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Yamaha R15S vs Yezdi Roadster vs Ampere Primus




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  • Primus Standard

  • R15S Standard

  • Roadster Dark Smoke Grey - Inferno Red - Glacial White

Power & Performance
Fuel Type Electric Petrol Petrol
Max Power 4,000 W 18.3 bhp @ 10,000 rpm 29.29 bhp @ 7300 rpm
Max Torque -- 14.1 Nm @ 8,500 rpm 29 Nm @ 6500 rpm
Emission Standard -- BS6 BS6
Cylinders -- 1 1
Bore-- 58 mm 81 mm
Valves Per Cylinder -- 4 4
Stroke -- 58.7 mm 65 mm
Displacement(cc) -- 155 334
Spark Plugs -- 1 Per Cylinder 1 Per Cylinder
Ignition -- CDI Digital
Compression Ratio -- 11.6 : 1 11:01
Cooling System -- Liquid Cooled Liquid Cooled
Transmission Automatic 6 Speed Manual 6 Speed Manual
Transmission Type -- Chain Drive Chain Drive
Gear Shifting Pattern -- 1 Down 5 Up 1 Down 5 Up
Clutch -- Wet Multiplate Wet Multidisc
Fuel Delivery System -- Fuel Injection Fuel Injection
Fuel Tank Capacity -- 11 litres 12.5 litres
Reserve Fuel Capacity -- 2.2 litres 2.5 litres
Riding Range 107 Km 495 Km 362.5 Km
Mileage Owner Reported -- 45 kmpl 29 kmpl
Top Speed 77 Kmph 136 Kmph 140 Kmph
Company Claimed Mileage -- -- --
Wheels & Suspension +
Braking System CBS Dual Channel ABS Dual Channel ABS
Front Brake Type Drum Disc Disc
Front Brake Size -- 282 mm 320 mm
Rear Brake Type Drum Disc Disc
Rear Brake Size -- 220 mm 240 mm
Calliper Type No Dual Piston Floating Calliper
Wheel Type Alloy Alloy Alloy
Front Wheel Size 12 inch 17 inch 18 inch
Rear Wheel Size 12 inch 17 inch 17 inch
Front Tyre Size -- 100/80 - 17 100/90 18” Tubeless
Rear Tyre Size -- 140/70 - R17 130/80 17” Tubeless
Tyre Type Tubeless Tubeless Tubeless
Radial Tyres No Yes No
Front Tyre Pressure (Rider) -- 29 psi 28 psi
Rear Tyre Pressure (Rider) -- 33 psi 30 psi
Front Tyre Pressure (Rider & Pillion) -- 29 psi 28 psi
Rear Tyre Pressure (Rider & Pillion) -- 33 psi 32 psi
Front Suspension Telescopic Telescopic upside Down Fork (USD Fork) Telescopic Forks
Rear Suspension Dual Shocker Linked-Type Monocross Suspension Twin shock absorbers with gas canister
Dimensions +
Kerb Weight 130 kg 142 kg 184 kg
Overall Length 1,912 mm 1,990 mm --
Overall Width 705 mm 725 mm --
Overall Height 1,133 mm 1,135 mm --
Wheelbase 1,400 mm 1,325 mm 1440 mm
Ground Clearance 150 mm 170 mm
Seat Height -- 815 mm 790 mm
Chassis Type Underbone Deltabox Double Cradle
Features +
Odometer Digital Digital Digital
DRLs (Daytime running lights) Yes Yes Yes
Mobile App Connectivity Yes Yes No
GPS & Navigation Yes No No
USB charging port Yes Optional No
Front storage box Yes No No
Under seat storage 22 ltr No No
AHO (Automatic Headlight On) -- Yes Yes
Speedometer Digital Digital Digital
Fuel Guage -- Yes Yes
Tachometer No Digital Digital
Stand Alarm Yes Yes Yes
No. of Tripmeters 1 2 2
Tripmeter Type Digital Digital Digital
Low Fuel Indicator -- Yes Yes
Low Oil Indicator -- Yes Yes
Low Battery Indicator Yes No Yes
Pillion Seat Yes Yes Yes
Start Type Electric Start Electric Start Electric Start
Shift Light No Yes Yes
Clock Yes Yes Yes
Electric System -- -- --
Battery -- 12V, 4.0Ah MF Battery
Headlight Type LED LED LED Head Lamp
Brake/Tail Light Halogen Bulb LED LED Tail lamp
Turn Signal Halogen Bulb LED Yes
Pass Light Yes Yes Yes
Additional Features Drive Mode LCD Instrument Cluster Fuel Warning Indicator
Manufacturer Warranty 3 Year 2 Year
Battery Charging Time 5 Hrs -- --
Rated Power 3400 W -- --
Fast Charging Time Optional -- --
Carrying Capacity 150 Kg -- --
Battery Capacity 3 kWh -- --
Battery Type Lithium-ion -- --
Motor Type PMS Motor -- --
Charger Output 51.2V, 15A -- --
Regenerative Breaking No -- --
Reverse Mode Yes -- --
Touch Screen Display No -- --
Central Locking System No -- --
Artificial Sound No -- --
Parking Assist No -- --
Hill Assist No -- --
Anti Theft System No -- --
Geo Fencing No -- --
Start Stop Button Yes -- --
Rating +
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Colors +
Colors
Havelock Blue
Himalayan White
Royal Orange
Buck Black
Matte Black
Racing Blue
Chrome Gallant Grey
Chrome Sin Silver
Crimson Dual Tone
Glacial White
Hunter Green
Inferno Red
Smoke Grey
Steel Blue
Rush Hour Red DT
Shadow Grey
Lunar White DT
Forest Green DT

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