Sport · 2025

YZF R9

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MotoLibrary Score

61 /100 Sporty

Power

117 HP

Engine

890 ccm

Technical Overview

2025 Yamaha YZF R9 Technical Analysis & Specification Breakdown

Engineered by Yamaha for the sport motorcycle segment, the 2025 Yamaha YZF R9 relies on a 890 cc engine powerplant. Internal engine geometry specifies a bore and stroke of 78.0mm x 62.1mm with a 11.5:1 compression ratio.

On the scales, the YZF R9 measures 430 kg (948 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 32 mm (1.3 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 55 mm (2.2 in) wheelbase engineered for quick, flickable steering geometry. The 3.7-liter (1 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Standover Height

32 mm (1.3 in)

Engine

Displacement 890 cc

Engine Details 890cc liquid-cooled, DOHC, inline 3-cylinder; 4 valves per cylinder

Power 87.5kW

Compression 11.5:1

Bore x Stroke 78.0mm x 62.1mm

Ignition TCI: Transistor Controlled Ignition

Transmission

Gearbox 6-speed; multiplate wet clutch; with Assist & Slipper clutch

Final Drive Chain

Chassis

Trail 3.7 in

Wheelbase 55.9 in

Ground Clearance 5.5 in

Dimensions & Weight

Weight incl. 430 lb

Seat Height 32.7 in

Fuel Capacity 3.7 gal

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power

Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.

Seat Height

Check the seat height against your inseam and riding posture before choosing a motorcycle.

Fuel Capacity

Fuel capacity helps estimate touring range and how often you may need to stop.

Transmission

Transmission and final drive affect maintenance, smoothness and everyday usability.

Rider Profile

Who Is This Bike For?

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Advanced

High performance — experienced riders only.

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Best For

Sport & Track

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