Here’s an in-depth, point-by-point breakdown of the Yamaha R15 V4:
1. 🧩 Basics & Evolution
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Model lineage: Part of the YZF‑R15 line since 2008; the R15 V4 is the current fourth-gen update (2017–present) (bikewale.com).
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Styling: Inspired by Yamaha’s supersport bikes (R1, R7), with sharp MotoGP fairings, LED projector headlights, and a compact, aggressive tail setup .
2. 🏎 Engine & Performance
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Engine: 155 cc, liquid-cooled, SOHC, 4‑valve single-cylinder with VVA (Variable Valve Actuation) that switches cams around ~7,400 rpm for a broad torque curve (iym.ymslilabs.com).
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Output: ~18.1 bhp @ 10,000 rpm and ~14.2 Nm @ 7,500 rpm (bikewale.com).
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Transmission: 6-speed gearbox, assist and slipper clutch, and optional quick-shifter/up-shift on “M” variants (bikewale.com).
3. 🛠 Chassis & Handling
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Frame: Lightweight Delta-box steel chassis for sharp handling (bikes4sale.in).
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Suspension: USD forks up front and a linked-type mono-shock adjustable at rear (bikewale.com).
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Weight: Kerb weight around 141 kg, seat height 815 mm, ground clearance 170 mm (bikewale.com).
4. 💨 Braking & Tyres
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Brakes: 282 mm front disc with 2‑piston caliper; 220 mm rear disc with 1‑piston caliper; dual-channel ABS standard (autos.maxabout.com).
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Tyres: 17‑inch alloy wheels—100/80 front, 140/70 rear tubeless radials (bikewale.com).
5. 🧠 Electronics & Features
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Instrument cluster: Fully digital LCD with TFT-like display, gear position, shift light, fuel gauge, clock (mototechindia.com).
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Connectivity: Y‑Connect Bluetooth app, call/SMS alerts, last-parked reminder (bikewale.com).
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Riding Modes: Switchable Street and Track modes, plus traction control, and quick-shifter capability on M trims (bikewale.com).
6. ⛽ Fuel Economy & Range
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ARAI mileage: ~51.4 kmpl; real-world figures around 45 kmpl (bikewale.com).
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Fuel capacity: 11 L provides a practical riding range of ~500–565 km per tank (bikewale.com).
7. ⚙ Specs Overview 📊
| Spec | Value |
|---|---|
| Displacement | 155 cc |
| Power & Torque | 18.1 bhp / 14.2 Nm |
| Transmission | 6-speed + slipper clutch |
| Weight & Dimensions | 141 kg; 815 mm seat height |
| Fuel Tank | 11 L |
| Engine | LC4V SOHC fi + VVA |
(Refer to full specs from BikeWale) (bikewale.com, iym.ymslilabs.com)
8. 📈 Real-world Usage & Feedback
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Fuel economy: Many owners report ~45 kmpl in mixed riding — excellent for a sporty 155 cc bike (timesbull.com).
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Oil consumption: Some users report higher-than-normal oil use (~400 ml / 2000 km), occasionally accepted as typical by service centers (reddit.com).
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Comfort & ergonomics: Owners praise its agile handling, sure-footed highway performance, and surprisingly manageable riding posture .
9. 🎨 Variants & Pricing
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Variants: Standard (Metallic Red, Dark Knight, Racing Blue) and “M” editions (MotoGP, Carbon Fibre) with added trims and features like quick-shifter.
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Price: Standard ~₹1.85 lakh; “M” trims go up to ~₹2.12 lakh (ex-showroom, India) (bikewale.com).
10. ✅ Pros & Cons at a Glance
Pros
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Track-inspired looks
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Strong mid-range and top-end power
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Premium electronics & connectivity
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Great fuel efficiency
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Lightweight & agile handling
Cons
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Aggressive riding stance tiring on long rides
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Oil consumption concerns for some
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Premium pricing relative to competitors (reddit.com, otocapital.in).
🧭 Final Verdict
The Yamaha R15 V4 brings supersport styling and technology to the 150‑cc segment. It's agile, powerful, well-connected, and efficient—making it ideal for sporty city and occasional highway rides. Just be ready for its aggressive ergonomics and keep an eye on oil levels over time.
Here’s an even more comprehensive, point-by-point deep dive into the Yamaha R15 V4, based on expert reviews and real-world owner feedback:
---
## 🛠️ 1. **Lighting & Design Refinement**
* **Fully LED setup**: Class D bi-functional projector headlamp with distinctive LED DRLs mirrors premium R-series aesthetics. The rear taillight is LED too, though indicators remain conventional ([91wheels.com][1]).
* **Aerodynamics**: Redesigned fairing with smoother surfaces reduces drag and enhances high-speed stability ([financialexpress.com][2]).
* **Premium fit & finish**: V4 boasts improved build quality—plastics, switchgear, body panels feel noticeably more upscale ([financialexpress.com][2]).
---
## 🧭 2. **Chassis, Suspension & Handling**
* **USD forks**: Gold anodized upside-down front forks bring improved braking/stability feel and premium ride quality ([diubeachgames.com][3]).
* **Delta-box frame & mono-shock**: Retained for sharp handling and balanced ride dynamics, despite a firmer setup ideal for sporty riding ([mapsofindia.com][4]).
* **Clip-on handlebars**: Wider and lower, offering better cornering control—though macho posture may stress on long commutes ([mapsofindia.com][4]).
---
## ⚙️ 3. **Engine & Transmission**
* **155 cc VVA engine**, same core as V3 but slightly detuned (18.1 bhp, 14.2 Nm) to comply with emission norms ([financialexpress.com][2]).
* **Assist & slipper clutch + 6-speed gearbox**: Seamless shifting and better negativity drone during downshifts ([91wheels.com][1]).
* **Quick-shifter (R15 M variant)**: Enables clutchless up-shifts—great on tracks, less impactful in city riding according to some testers ([91wheels.com][1]).
---
## 🧠 4. **Electronics & Rider Assistance**
* **Dual-channel ABS + Traction Control (TCS)** on M trims: Segment-first safety additions ([diubeachgames.com][3]).
* **Instrument cluster**: Tall LCD display with gear indicator, shift lights, speed, RPM, trip meters, lap timer & more ([financialexpress.com][2]).
* **Y-Connect app**: Bluetooth pairing enables call/SMS/email alerts, fuel tracking, maintenance reminders, last parking location, throttle maps, and rider rankings ([iym.ymslilabs.com][5]).
---
## 🚦 5. **Performance & Feel**
* **High-revving thrill**: VVA delivers strong power across the rev range; engine feels smooth and eager past 7,000 rpm ([financialexpress.com][2]).
* **Low-end sluggishness**: Some reviewers note the engine needs revs to shine; city riding might feel underwhelming ([financialexpress.com][2]).
---
## 🧪 6. **Comfort & Ergonomics**
* **Sporty but stiff ride**: Firm suspension favors performance over comfort; typical for riders but jarring over potholes ([bikenmud.in][6]).
* **Ergonomics**: Aggressive riding posture is engaging for sporty rides, but long-distance comfort and pillion usability are limited .
* **Seat & parts quality**: Front/back seat styling is sporty; pillion seat quality sometimes criticized—owners may add rails .
---
## ⛽ 7. **Fuel Economy & Range**
* **Mileage**: Officially \~51 kmpl; real world ranges between 40–45 kmpl depending on riding style ([carandbike.com][7]).
* **Fuel tank**: 11 L capacity gives a practical 400–500 km per full tank.
---
## 🧯 8. **Known Owner Issues**
* **Oil consumption**: Reports of \~400 ml every 2,000 km—sometimes higher. Dealers say it's normal, though not universally accepted ([carandbike.com][7], [reddit.com][8]).
* **Vibrations**: Some owners note mid-RPM vibration (3,500–4,000 rpm) possibly due to engine mounts or fuel system quirks ([reddit.com][9]).
* **Battery drain**: Bluetooth module can drain battery when idle; many remove it to solve the issue ([reddit.com][10]).
* **Common brand issues**: Brake lever vibration and odd smells are occasional complaints but not widespread ([reddit.com][11]).
---
## ✅ Summary Highlights
**What’s excellent:**
* Supersport design and premium treatments (LEDs, USD forks, app integration)
* Strong high-rpm performance with VVA magic
* Advanced safety with ABS and traction control
* App-based smart features and customizable riding experience
**What to watch:**
* Firm ride and aggressive ergonomics may not suit everyone
* Some low-end jerkiness and occasional vibration
* Oil consumption concerns for long-haul riders
* Bluetooth feature may compromise battery life
---
### 🔍 Owner Tip:
> “Majority of the battery drain issue faced by MT V2/R15 V4 owners are Bluetooth related. … remove the Bluetooth device …” ([diubeachgames.com][3], [91wheels.com][1], [autern.com][12], [reddit.com][11], [carandbike.com][7], [reddit.com][10])
---
## 🧭 Final Word
The Yamaha R15 V4 is the most technologically advanced 155 cc supersport yet—with premium design, ride dynamics, smart electronics, and safety features packed in a lightweight, high-revving package. Ideal for spirited riders who prioritize performance, aesthetics, and tech. Just be prepared for occasional quirks and routine maintenance.
Want comparisons with rivals like KTM RC 200 or Honda CBR 150R? Or upgrade advice? Let me know!
[1]: https://www.91wheels.com/expert-review/yamaha-r15-v4-key-features-explained-heres-what-all-it-gets?utm_source=chatgpt.com "Yamaha R15 V4 Key Features Explained: Here’s What All It Gets"
[2]: https://www.financialexpress.com/auto/reviews/yamaha-r15-v4-review-tuck-and-roll/2471018/?utm_source=chatgpt.com "Yamaha R15 V4 Review: Tuck and roll! - Auto Reviews News | The Financial Express"
[3]: https://diubeachgames.com/yamaha-r15-v4-cutting-edge/?utm_source=chatgpt.com "Yamaha R15 V4, Cutting-Edge VVA Technology & Smart Y-Connect Integration - DIU Beach Games"
[4]: https://www.mapsofindia.com/my-india/reviews/review-all-new-yamaha-yzf-r15-v4?utm_source=chatgpt.com "Review: All-New Yamaha YZF-R15 V4 - Automobiles"
[5]: https://iym.ymslilabs.com/yamaha-r15v4.html?utm_source=chatgpt.com "Yamaha R15 V4 ❘ R15 v4 Price, Mileage, Specifications, Features, Images | Yamaha Motor India"
[6]: https://bikenmud.in/yamaha-r15-v4-a-complete-guide-on-ultimate-sportbike/?utm_source=chatgpt.com "Yamaha R15 V4: A Complete Guide to the Ultimate Sportbike | Venkatesh Raju"
[7]: https://www.carandbike.com/yamaha-bikes/yzf-r15-v40?utm_source=chatgpt.com "Yamaha YZF R15 V4.0 : Price, Images, Specs & Reviews - carandbike.com"
[8]: https://www.reddit.com/r/indianbikes/comments/1eah8o5?utm_source=chatgpt.com "Yamaha R15 V4 Rapid Engine Oil Consumption – Need Help"
[10]: https://www.reddit.com/r/indianbikes/comments/1924ukw?utm_source=chatgpt.com "My MT-15 v2 which is not even 1 year old has battery issues. If i dont drive it for 1 week the battery gets drained."
[11]: https://www.reddit.com/r/indianbikes/comments/xr7grr?utm_source=chatgpt.com "brake lever vibra
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