Bajaj CNG Bike vs KTM 250 Duke
Prices ex-showroom Delhi, checked 2026-09. On-road and running costs estimated for Delhi.
Bajaj CNG Bike and KTM 250 Duke are both sports bikes and turn up together on most shortlists. The 250 Duke costs ₹1,22,040 more than the CNG Bike, so the question is whether what it adds is worth roughly 117% extra.
The CNG Bike 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 7/10 for the 250 Duke.
Category by category
Price
CNG Bike
The CNG Bike starts ₹1,22,040 lower (₹1,04,237 against ₹2,26,277), about ₹3,870 a month less on a standard loan.
Running cost
CNG Bike
CNG Bike claims 91 kmpl against 31 kmpl. That is roughly ₹19,234 a year in fuel at 30 km a day.
Performance
250 Duke
250 Duke has the better power-to-weight ratio: 188 against 62 bhp per tonne. It will feel quicker with a pillion and on overtakes.
Safety kit
250 Duke
250 Duke adds dual-channel abs, front disc brake and rear disc brake that the CNG Bike does not have on any variant.
Features
250 Duke
250 Duke gets usd front forks, slipper clutch, colour tft console and bluetooth connectivity and 3 more items.
City manners
CNG Bike
CNG Bike is 13.800000000000011 kg lighter and taller in the seat (825 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 250 Duke.
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
- you are a new rider or shorter and want the lighter bike
- a longer standard warranty gives you peace of mind
Buy the 250 Duke if
- you ride two-up or on highways and want the stronger engine
- dual-channel ABS is non-negotiable for you
- your priority is first big bike
- your priority is city and weekend rides
What each really costs
Base variants, Delhi, 30 km a day. Servicing and insurance are class-typical estimates.
| Cost | CNG Bike | 250 Duke |
|---|---|---|
| Ex-showroom | ₹1,04,237 | ₹2,26,277 |
| On-road, Delhi | ₹1,19,400 | ₹2,56,900 |
| Fuel, 5 years | ₹49,295 | ₹1,45,465 |
| Servicing, 5 years | ₹30,000 | ₹30,000 |
| Insurance renewals | ₹5,732 | ₹12,332 |
| Five-year total | ₹2,04,427 | ₹4,44,697 |
Full specification comparison
Better figure in each row is shown in green.
| Spec | BajajCNG Bike | KTM250 Duke |
|---|---|---|
| Price | ||
| Starting ex-showroom | ₹1,04,237 | ₹2,26,277 |
| Rough EMI / month | ₹3,310 | ₹7,180 |
| Engine | ||
| Engine | 125 cc | 249.1 cc |
| Engine type | 1 Cylinder, Air Cooled, 2 Valves | 1 Cylinder, Liquid Cooled, 4 Valves |
| Power | 9.3 bhp | 30.6 bhp |
| Torque | 9.7 Nm | 25 Nm |
| Claimed mileage | 91 kmpl | 31 kmpl |
| Cooling | Air-cooled | Liquid-cooled |
| Transmission | 5 Speed | 6 Speed |
| Electric | ||
| Top speed | 93 km/h | 148 km/h |
| Dimensions | ||
| Kerb weight | 149 kg | 162.8 kg |
| Fuel tank | — | 15 L |
| Seat height | 825 mm | 800 mm |
| Ground clearance | 170 mm | 176 mm |
| Wheelbase | 1340 mm | 1370 mm |
| Brakes & suspension | ||
| Front brake | Drum, 130 mm | Disc, 320 mm, 4 piston caliper |
| Rear brake | Drum, 130 mm | Disc, 240 mm, 2 piston caliper |
| ABS / CBS | CBS | Supermoto ABS |
| Front suspension | Telescopic Fork | WP APEX USD forks, 43mm diameter |
| Rear suspension | Monoshock Absorber | WP APEX Monoshock, 10-step preload adjustable |
| Tyres | ||
| Front tyre | 90/80-17 | 110/70-R17 |
| Rear tyre | 120/70-16 | 150/60-R17 |
CNG Bike vs 250 Duke: questions people ask
- Which is cheaper, the CNG Bike or the 250 Duke?
- The CNG Bike is cheaper by ₹1,22,040 at the base variant (₹1,04,237 against ₹2,26,277 ex-showroom Delhi).
- Which gives better mileage, the CNG Bike or the 250 Duke?
- The CNG Bike claims 91 kmpl against 31 kmpl. Real-world figures for both will be lower.
- What is the on-road price difference between the CNG Bike and 250 Duke in Delhi?
- About ₹1,37,500: roughly ₹1,19,400 for the CNG Bike and ₹2,56,900 for the 250 Duke, 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 ₹4,44,697 for the 250 Duke, including purchase, fuel, servicing and insurance renewals. The CNG Bike comes out ₹2,40,270 ahead.
