Yamaha YZF R15 vs Yamaha YZF R25 Comparison

Engine & Performance

Displacement	155.1 cc	250 cc
Maximum Power	19.04 hp	35.5 hp
Valves Per Cylinder	4	4
Compression Ratio	11.6:1	11.6:1
Clutch Type	Wet, Multi-Plate	Wet, Multi-Plate, Manual
Bore X Stroke	58 mm x 58.7 mm	60 mm x 44.1 mm
Exhaust Pipes	Single Exhaust	Single Exhaust
Cooling System	Liquid Cooled	Liquid Cooled
Maximum Torque	14.7 Nm	23.6 Nm
Top Speed	131 kmph	--
Valve Configuration	SOHC	DOHC
Drive Type	Chain Drive	Chain Drive
No. Of Strokes	4-Stroke	4-Stroke
Engine Type	4-Stroke, SOHC	Inline 2 Cylinder, 4-Stroke, 4-Valve, Liquid-Cooled DOHC
Lubrication System	Wet Sump	Wet Sump
No. Of Cylinder	1	2
Fuel Tank Size	11.0 L	14 L
RPM at Maximum Torque	8500 rpm	10000 rpm
RPM at Maximum Power	10000 rpm	12000 rpm

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Dimension

Category	Sport	Sport
Seat Height	815 mm	780 mm
Height	1135 mm	1135 mm
Wheel Base	1325 mm	1380 mm
Width	725 mm	720 mm
Length	1990 mm	2090 mm
Kerb Weight	137 kg	166 kg
Seating Capacity	2 Seats	2 Seats
Oil Tank Capacity	1.05 L	2.4 L
Ground Clearance	155 mm	160 mm

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Fuel & Ignition

Ignition System	TCI	TCI
Start Option	Electric	Electric
Fuel Supply System	Fuel Injection	--
Fuel Type	Petrol	Petrol

Gear & Transmission

Transmission Type	Manual	Manual
Gear Box	6-Speed	6-Speed

Electrical

Power Pack	No	--
Pack Capacity	No	--
Pack Voltage	No	--
Motor Type	No	--
Charger Type	No	--
Input	No	--
Range City	No	--
Range Highway	No	--
Battery Charge Time	No	--
Pack Life	No	--

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Wheels & Tyres

Rear Tyre	140/70 R14	140/70 R17
Front Wheel Size	R17	R17
Tyre Type	Radial, Tubeless	Radial, Tubeless
Front Tyre	100/80 R17	110/70 R17
Rear Wheel Size	R14	R17

Chassis & Suspension

Front Suspension	Telescopic Fork	Telescopic Fork
Rear Suspension	Mono Shock	Swing Arm

Safety & Security

ABS	No	No
Pass Switch	Yes	Yes
Riding Modes	Sport,Road Sport,Road	Sport, Road Sport, Road
Wheel Lock Front/back	No	No
Engine Check Warning	Yes	Yes
Back Rest	No	No
Stability Control	No	No
Traction Control	No	No
Launch Control	No	No
Shutter Lock	No	No
Leg Guards	No	No
Side Reflectors	Optional Optional	--
Central Locking	Optional Optional	No
Anti-Theft Alarm	--	No

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Console

Odometer	Digital Digital	Digital Digital
Fuel Gauge	Digital Digital	Digital Digital
Navigator	No	No
Display Screen	Yes	Yes
Tachometer	Digital Digital	Yes
Speedometer	Digital Digital	Digital Digital
Tripmeter	--	Yes
Side Stand Indicator	--	No

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Electrical

Head Lamp	LED LED	LED LED
Indicator Light	Yes	Yes
Adjustable Headlights	Yes	Yes
Accessory Outlet	No	No
Battery Voltage	12 V 12 V	12 V 12 V
Tail Lamp	LED LED	LED LED

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Chassis & Suspension

Electronic Suspension Adjustment	No	--
Body Frame Material	Steel Steel	--
Side Wings	Yes	Yes
Body Frame Type	Delta Box Delta Box	Diamond Diamond
Seat Type	Dual Stepped Dual Stepped	Dual Stepped Dual Stepped
Chrome Garnish	--	No

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Differentiating Features

Cruise Control	No	No
Height Adjustable Seats	No	No

Brake

Front Brake	Disc Disc	Disc Disc
Rear Brake	Disc Disc	Disc Disc