Introduction
Yamaha’s FZ-S series has long been a favorite in the 150cc commuter segment. With the 2025 FZ-S Fi Hybrid, Yamaha introduces a unique mild-hybrid system in this category. Featuring Smart Motor Generator (SMG) assist, a Stop & Start System (SSS), and upgraded tech like a TFT cluster with smartphone connectivity, it promises better refinement, improved efficiency, and modern features without losing its classic FZ charm.
This review puts the hybrid tech through its paces—testing acceleration, handling, braking, mileage, and everyday usability.
What Makes It Hybrid?
- Smart Motor Generator (SMG): Works as a starter motor and provides torque assist at low RPMs, ensuring smoother launches and less strain on the engine.
- Stop & Start System (SSS): Automatically turns off the engine when idling and restarts instantly when the clutch is engaged, saving fuel in traffic.
- TFT Display & Y-Connect: A modern 4.2-inch TFT display integrates with your smartphone for turn-by-turn navigation, call/SMS alerts, and ride data logging.
Engine & Specifications
| Specification | Detail |
|---|---|
| Engine | 149cc, air-cooled, Blue-Core FI |
| Power | 12.4 PS @ 7,250 rpm |
| Torque | 13.3 Nm @ 5,500 rpm |
| Transmission | 5-speed manual |
| Kerb Weight | 138 kg |
| Seat Height | 790 mm |
| Claimed Fuel Economy | Up to 60 km/l |
| Claimed Top Speed | 100–115 km/h |
Real-World Performance Testing
Acceleration & Braking
- 0–60 kph: ~5.7 seconds
- 0–90 kph: ~15.1 seconds
- Braking (60–0 kph): ~16.5 meters
The hybrid assist is most noticeable in the first few seconds after take-off, providing smoother and quieter launches. Straight-line acceleration remains in line with standard FZ-S figures.
Fuel Efficiency FZ-S Fi Hybrid
- City Riding: ~51–52 km/l
- Highway: ~48 km/l
- Average Range: 47–52 km/l
While the ARAI claim is 60 km/l, real-world results depend on riding style, traffic conditions, and load.
Ride Quality & Handling
- Ergonomics: Upright riding posture, cushioned seat, and relaxed footpeg position make it comfortable for long commutes.
- City Agility: Lightweight frame and easy steering make weaving through traffic effortless.
- Suspension: The soft setup handles bumps well, although aggressive cornering reveals a commuter-oriented tuning.
Connectivity & Convenience
The FZ-S Fi Hybrid integrates modern connectivity features, letting riders link their smartphones via the Yamaha Y-Connect app. This unlocks features like:
- Navigation assistance
- Call and message notifications
- Fuel consumption tracking
- Maintenance alerts
Pros & Cons
Pros
- Excellent mileage for a 150cc bike
- Smooth starts and reduced engine strain
- Stylish TFT console and smartphone features
- Light, nimble handling for city use
- Comfortable upright ergonomics
Cons
- No noticeable increase in outright power
- Single-channel ABS only
- The hybrid system is mild, not a full electric assist
- Performance is more suited to relaxed commuting than spirited riding
Who Should Buy It FZ-S Fi Hybrid?
If your priority is fuel efficiency, daily comfort, and modern features, the Yamaha FZ-S Fi Hybrid makes perfect sense. It’s ideal for city riders who want reliable performance with lower fuel costs. However, if you’re looking for sporty performance in the 150cc segment, alternatives like the TVS Apache RTR 160 4V or Bajaj Pulsar NS160 may suit you better.
Test Ride Checklist
- Measure your mileage during city traffic and highway stretches.
- Check how the Start-Stop System feels at traffic signals.
- Test the hybrid assist during low-speed acceleration.
- Explore the TFT features and Y-Connect app pairing.
- Evaluate braking feel and stopping distance.
Final Verdict
The Yamaha FZ-S Fi Hybrid is a smart upgrade for urban riders who value fuel economy, tech features, and refinement over raw performance. While its mild-hybrid system may not thrill speed enthusiasts, it offers practical benefits for everyday commuting in crowded cities.
Disclaimer
This blog is for informational purposes only. Specifications, features, and prices are subject to change by location and time. Always confirm details with an authorized Yamaha dealer. Riding performance and mileage may vary depending on road conditions, maintenance, and riding style.