KTM 390 Duke vs Zontes GK350
Prices ex-showroom Delhi, checked 2026-09. On-road and running costs estimated for Delhi.
KTM 390 Duke and Zontes GK350 are both sports bikes and turn up together on most shortlists. The 390 Duke undercuts the GK350 by ₹38,103, a gap big enough to notice on the EMI but not to decide the argument on its own.
The 390 Duke takes 6 of the 6 categories we score. Our overall ratings are 8/10 for the 390 Duke and 6.5/10 for the GK350.
Category by category
Price
390 Duke
The 390 Duke starts ₹38,103 lower (₹2,83,913 against ₹3,22,016), about ₹1,210 a month less on a standard loan.
Running cost
390 Duke
390 Duke claims 28 kmpl against 26.7 kmpl. That is roughly ₹967 a year in fuel at 30 km a day.
Performance
390 Duke
390 Duke has the better power-to-weight ratio: 243 against 203 bhp per tonne. It will feel quicker with a pillion and on overtakes.
Safety kit
390 Duke
390 Duke adds traction control that the GK350 does not have on any variant.
Features
390 Duke
390 Duke gets alloy wheels, usd front forks and slipper clutch.
City manners
390 Duke
390 Duke is 19.69999999999999 kg lighter and taller in the seat (800 mm), which you feel in traffic and when parking.
Which one should you buy?
Buy the 390 Duke if
- you want the lower purchase price and EMI
- mileage matters more to you than outright performance
- you ride two-up or on highways and want the stronger engine
- you are a new rider or shorter and want the lighter bike
Buy the GK350 if
- your priority is performance-focused naked riders
- your priority is riders comparing against the mt 03 or rc 390
What each really costs
Base variants, Delhi, 30 km a day. Servicing and insurance are class-typical estimates.
| Cost | 390 Duke | GK350 |
|---|---|---|
| Ex-showroom | ₹2,83,913 | ₹3,22,016 |
| On-road, Delhi | ₹3,20,646 | ₹3,63,847 |
| Fuel, 5 years | ₹1,61,330 | ₹1,66,165 |
| Servicing, 5 years | ₹30,000 | ₹30,000 |
| Insurance renewals | ₹15,392 | ₹17,464 |
| Five-year total | ₹5,27,368 | ₹5,77,476 |
Full specification comparison
Better figure in each row is shown in green.
| Spec | KTM390 Duke | ZontesGK350 |
|---|---|---|
| Price | ||
| Starting ex-showroom | ₹2,83,913 | ₹3,22,016 |
| Rough EMI / month | ₹9,000 | ₹10,210 |
| Engine | ||
| Engine | 349.3 cc | 348 cc |
| Engine type | 1 Cylinder, Liquid Cooled, 4 Valves | 1 Cylinder, Liquid Cooled, 1 Valves |
| Power | 40.9 bhp | 38.2 bhp |
| Torque | 33.5 Nm | 32.8 Nm |
| Claimed mileage | 28 kmpl | 26.7 kmpl |
| Cooling | Liquid-cooled | Liquid-cooled |
| Transmission | 6 Speed | 6 Speed |
| Electric | ||
| Top speed | 160 km/h | 140 km/h |
| Dimensions | ||
| Kerb weight | 168.3 kg | 188 kg |
| Fuel tank | 15 L | 17 L |
| Seat height | 800 mm | 795 mm |
| Ground clearance | 183 mm | 151 mm |
| Wheelbase | 1354 mm | 1380 mm |
| Length | — | 2070 mm |
| Width | — | 845 mm |
| Height | — | 1120 mm |
| Brakes & suspension | ||
| Front brake | Disc, 320 mm, 4 piston caliper | Disc, 320 mm, 2 piston caliper |
| Rear brake | Disc, 240 mm, 2 piston caliper | Disc, 265 mm, 1 piston caliper |
| ABS / CBS | Supermoto ABS | Dual Channel ABS |
| Front suspension | Adj (5 step Damping) - Inverted telescopic fork, 43mm dia (open cartridge) | Telescopic, 43mm Dia |
| Rear suspension | Adj (5 step Damping ) - Mono shox - 10 steps (prelaod Adj) | Monoshock |
| Tyres | ||
| Front tyre | 110/70-17 | 120/70-17 |
| Rear tyre | 150/60-17 | 160/60-17 |
390 Duke vs GK350: questions people ask
- Which is cheaper, the 390 Duke or the GK350?
- The 390 Duke is cheaper by ₹38,103 at the base variant (₹2,83,913 against ₹3,22,016 ex-showroom Delhi).
- Which gives better mileage, the 390 Duke or the GK350?
- The 390 Duke claims 28 kmpl against 26.7 kmpl. Real-world figures for both will be lower.
- What is the on-road price difference between the 390 Duke and GK350 in Delhi?
- About ₹43,201: roughly ₹3,20,646 for the 390 Duke and ₹3,63,847 for the GK350, 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 ₹5,27,368 for the 390 Duke and ₹5,77,476 for the GK350, including purchase, fuel, servicing and insurance renewals. The 390 Duke comes out ₹50,108 ahead.
