Bajaj CNG Bike vs Yamaha R15 V4
Prices ex-showroom Delhi, checked 2026-09. On-road and running costs estimated for Delhi.
Bajaj CNG Bike and Yamaha R15 V4 are both sports bikes and turn up together on most shortlists. The R15 V4 costs ₹71,455 more than the CNG Bike, so the question is whether what it adds is worth roughly 69% extra.
The R15 V4 takes 4 of the 7 categories we score, so this is close and comes down to what you weight. Our overall ratings are 6.5/10 for the CNG Bike and 7.5/10 for the R15 V4.
Category by category
Price
CNG Bike
The CNG Bike starts ₹71,455 lower (₹1,04,237 against ₹1,75,692), about ₹2,260 a month less on a standard loan.
Running cost
CNG Bike
CNG Bike claims 91 kmpl against 46 kmpl. That is roughly ₹9,643 a year in fuel at 30 km a day.
Performance
R15 V4
R15 V4 has the better power-to-weight ratio: 128 against 62 bhp per tonne. It will feel quicker with a pillion and on overtakes.
Safety kit
R15 V4
R15 V4 adds dual-channel abs, front disc brake and rear disc brake and more that the CNG Bike does not have on any variant.
Features
R15 V4
R15 V4 gets usd front forks, slipper clutch, projector headlamp and bluetooth connectivity and 2 more items.
City manners
R15 V4
R15 V4 is 8 kg lighter and lower in the seat (815 mm), which you feel in traffic and when parking.
Warranty
CNG Bike
CNG Bike comes with 5 years of standard warranty against 2 on the R15 V4.
Which one should you buy?
Buy the CNG Bike if
- you want the lower purchase price and EMI
- mileage matters more to you than outright performance
- a longer standard warranty gives you peace of mind
- you live where Bajaj's bigger service network matters
Buy the R15 V4 if
- you ride two-up or on highways and want the stronger engine
- dual-channel ABS is non-negotiable for you
- you are a new rider or shorter and want the lighter bike
- your priority is weekend track days
What each really costs
Base variants, Delhi, 30 km a day. Servicing and insurance are class-typical estimates.
| Cost | CNG Bike | R15 V4 |
|---|---|---|
| Ex-showroom | ₹1,04,237 | ₹1,75,692 |
| On-road, Delhi | ₹1,19,400 | ₹2,01,400 |
| Fuel, 5 years | ₹49,295 | ₹97,510 |
| Servicing, 5 years | ₹30,000 | ₹30,000 |
| Insurance renewals | ₹5,732 | ₹9,668 |
| Five-year total | ₹2,04,427 | ₹3,38,578 |
Full specification comparison
Better figure in each row is shown in green.
| Spec | BajajCNG Bike | YamahaR15 V4 |
|---|---|---|
| Price | ||
| Starting ex-showroom | ₹1,04,237 | ₹1,75,692 |
| Rough EMI / month | ₹3,310 | ₹5,570 |
| Engine | ||
| Engine | 125 cc | 155 cc |
| Engine type | 1 Cylinder, Air Cooled, 2 Valves | 1 Cylinder, Liquid Cooled, 4 Valves |
| Power | 9.3 bhp | 18.1 bhp |
| Torque | 9.7 Nm | 14.2 Nm |
| Claimed mileage | 91 kmpl | 46 kmpl |
| Cooling | Air-cooled | Liquid-cooled |
| Transmission | 5 Speed | 6 Speed |
| Electric | ||
| Top speed | 93 km/h | 140 km/h |
| Dimensions | ||
| Kerb weight | 149 kg | 141 kg |
| Fuel tank | — | 11 L |
| Seat height | 825 mm | 815 mm |
| Ground clearance | 170 mm | 170 mm |
| Wheelbase | 1340 mm | 1325 mm |
| Length | — | 1990 mm |
| Width | — | 725 mm |
| Height | — | 1135 mm |
| Brakes & suspension | ||
| Front brake | Drum, 130 mm | Disc, 282 mm, 2 piston caliper |
| Rear brake | Drum, 130 mm | Disc, 220 mm, 1 piston caliper |
| ABS / CBS | CBS | Dual Channel ABS |
| Front suspension | Telescopic Fork | Upside Down Front Forks |
| Rear suspension | Monoshock Absorber | Linked-Type Monocross Suspension |
| Tyres | ||
| Front tyre | 90/80-17 | 100/80-17 |
| Rear tyre | 120/70-16 | 140/70-R17 |
CNG Bike vs R15 V4: questions people ask
- Which is cheaper, the CNG Bike or the R15 V4?
- The CNG Bike is cheaper by ₹71,455 at the base variant (₹1,04,237 against ₹1,75,692 ex-showroom Delhi).
- Which gives better mileage, the CNG Bike or the R15 V4?
- The CNG Bike claims 91 kmpl against 46 kmpl. Real-world figures for both will be lower.
- What is the on-road price difference between the CNG Bike and R15 V4 in Delhi?
- About ₹82,000: roughly ₹1,19,400 for the CNG Bike and ₹2,01,400 for the R15 V4, base variants, including road tax, registration and insurance.
- Which costs less to own over five years?
- Our estimate for five years at 30 km a day in Delhi is ₹2,04,427 for the CNG Bike and ₹3,38,578 for the R15 V4, including purchase, fuel, servicing and insurance renewals. The CNG Bike comes out ₹1,34,151 ahead.
