CB650F / Overview

The DOHC 649cc four-cylinder engine powering the CB650F is completely new and engineered to deliver high torque and response through the low-to-mid rpm range, especially below 4,000rpm.

The development team, mostly in their mid-to-late 20s, decided early on that chasing peak power at redline was off the agenda. On a naked machine, strong acceleration from a standing start, low/mid-range torque and mid-gear roll-on throttle response were targeted as the essential elements.

Crisp pick-up above 6,000rpm and – for the sake of reduced running costs – economical cruising at highway speeds was also a focus. The engine has also been designed to look good, with no external plumbing obscuring its lines. Sitting relatively far forward in the chassis for optimal weight distribution, the engine is truly at the heart of the machine.

The CB650F’s steel twin-spar frame has a tuned rigidity balance along with cast pivot plates and aluminium swingarm. The rear shock works directly on the swingarm and is matched to a 41mm telescopic front fork; the wheels are a new six-spoke design. Twin 320mm wavy front discs and three-piston calipers deliver the stopping power with 2-channel ABS fitted an option.

Available as an option will be a 35kW output version for A2 licence holders, featuring ABS as standard.

Crisp, aggressive lines and angular silhouette give the CB650F real visual appeal while the low centre of gravity, slim feel, upright riding position and wide handlebars give excellent control. An HRC-inspired White, Red and Blue Tricolour paint option provides the finishing touch.

CB650F / Specification

Engine Type Liquid-cooled 4-stroke 16-valve DOHC inline-4
Engine Displacement 649cm3
No. of Valves per Cylinder
Compression Ratio 11.4:1
Max. Power Output 64kW/11,000min-1 (95/1/EC)
Max. Torque 63Nm/8,000min-1 (95/1/EC)
Fuel Consumption 21 km/liter (WMTC)
Oil Capacity 3.5 L
Ignition Computer-controlled digital transistorised with electronic advance
Ignition Timing 5°(BTDC) at  1250 r/min 82.5°(BTDC) at 11000 r/min
Rev Limit
Starter Electric
Carburation PGM-FI electronic fuel injection
Idle Speed 1,250min-1
Bore & Stroke 67 x 46mm
Battery Capacity 12V/8.6AH
ACG Output 343W
Spark Plug Type CR9EH-9(NGK)/U27FER9(DENSO)
Throttle Bore 32mm
Exhaust System
Clutch Wet, multiplate with coil springs
Final Drive #525 O-ring sealed chain
Primary Reduction 1.690(71/42)
Gear Ratios 1) 3.071 (43/14) 2) 2.235 (38/17) 3) 1.778 (32/18) 4) 1.520 (38/25) 5) 1.333 (36/27) 6) 1.214 (34/28)
Gearbox / Transmission Type 6-speed
Traction Control System N.A.
Frame Type Steel Diamond
Caster Angle 25.5°
Trail 101mm
Turning Radius
Dimensions and Weight
Kerb Weight 206kg * 208kg
Dry Weight
Engine Weight 60.8kg
Front / Rear Weight Distribution F: 105kg/ R: 101kg * F: 106kg/ R: 102kg
Maximum Carrying Capacity 188kg
Fuel Capacity 17.3litres
Length x Width x Height 2,110 x 775 x 1,120mm
Wheelbase 1,450mm
Seat Height 810mm
Ground Clearance 150mm
Swing Arm Length 605mm
Wheels, Suspension and Brakes
ABS system type 2-channel
Brakes Front 320 x 5.0mm dual hydraulic disc with dual-piston calipers and sintered metal pads
Brakes Rear 240 x 5mm hydraulic disc with single-piston caliper and resin mold pads
Wheels Front Hollow-section 6-spoke cast aluminium
Wheels Rear Hollow-section 6-spoke cast aluminium
Rim Size Front 17M/C x MT3.5
Rim Size Rear 17M/C x MT5.5
Tyres Front 120/70-ZR17M/C (58W)
Tyres Rear 180/55-ZR17M/C (73W)
Suspension Front 41mm convensional telescopic fork 120mm stroke
Front wheel travel 108mm wheel travel
Suspension Rear Monoshock damper with adjustable preload, 43.5mm stroke
Rear wheel travel 128mm wheel travel
Instruments & Electrics
Instruments Digital speedometer Digital bar graph tachometer Dual trip meter Digital bar graph fuel gauge Digital clock
Security System HISS
Headlight 12V, 55W x 1 (low)/55W x 1 (high)
Taillight LED
Please note: model availability varies by market. Please visit your local dealer's site for more information.

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