R15 vs Extreme: Which to Choose?

Last Updated on: 16 Oct 2026
The Yamaha R15S specification offers insight into the bike’s engine performance and mechanical setup. Key R15S specifications include engine capacity, braking system, suspension components and important performance figures.
Our Rating Yet to be Reviewed | Body Type Bike |
Engine 155 cc | Fuel Type Petrol |
Transmission Manual |
Fuel Type/ Propulsion | Petrol |
Engine Displacement | 155 cc |
Valvetrain | 4 Valves/Cyl |
Fueling | |
Cooling | Liquid Cooled |
Engine Type | 1 cylinder |
Aspiration | |
Max Engine Power | 18.1 bhp @ 10000 rpm |
Max Engine Torque | 14.2 Nm @ 7500 rpm |
Bore | 58 mm |
Stroke | 58.7 mm |
Spark Plugs | 1 Per Cylinder |
Number of Gears | 6 |
Slipper clutch | Yes |
Reverse gear | |
Transmission Type | Manual |
Gearbox Type | Manual |
Clutch | Assist And Slipper Clutch |
Fuel Tank Size | 11 L |
Official Fuel Economy | None kmpl |
Claimed Charging Time | |
Reserve Fuel Capacity | 2.2 L |
Top Speed | 136 kph |
User Reported Mileage | 45.91 kmpl |
Chassis name | Deltabox |
Chassis type | Deltabox |
Front Suspension Type | Telescopic Fork |
Rear Suspension Type | Linked-Type Monocross Suspension |
Rear Suspension Adjustability | Yes |
Electronic suspension | |
Front Brakes | Disc |
Rear Brakes | Disc |
Wheel Type | Alloy |
Wheel Construction | Alloy |
Tyre type | Tubeless |
Front Tyre Size | 100/80 - 17 |
Rear Tyre Size | 140/70 - R17 |
Radial tyres | |
Calliper Type | Front - 2 Piston, Rear - 1 Piston |
Front Wheel Size | 17 inch |
Rear Wheel Size | 17 inch |
Front Brake Type | Disc |
Front Brake Size | 282 mm |
Rear Brake Type | Disc |
Rear Brake Size | 220 mm |
Length | 1990 mm |
Width | 725 mm |
Height | 1135 mm |
Wheelbase | 1325 mm |
Seat height | 815 mm |
Ground Clearance | 170 mm |
Kerb Weight | 142 kg |
| Combined Braking System | |
| Anti-Lock Brakes (ABS) | Dual channel |
| Cornering ABS | |
| Hazard lights | |
| Side-stand indicator | |
| Side-stand engine cut-off |
| Pass-light switch | |
| Turn Signal | |
| Pillion Grabrail | |
| Pillion Footrest | |
| Pillion Backrest | |
| Odometer |
| TFT colour Instrument cluster | |
| Instrument console | Digital |
| Low Fuel Level Warning | |
| Touchscreen | |
| Gear Indicator | |
| Tachometer |
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