ONE-YEAR WARRANTY
FOR RIDERS 5'2" - 8'8"
ADDITIONAL 2021 TWIST ACCESSORIES
FIND OUT WHAT SIZE FITS YOU
A rider's height is best determined for size with Black (17.5" frame) optimal for people 5'2" to 5'7" and Blue (19.5" Frame) ideal for those 5'8" to 6'6".
SIZE GUIDE
| SIZE | FRAME | RIDER'S HEIGHT |
|---|---|---|
| Black | 17.5" | 5'2" TO 5'7" |
| Blue | 19.5" | 5'8" TO 6'6" |
Weight capacity for both sizes is 285lbs (130kg)
WARRANTY POLICY:
All of our e-bike models come with a three-year frame warranty plus a one-year or 800km (whichever comes first) replacement warranty on major parts. If a part is defective in manufacturing process we will replace it free of charge. All parts can be easily ordered on our website.
RETURN POLICY:
We are so confident in the quality of our e-bikes and know that you will love them. As such, we are proud to offer a 7-day no questions asked money back guarantee on all of our models.
* Only applies to customers who buy their bike directly from the Surface 604 website
ADDITIONAL ACCESSORIES
CHOOSE A SIZE
FIND OUT WHAT SIZE FITS YOU
A rider's height is best determined for size with Black (17.5" frame) optimal for people 5'2" to 5'7" and Blue (19.5" Frame) ideal for those 5'8" to 6'6".
SIZE GUIDE
| SIZE | FRAME | RIDER'S HEIGHT |
|---|---|---|
| Black | 17.5" | 5'2" TO 5'7" |
| Blue | 19.5" | 5'8" TO 6'6" |
Weight capacity for both sizes is 285lbs (130kg)
WARRANTY POLICY:
All of our e-bike models come with a three-year frame warranty plus a one-year or 800km (whichever comes first) replacement warranty on major parts. If a part is defective in manufacturing process we will replace it free of charge. All parts can be easily ordered on our website.
RETURN POLICY:
We are so confident in the quality of our e-bikes and know that you will love them. As such, we are proud to offer a 7-day no questions asked money back guarantee on all of our models.
* Only applies to customers who buy their bike directly from the Surface 604 website
Reviews
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.
UNLOCKED 25MPH (40KMH) CLASS 3
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.
UNLOCKED 25MPH (40KMH) CLASS 3
KEY
TECH SPECS
POST MOUNT, WITH MOTOR INHIBITORS
WITH MICRO USB JACK
MOTOR
500W (Peaks at 750W) Bafang Geared Rear Hub Brushless Motor
DRIVE MODE
Drop Out Torque Sensing Pedal Assist with a Throttle
TORQUE
65Nm
THROTTLE
Thumb Push Activated Throttle
CONTROLLER
SURFACE604 Designed 12 MOS 48V 500W 17Ah, 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 - Integrated
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" for 2021 vs. 3.2" for 2020
REAR DERAILLEUR
Short Cage SRAM X5 Groupset - 9 Speed
CASSETTE
X5 12-34T
SHIFT LEVERS
SRAM X5 Trigger Shift
BRAKES
TEKTRO Auriga Hydraulic Disc Brakes, Post Mount, with Motor Inhibitors
CRANK SET
SAMOX 38T Front Sprocket, 170mm Crank Arms
ROTORS
180mm Front/Rear x 2.34mm thick
FRAME TYPE
Folding, Low Step Thru Geometry
Internal Cable Routing, Post Mount Brakes
FRAME MATERIAL
6061 Aluminum Alloy
FENDERS
SKS made in Germany
PEDALS
Wellgo Platform
CHAIN
KMC 9-speed
SEAT POST DIAMETER
30.4mm
WHEELS/TIRES
Panaracer 20” X 4.00 Tires, All Purpose
KICKSTAND
Adjustable Heavy-Duty Aluminum
GRIPS
PU Leather Wrapped, Full Length 145mm
STANDOVER HEIGHT
Adjustable to the Height of The Rider, One Size Fits All
NET WEIGHT (INCLUDING BATTERY)
50lbs
WEIGHT CAPACITY
285lbs (130kg)
OTHER
Adjustable Kickstand, Water Bottle Bosses, Welded Rear Rack
OPTIONAL UPGRADE FEATURES
CX Suspension Seat Post
| M/L | ||
|---|---|---|
| TTH. | Top Tube Length (mm) | 632 |
| HTA. | Head Tube Angle (deg) | 70 |
| HTL. | Head Tube Length (mm) | 187 |
| STA. | Seat Tube Angle (deg) | 74 |
| STL. | Seat Tube Length (mm) | 457 (18") |
| CSL. | Chainstay Length (mm) | 440 |
| WB. | Wheelbase (mm) | 1158 |
KEY
TECH SPECS
POST MOUNT, WITH MOTOR INHIBITORS
WITH MICRO USB JACK
VIEW ALL TECH SPECS
MOTOR
500W (Peaks at 750W) Bafang Geared Rear Hub Brushless Motor
DRIVE MODE
Drop Out Torque Sensing Pedal Assist with a Throttle
TORQUE
65Nm
THROTTLE
Thumb Push Activated Throttle
CONTROLLER
SURFACE604 Designed 12 MOS 48V 500W 17Ah, Smart
TOP SPEED
(Unlocked) 25mph (40kmh), as Class 3
BATTERY
Included: 48V 14Ah / 672Wh Samsung Lithium-Ion 18650 Cells - Integrated
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" for 2021 vs. 3.2" for 2020
REAR DERAILLEUR
Short Cage SRAM X5 Groupset - 9 Speed
CASSETTE
X5 12-34T
SHIFT LEVERS
SRAM X5 Trigger Shift
BRAKES
TEKTRO Auriga Hydraulic Disc Brakes, Post Mount, with Motor Inhibitors
CRANK SET
SAMOX 38T Front Sprocket, 170mm Crank Arms
ROTORS
180mm Front/Rear x 2.34mm thick
FRAME TYPE
Folding, Low Step Thru Geometry
Internal Cable Routing, Post Mount Brakes
FRAME MATERIAL
6061 Aluminum Alloy
FENDERS
SKS made in Germany
PEDALS
Wellgo Platform
CHAIN
KMC 9-speed
SEAT POST DIAMETER
30.4mm
WHEELS/TIRES
Panaracer 20” X 4.00 Tires, All Purpose
KICKSTAND
Adjustable Heavy-Duty Aluminum
GRIPS
PU Leather Wrapped, Full Length 145mm
STANDOVER HEIGHT
Adjustable to the Height of The Rider, One Size Fits All
NET WEIGHT (INCLUDING BATTERY)
50lbs
WEIGHT CAPACITY
285lbs (130kg)
OTHER
Adjustable Kickstand, Water Bottle Bosses, Welded Rear Rack
OPTIONAL UPGRADE FEATURES
CX Suspension Seat Post
| M/L | ||
|---|---|---|
| TTH. | Top Tube Length (mm) | 632 |
| HTA. | Head Tube Angle (deg) | 70 |
| HTL. | Head Tube Length (mm) | 187 |
| STA. | Seat Tube Angle (deg) | 74 |
| STL. | Seat Tube Length (mm) | 457 (18") |
| CSL. | Chainstay Length (mm) | 440 |
| WB. | Wheelbase (mm) | 1158 |
WATCH WHY ELECTRIC BIKE REVIEW LOVES THE TWIST
SUITABLE ACCESSORIES
BIKES SHIPPED ASSEMBLED
