2 models
Relaxed cruiser eBikes for the riders who enjoy the journey as much as the destination.
The right bike changes everything
Not every ride needs a destination. Cruiser eBikes are for the riders who want to feel the wind, enjoy the scenery, and arrive with a smile. The Sunny Day and Big Sky feature swept-back handlebars for the most relaxed riding position in the lineup, plus the same 960Wh battery and torque sensor technology as our commuter and mountain bikes. All the power. None of the rush.
960Wh
Ride all day, charge overnight
28mph
When you want to pick up the pace
Upright
Most relaxed position in lineup
Step-thru
Easy on, easy off
The Surface 604 Advantage
Specs don't lie. See how Surface 604 stacks up against the competition.
| Feature | Surface 604 Sunny Day | Aventon Pace 4 | Lectric XP Lite 2 | Velotric Discover 2 |
|---|---|---|---|---|
| Battery | 960Wh (48V 20Ah) | 720Wh (48V 15Ah) | 480Wh (48V 10Ah) | ~692Wh |
| Motor | 500W (750W peak) | 750W peak | 300W | 500W |
| Top Speed | 28mph PAS | 28mph | 20mph | 28mph |
| Brakes | Tektro Hydraulic | Hydraulic disc | Mechanical disc | Hydraulic disc |
| Drivetrain | Shimano 7sp | Belt drive | Single speed | Shimano 7sp |
| Torque Sensor | Dropout (serviceable) | Bottom bracket | Cadence | SensorSwap |
| Frame Style | Step-through | Step-through | Step-through | Step-through |
| UL Certified | 2271 + 2849 | 2271 + 2849 | UL 2271 | UL 2271 |
Specifications sourced from manufacturer websites as of 2026. Verify current specs before purchase.
Quality Components
Name-brand components you can trust — and any bike shop can service.
The most relaxed riding position in the lineup

Smooth, reliable stopping with one finger
Ride all day on a single charge

Smooth, natural power delivery
Real Riders
Not marketing copy. Real quotes from verified Surface 604 riders.
Expert Reviews
Every Surface 604 model has been independently reviewed by the industry's top publications.
As Reviewed By
Easy mounting for all riders and abilities

Front and rear for safe evening cruising
From the Blog
Tips, guides, and stories from the Surface 604 community.
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