Classic geometry. Modern power.
960Wh
BATTERY
28mph
TOP SPEED
93mi
ECO RANGE
UL 2849
CERTIFIED
Torque
SENSOR
or $84/mo with Affirm · 0% APR
Complete Your Ride
Free shipping · ~20 min assembly · UL 2849 Certified · 2-year warranty
960Wh Battery
Biggest in class
28mph Class 3
Pedal assist speed
Up to 93 mi
Eco range
UL 2271 Battery
Certified safe
UL 2849 E-Bike
Full system certified
Torque Sensor
Dropout design
960Wh — Up to 93 mi on a single charge. More than any competitor at this price.
Surface 604 2025 Colt
960Wh
~93 mi
Aventon Level 3
708Wh
~69 mi
Lectric XPress 750
672Wh
~65 mi
Velotric Discover 3
691Wh
~67 mi
Ride1Up Vorsa
720Wh
~70 mi
Competitor ranges estimated proportionally from battery capacity. Actual ranges may vary.
| Mode | Range (mi) |
|---|---|
| PAS 1 (Eco) | 62–93mi |
| PAS 2 (Tour) | 43–62mi |
| PAS 3 (Standard) | 31–43mi |
| PAS 4 (Sport) | 22–31mi |
| PAS 5 (Turbo) | 16–22mi |
| Throttle Only | 25–34mi |
Range varies by rider weight, terrain, temperature, tire pressure, and wind. Upper range reflects lighter rider (~130 lbs) on gentle terrain. Lower range reflects heavier rider (~200 lbs) on moderate hills.
Built like a bike. Rides like a bike. Lasts like a bike.
The biggest battery in the commuter class. Ride to work, ride home, ride all weekend — one charge.
Keep up with traffic. The Colt's torque sensor delivers smooth, proportional power up to 28 mph.
UL 2271 (battery) + UL 2849 (complete bike). The only certification that tests the entire electrical system.
1
torque sensor since 2020
3
controller variants
20
min to replace
0
parts on backorder
Designed in Vancouver
Since 2014
3-Year Frame Warranty
All components
Free Shipping
Ready in ~20 min
50,000+ Riders
1,000,000 km logged
Every component is from a brand your mechanic already stocks.
SR Suntour XCM30 27.5 Suspension Fork
Kenda 27.5×2.1 Commuter Tires
Tektro Auriga Hydraulic Disc Brakes
Real rides. Real riders. From city commutes to coastal trails.
Surface 604 bikes come in two frame sizes. Use your height to find the right fit.
S/M
Riders 5'4" – 5'9"
163 – 175 cm
M/L
Riders 5'9" – 6'3"
175 – 190 cm
Between sizes? Go with S/M if you prefer a more upright position, M/L if you prefer to stretch out.
All Surface 604 bikes feature adjustable stems and ergonomic handlebars for fine-tuning your fit.
Independent reviews from trusted publications.
ElectricBikeReview.com · 2025
Surface 604 - Colt
Watch the full unboxing and assembly guide. Everything you need is included in the box.
Shimano Alivio 9-Speed Drivetrain
Dropout Torque Sensor
Color LCD Display
