Yamaha YZF-R6 2015 vs. Aprilia RS 660 2025

Technical Specifications Yamaha YZF-R6 2015 compared to Aprilia RS 660 2025

Yamaha YZF-R6 2015

Aprilia RS 660 2025

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Differences

Yamaha YZF-R6 2015

Aprilia RS 660 2025

Engine and Drive Train

Bore	Bore	67 mm	Bore	81 mm
Stroke	Stroke	42.5 mm	Stroke	63.93 mm
Engine power	Engine power	124 HP	Engine power	105 HP
Rpm at Max. Power	Rpm at Max. Power	14,500 rpm	Rpm at Max. Power	10,500 rpm
Torque	Torque	65.7 Nm	Torque	67 Nm
Rpm at Torque	Rpm at Torque	10,500 rpm	Rpm at Torque	8,500 rpm
Compression Ratio	Compression Ratio	13	Compression Ratio	13.5
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath, Antihopping
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	6	Number of gears	6
Cylinders	Cylinders	4	Cylinders	2
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Valves per cylinder	Valves per cylinder	4	Valves per cylinder	4
Valves	Valves	DOHC	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	599 ccm	Displacement	659 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork

Chassis

Frame	Frame	Aluminium	Frame	Aluminium
Frame type	Frame type	Deltabox	Frame type	Load-bearing engine

Brakes Front

Type	Type	Double disk	Type	Double disk

Brakes Rear

Type	Type	Disc	Type	Disc

Dimensions and Weights

Front tyre width	Front tyre width	120 mm	Front tyre width	120 mm
Front tyre height	Front tyre height	70 %	Front tyre height	70 %
Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	17 inch
Rear tyre width	Rear tyre width	180 mm	Rear tyre width	180 mm
Rear tyre height	Rear tyre height	55 %	Rear tyre height	55 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	17 inch
Length	Length	2,040 mm	Length	1,995 mm
Width	Width	705 mm	Width	745 mm
Height	Height	1,095 mm	Height	1,150 mm
Wheelbase	Wheelbase	1,375 mm	Wheelbase	1,370 mm
Seat Height	Seat Height	850 mm	Seat Height	820 mm
Fuel Tank Capacity	Fuel Tank Capacity	17 l	Fuel Tank Capacity	15 l
License compliancy	License compliancy	A	License compliancy	A