapered Spacer, Two 10 mm Spacers, 31.8 mm Clamp Diameter

Handlebar

Aluminum Alloy, 30 mm Low-Rise, 710 mm Length, 45° Backsweep

Saddle

Selle Royal Essenza Plus

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
Rear Derailleur

1x9 SRAM X5 or Shimano Alivio

Crank

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

Shifters

SRAM X5 or Shimano Alivio Triggers on Right

Cassette

Shimano CS-HG201-9 11-32 Tooth

Brakes

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

TypeTektro Hydraulic Disc

Wheels
Rims

27.5

Electric Components
Motor

Type: Hub, Output: 500, Details: Bafang RM G020.500.DC, Weight: 7.7 lbs (3.49 kg)

Battery

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

Display

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

Accessories
Fenders

Yes

Racks

Yes

Rider Notes
Riders Also Viewed

First added October 28

Last updated November 25

Not listed for 556 days