Yamaha YZF-R25: history, specs, pictures

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Yamaha YZF-R25
Manufacturer
Production 2015 - 2019
Class Road
Engine
twin, four-stroke
Bore / Stroke 60.0mm x 44.1mm
Horsepower 34.2 HP (25.5 KW) @ 12000RPM
Torque 17.41 ft/lbs (23.6 Nm) @ 10000RPM
Fuel System injection. efi
Ignition tci
Transmission Gear box: 6-speed

Final Drive: chain

Clutch: wet, multiple-disc coil spring
Suspension Front: telescopic forks
Rear: monocross
Brakes Front: single disc. hydraulic disc, dual piston floating
Rear: single disc. hydraulic disc, single piston
Front Tire 100/80-17
Rear Tire 130/70-17
Wheelbase 54.33 inches (1380 mm)
Length 82.28 inches (2090 mm)
Width 28.35 inches (720 mm)
Height 44.69 inches (1135 mm)
Seat Height 30.71 inches (780 mm)
Weight 167.0 kg (wet)
Oil Capacity 0.63 Gallon (2.40 Liters)
Recommended Oil Yamalube 10w-40
Fuel Capacity 3.7 Gallon (14.00 Liters)
Manuals Service Manual


The Yamaha YZF-R25 was a twin, four-stroke Road motorcycle produced by Yamaha between 2015 and 2019. Max torque was 17.41 ft/lbs (23.6 Nm) @ 10000 RPM. Claimed horsepower was 34.2 HP (25.5 KW) @ 12000 RPM.

Engine[edit | edit source]

The engine was a liquid cooled twin, four-stroke. A 60.0mm bore x 44.1mm stroke result in a displacement of just 250.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).

Drive[edit | edit source]

The bike has a 6-speed transmission. Power was moderated via the wet, multiple-disc coil spring.

Chassis[edit | edit source]

It came with a 100/80-17 front tire and a 130/70-17 rear tire. Stopping was achieved via single disc. hydraulic disc, dual piston floating in the front and a single disc. hydraulic disc, single piston in the rear. The front suspension was a telescopic forks while the rear was equipped with a monocross. The YZF-R25 was fitted with a 3.7 Gallon (14.00 Liters) fuel tank. The wheelbase was 54.33 inches (1380 mm) long.

In Media[edit | edit source]