Engine & performance
- Displacement
- 145 cc
- Configuration
- Air cooled, 2 stroke, single cylinder
- Starting
- Kick
- Maximum power
- 7.6 PS @ 5500 rpm
- Maximum torque
- 10.8 Nm @ 3500 rpm
- Transmission
- Manual
- Gears
- 4-speed
- Final drive
- Direct

The Bajaj Chetak is the discontinued 145.45 cc air-cooled two-stroke scooter Bajaj made from 1972, with a 4-speed hand-shifted gearbox and kick start. Bikesmedia lists 7.6 PS @ 5500 rpm maximum power, 10.8 Nm @ 3500 rpm maximum torque, 3.50 x 10 tyres front and rear, a 6 litre fuel tank and a 103 kg kerb weight. This is the petrol Chetak, not the electric scooter Bajaj sells under the same name.
The Bajaj Chetak is a scooter from Bajaj Auto. It was launched in 1972 and has since been discontinued. Mechiee still services it at your doorstep. Scooters are made for easy city riding: automatic, step-through and usually with storage under the seat. With a 145 cc engine it sits in the larger, 150 cc-plus scooter class.
Power comes from a 145 cc single-cylinder air-cooled engine that makes 7.6 PS at 5,500 rpm and 10.8 Nm of torque at 3,500 rpm. Peak torque arrives low in the rev range, at 3,500 rpm, which makes it relaxed to ride in traffic. Divide power by kerb weight and it has about 74 PS per tonne; by that measure, there is enough go for confident city riding and relaxed highway cruising. It has kick start only.
It has a 4-speed manual gearbox.
At the front, the suspension is variable rate coil spring & double acting shock absorber. At the rear, it is variable rate coil spring & double acting shock absorber. It rides on 10-inch wheels, 3.50 x 10 - 4PR at both ends.
It weighs 103 kg ready to ride, light enough to push around and park easily. Ground clearance is 135 mm — low, so take speed breakers and steep ramps slowly. It is 1,770 mm long, with 1,230 mm between the axles. It carries 6.0 L of fuel.
For the Bajaj Chetak, Mechiee offers a fixed ₹899 doorstep service.
It is best suited to city errands and riders who would rather not shift gears.
These figures come from a single publication (Bikesmedia) and have not been confirmed against the manufacturer. The model is discontinued. Exact values can differ slightly by variant and model year.
Sources: Bikesmedia
Specifications last checked:
Mechiee doorstep service
₹899
Mechiee's fixed doorstep service price for this model.
Follow the schedule in the owner's manual for your exact variant and year. A regular service is the cheapest way to catch small problems before they become expensive ones.
Engine oil is the single most important consumable to keep fresh. Top up between services if the level drops, and change it on schedule.
Check pad or shoe wear, lever and pedal free play, and braking feel at every service.
Automatic scooters transmit power through a belt and variator. Listen for slipping or judder, and have them inspected as part of regular servicing.
A clogged air filter or worn spark plug shows up as hard starting, weak throttle response and poorer fuel economy. Both are checked at a regular service and replaced when worn.
This bike runs 3.50 x 10 - 4PR tyres. Check pressure, tread depth and sidewalls, and replace tyres that are worn or cracked.
Weak starting, dim lights or a flickering console are early signs the battery or charging system needs a look.
Book a verified Mechiee mechanic, track them live, and keep a permanent record of every job on your bike.
Doorstep service₹899
Mechiee mechanics service the Bajaj Chetak at your doorstep across 119 areas of Pune, with bigger jobs handled at a Mechiee Service Center. Pick your area to see local details.
Manufacturer figures for each bike. A dash means the value is not published in our sources.
| Specification | Bajaj Chetak | Bajaj Kristal | Bajaj Discover 150 | Bajaj Discover 135 |
|---|---|---|---|---|
| Engine | 145 cc | 125 cc | 144.8 cc | 134.5 cc |
| Max power | 7.6 PS @ 5500 rpm | 7.4 PS @ 7500 rpm | 12.8 bhp @ 7500 rpm | 13.10 PS @8500 rpm |
| Max torque | 10.8 Nm @ 3500 rpm | 7.7 Nm @ 5500 rpm | 12.75 Nm @ 5500 rpm | 11.88 Nm @ 6500 rpm |
| Gears | 4-speed | — | 5-speed | — |
| Kerb weight | 103 kg | 99 kg | 121 kg | 133 kg |
| Fuel tank | 6.0 Litres | 4.5 Litres | 10 L | 10 L |
| Front brake | — | Drum, 110 mm | Disc | Disc, 240 mm |
| Rear brake | — | Drum, 110 mm | Drum | Drum, 130 mm |
The Bajaj Chetak has a 145 cc engine, described as air cooled, 2 stroke, single cylinder.
The Bajaj Chetak is rated at 7.6 PS @ 5500 rpm maximum power and 10.8 Nm @ 3500 rpm maximum torque.
The Bajaj Chetak runs 3.50 x 10 - 4PR at the front and 3.50 x 10 - 4PR at the rear.
Follow the service schedule in the owner's manual for your exact variant and year. Between services, keep an eye on engine oil, chain, tyres and battery.
No. The Bajaj Chetak has been discontinued. Mechiee still lists doorstep servicing for it.
The Bajaj Chetak was launched in 1972.
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