SR/S
$20,995
*Product specifications and price may vary; this is an approximate reference.
Full Specifications
| Engine | Z-Force 75-10 enhanced thermal efficiency, interior permanent magnet, AC motor |
| Displacement | 17.3 kWh (Battery) |
| Power | 110 HP |
| Torque | 190 Nm / 140 lb-ft |
| Weight | 235 kg (518 lbs) |
| Seat Height | 787 mm / 31.0" |
| Fuel Capacity | 17.3L / 4.6 gal |
| Transmission | Clutchless Direct Drive |
| Fuel Type | Electric |
Electronics
Rider Modes
Performance & Efficiency
- Top Speed
- 124 mph
- 0-60 mph
- 3.2 sec
Reliability & Ownership
Reliability Electric powertrains are inherently more reliable than internal combustion due to having only one moving part in the motor. The 2025 Zero SR/S uses the mature Cypher III+ operating system, which has smoothed out previous software bugs. The main long-term reliability factor is battery health, which Zero covers with a five-year, unlimited-mileage warranty. The lack of valves, pistons, or clutches removes the most common failure points found in traditional sport-tourers.
Maintenance Minimal maintenance: Inspect drive belt every 1,000 miles, replace coolant every 5 years, and brake fluid/pads as needed.
Comfort & Ergonomics
The SR/S is designed with 'elevated' ergonomics compared to its naked sibling, the SR/F. The footpegs are lower and the handlebars are higher, creating a relaxed, neutral seating position that suits long-distance commutes. Wind protection from the full fairing is excellent, reducing rider fatigue at highway speeds. Heat management is a non-issue as there is no exhaust or radiator blast hitting the rider's legs, though the motor can get warm under spirited riding.
Overview
" The Silent Grand Tourer "
The 2025 Zero SR/S represents the absolute peak of what an electric motorcycle can be for the everyday rider. While many electric bikes focus on gimmicky acceleration or futuristic aesthetics, the SR/S leans into the 'Sport-Touring' identity with a full fairing that improves aerodynamic efficiency by 13% over the naked version. It is built around the intelligent Cypher III+ operating system, allowing riders to manage a massive 190 Nm of torque with surgical precision. This isn't just a commuter; it is a serious machine designed for those who want the performance of a liter-bike without the vibration, noise, or maintenance overhead of a gasoline engine. For 2025, the increased battery capacity and faster charging options make it a more viable alternative for weekend canyon carving than ever before.
WikiMoto Verdict
"The most refined electric motorcycle on the market, offering effortless speed and sophisticated tech for the modern rider."
In-Depth Review
Engine (Motor) and Power Delivery
The heart of the 2025 Zero SR/S is the Z-Force 75-10 motor. Unlike a gasoline engine that needs to ‘spool up’ to its powerband, the SR/S provides its peak 190 Nm of torque the moment you twist the throttle from a standstill. The acceleration is deceptive; because there is no engine roar or gear changes, you often find yourself doing 80 mph when you thought you were doing 50. The power delivery is governed by the Cypher III+ OS, which does a masterful job of ensuring the rear tire doesn’t simply spin into smoke. In ‘Sport’ mode, the throttle response is instantaneous and aggressive, while ‘Eco’ mode introduces heavy regenerative braking, allowing for ‘one-pedal’ style riding where you rarely need to touch the physical brakes in traffic.
Handling and Braking
Weight is the traditional enemy of electric bikes, and at 518 lbs, the SR/S is no featherweight. However, because the battery and motor are mass-centralized and sit very low in the trellis frame, the bike hides its weight remarkably well once in motion. The Showa Big Piston Separate Function forks and Rear Piggyback shock are fully adjustable, providing a ride that is firm enough for aggressive cornering but compliant enough to soak up highway expansion joints. Braking is handled by dual J.Juan 4-piston radial calipers clamping 320mm discs. Combined with the Bosch Advanced MSC (Motorcycle Stability Control), the braking performance is top-tier, offering cornering ABS that feels natural and non-intrusive.
Technology and Features
Zero leads the industry in software integration. The 5-inch TFT dashboard is crisp and highly customizable. Through the Zero app, you can adjust top speed, torque limits, and regeneration levels. The 2025 model comes standard with the ‘Park Mode,’ which includes a low-speed reverse—a godsend when backing this heavy machine out of an inclined parking space. The 6kW integrated charger can be supplemented with an optional 6kW Charge Tank, bringing the total charging capacity to 12kW. On a Level 2 charger, this can replenish the battery from 0% to 95% in about an hour, making a lunch-break charge a reality for touring.
Verdict
The Zero SR/S remains the most ‘normal’ feeling electric motorcycle, which is its greatest strength. It doesn’t try to reinvent the wheel; it simply replaces the combustion engine with a power plant that is smoother, quieter, and faster in real-world scenarios. While the MSRP remains high compared to gasoline competitors like the Kawasaki Ninja 1000SX, the lack of fuel costs and maintenance makes the total cost of ownership more competitive over time. It is a premium product for a rider who values refinement and the unique, jet-like experience of silent speed.