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2023 Surface 604

Twist

A 20″ aluminum frame folding e-bike with mid-range components and tektro hydraulic disc brakes.

Manufacturer Price

$2,399
Weight8.2 lbs (frame)  
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels20″ Aluminum
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)

24 mph

Twist

22 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 Twist Review

Jul 2023

Price: $2399.00 | Model Year: 2023 | A folding fat tire electric bike with approachable step-thru frame. Low stand over height and low minimum saddle position. Two colors including satin black and satin grey. Large color LCD with USB port for charging electronics, powerful geared hub motor, clean wires and decals, quality 10-speed SRAM X5 drivetrain.

Observations
  • A folding fat tire electric bike with approachable step-thru frame. Low stand over height and low minimum saddle position. Two colors including satin black and satin grey. Large color LCD with USB port for charging electronics, powerful geared hub motor, clean wires and decals, quality 10-speed SRAM X5 drivetrain.

  • Good weight distribution with the battery pack low and center on the frame. The charging port and locking cylinder are high on the main tube, making them easier to access. The sturdy integrated rear rack, wide fenders, lights, and reflective tires make it safe and flexible in a wide range of conditions.

  • Free shipping and in-person availability through 90+ dealers. Powerful hydraulic disc brakes with motor inhibitor and brake light blinking mode. Torque sensing pedal assist is responsive and natural, trigger throttle overrides assist. Optional fast charger, trunk bag, pannier bags, suspension seat post, and more.

  • Kickstand mount is fairly close to left crank arm, and could get kicked while pedaling. Torque sensor may surge or activate unintentionally on rough terrain. Weighs 59lbs due to large motor, fenders, lights, and integrated rack. No mechanism to keep the bike folded, such as a magnet or strap, and no derailleur guard.

Read Review

Specs
Build
Frame

6061 Aluminum Alloy

Fork

Rigid Aluminum Alloy, 135 mm Hub Spacing, 9 mm Axle with Quick Release Skewer

Headset

Integrated, Open Bearings, Quill, Straight 1-1/8"

Stem

Aluminum Alloy, Folding, 12° Forward Angle, 31.8 mm Clamp

Handlebar

Aluminum Alloy, 660 mm Length, Low-Rise, 6° Backsweep, 30 mm Rise

Saddle

Selle Royal Essenza Plus+

Seatpost

Aluminum Alloy with Forged Single-Bolt Clamp

TypeRigid

Pedals

Wellgo K79 F265 Aluminum Alloy Platform with Integrated Pins, Folding, Black

Grips

Stitched Faux Leather, Ergonomic, Black

Groupset
Rear Derailleur

SRAM X5 Short Cage

Crank

Samox, Forged Aluminum Alloy, 170 mm Length Crank Arms, Sealed Cartridge Bearings, Hollow Axle, 44 Tooth Steel Chainring

Shifters

SRAM X5 Triggers on Right (One-Way High, Three-Shift Low)

Cassette

SRAM 11-36 Tooth

Brakes

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

TypeTektro Hydraulic Disc

Wheels
Rims

20"

Spokes

Stainless Steel, 13 Gauge, Black

Tires

CST Big Boat, 20" x 4.0" (98-406)

Electric Components
Motor

Type: Hub, Output: 500, Details: Bafang RMG060.500.DC, Weight: 8 lbs

Battery

Watt Hours: 672 Wh, Details: Samsung 18650 3,500 mAh, Reention Casing, 48 Volt, Lithium-ion, 14 Amp Hrs, 8.2 lbs, Weight: 8.2 lbs

Display

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

Charger

1.5 lb 2 Amp Charger, Optional 4 Amp Fast Charger

Accessories
Lights

Integrated Shiny 120 LED Headlight (120 LUX), Integrated Büchel Tivoli 2-LED Rear Light (Blinks When Braking)

Fenders

Plastic Fenders (100 mm Width)

Racks

Welded-On Rear Rack with Top Platform and Bungee Loops (50 lb Max Load)

Rider Notes
Riders Also Viewed

First added July 15

Last updated October 14

Not listed for 598 days