With simplicity, light weight, and durability at its core, the S1 provides the freedom to ride faster, climb higher, and explore further than ever before.
Single-Speed X Power Assist
3-level assist mode
The S1 redefines what's possible in single-speed cycling,
providing unprecedented comfort and making riding easier and more fun.
Integrated Battery Design
252Wh 7Ah
Placing the battery inside the frame protects the battery from prolonged vibration and friction. This design retains the structural integrity of the frame, ensuring safety under various riding conditions.
High-Efficiency Brushless Motor
250Ｗ 40Nm
Motor assistance provides extra power, making starting easier, especially when facing uphill or headwinds. helping you to tackle a wide range of conditions and situations with ease.
Smart Sensing System
32 pulses per rotation
The S1 automatically senses your pedal force with smooth and progressive power assistance, providing the most natural and intuitive riding experience.
Gates Carbon Drive™ CDX
30,000 km maintenance-free
Free yourself from oily and rusty chains, and enjoy a clean, smooth, strong carbon fiber belt.
Our carbon-reinforced belt drive offers a silent ride, last longer and stays cleaner than a chain, never needs grease, and is nearly maintenance free.
Bike Frame Design
Bike weight at only 15.4Kg
The ultra-light steel frame is both fast and stable. The bike feels light and responsive and features not only a better power transmission, but also excellent shock absorption. Our agile yet stable design gives the S1 a distinctive riding character.
Detail Features
Integrated Front Light
Powered by the bike battery, 70 lux, 6m wide and up to 150m distance of beam visibility ahead, 6V with a power consumption of 4 Watt, Rated IP56.
Integrated Rear Light
Powered by the bike battery, 7200 mcd highly efficient rear light, 240-degree wide visibility, 6V with a power consumption of 0.6 Watt, Rated IP56.
1.5” LCD HMI
Fast switching of assistance levels, turn on/off the lights, speed and battery display, and USB 3.0 support for smartphone charging.
Charging Dock
Fully charge the battery in just three hours with our waterproof and dustproof charging dock.
Hydraulic Disc Brakes
Hydraulic disc brakes deliver precise braking performance in all weather conditions.
Kenda 700Cx35mm
Built for all the roads your journey will take you down. From bike path to city streets. Approved by the ECE-R75 E-Bike rating.
Integrated Front Light
Powered by the bike battery, 70 lux, 6m wide and up to 150m distance of beam visibility ahead, 6V with a power consumption of 4 Watt, Rated IP56.
Integrated Rear Light
Powered by the bike battery, 7200 mcd highly efficient rear light, 240-degree wide visibility, 6V with a power consumption of 0.6 Watt, Rated IP56.
1.5” LCD HMI
Fast switching of assistance levels, turn on/off the lights, speed and battery display, and USB 3.0 support for smartphone charging.
Charging Dock
Fully charge the battery in just three hours with our waterproof and dustproof charging dock.
Hydraulic Disc Brakes
Hydraulic disc brakes deliver precise braking performance in all weather conditions.
Kenda 700Cx35mm
Built for all the roads your journey will take you down. From bike path to city streets. Approved by the ECE-R75 E-Bike rating.
Rider Assist APP
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Rider Assist APP
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iDrive
Personalized Smart Settings
Support riders to adjust the power level setting precisely and adapt to different riding plans in real time.
iDrive
Personalized Smart Settings
Support riders to adjust the power level setting precisely and adapt to different riding plans in real time.
Maps
The Range Map
The Range Map feature shows you the estimated riding range for each of the different power levels of your eBike, based on the current remaining battery level, to help you plan your next rides.
Maps
The Range Map
The Range Map feature shows you the estimated riding range for each of the different power levels of your eBike, based on the current remaining battery level, to help you plan your next rides.
Dashboard
Freely choose a total of 15 different riding information on the dashboard, e.g., current speed, average speed, odometers, range.
Dashboard
Freely choose a total of 15 different riding information on the dashboard, e.g., current speed, average speed, odometers, range.
Review
Data Reviews & Records
Simply connect your E-Bike to your smartphone during your ride. You can access precise activity data after the ride, including weekly, monthly and yearly riding data, historical routes and more. All data is securely stored in a cloud database.
Review
Data Reviews & Records
Simply connect your E-Bike to your smartphone during your ride. You can access precise activity data after the ride, including weekly, monthly and yearly riding data, historical routes and more. All data is securely stored in a cloud database.
Product Specification
| Frame size | 46, 50, 54cm |
| Color | Slivery Grey / Matt Black |
| Fork | T6061 Aluminum fork, tire clearance up to 40mm |
| Handlebar | T6061 Aluminum 600mm width |
| Steam | T6061 internal cable routing 70-110mm |
| Disk Brake-Front | Shimano BL-MT201-L |
| Disk Brake-Rear | Shimano BL-MT201-R |
| Brake Caliper-Front | Shimano BR-UR300-F |
| Brake Caliper-Rear | Shimano BR-UR300-R |
| Seat Post | Surcle T6061 Aluminum Ø31.6mm |
| Saddle | Surcle comfort ride |
| Grips | Surcle rubber grips |
| Transmission | Gates Carbon Belt - CDX, 118T |
| Front Sprocket | Gates Carbon Drive CDX 55T |
| Rear Sprocket | Gates CDX 19T |
| Wheels | T6061 Aluminum Wheel set |
| Tires | Kenda ALL-ROUND 700x35C |
| Hub Motor | 36V / 250W / 40Nm |
| Battery | Panasonic Lithium battery cells 36V / 7Ah / 252Wh |
| Charger | 2A Charger |
Surcle S1 Pro
SLEEK. CLASSIC. ELECTRIC
Surcle S1 Pro
SLEEK. CLASSIC. ELECTRIC