1 model
A folding eBike with a 672Wh battery. Compact storage. Full-size adventure.
The right bike changes everything
Space is expensive. A folding eBike fits in your apartment closet, your car trunk, your boat cabin, or your RV. The Twist folds in seconds but rides like a full-size bike — with a 672Wh battery that's still bigger than most competitors' full-size bikes, 20-inch fat tires for stability, and the same torque sensor and motor as our full-size models. No compromises.
672Wh
Biggest battery in any folding eBike
20x4"
Fat tires for stability
3 colors
Black, White, Blue
62 lbs
With battery installed
1 products
The Surface 604 Advantage
Specs don't lie. See how Surface 604 stacks up against the competition.
| Feature | Surface 604 Twist | Aventon Sinch 2.5 | Lectric XP4 750 | Velotric Fold 1 Plus | Ride1Up Portola |
|---|---|---|---|---|---|
| Battery | 672Wh (48V 14Ah) | ~504Wh (36V 14Ah) | 840Wh (48V 17.5Ah) | ~499Wh (48V 10.4Ah) | 480Wh (48V 10Ah) |
| Motor | Bafang 500W | 750W | 750W | 500W | 750W |
| Top Speed | 28mph PAS | 20mph | 28mph | 20mph | 28mph |
| Brakes | Tektro Auriga Hyd. | Hydraulic disc | Mechanical disc | Hydraulic disc | Mechanical disc |
| Drivetrain | SRAM 9-speed | Shimano 8sp | Shimano 7sp | Shimano 8sp | Shimano 7sp |
| Tires | 20x4" fat | 20x4" | 20x3" | 20x4" | 20x3" |
| Torque Sensor | Dropout | Cadence | Cadence + torque | SensorSwap | Torque |
| UL Certified | 2271 + 2849 | UL 2271 | UL 2271 | UL 2271 | UL 2849 |
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.
Proven reliability in thousands of eBikes worldwide
Superior to mechanical disc on most folding competitors
More gears than most folding competitors offer
More stability and grip than narrow-tire folders
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
Folds in under 30 seconds for easy storage
Black, White, and Blue to match your style
From the Blog
Tips, guides, and stories from the Surface 604 community.
Visit the Blog→
