2021 HONDA CB650R

2021 HONDA CB650R

Model updates: Honda’s Neo Sports Café middleweight gains Showa’s 41mm Separate Function Big Piston forks, plus EURO5 compliance for its high-revving four cylinder engine. Other updates include more forward-set handlebars, improved LCD dash and USB Type-C socket under the seat. New side panels accentuate the minimalist styling.

Contents:

1 Introduction

2 Model overview

3 Key features

4 Accessories

5 Technical specifications

1. Introduction

Honda has always thrived on exploring new boundaries – in design as well as engineering. In 2018, the CB1000R, CB300R and CB125R brought a fresh identity to its naked motorcycle line-up, mixing café racer inspirations with a forward-looking ultra-minimalist look under the ‘Neo Sports Café’ design theme.

One segment remained for the new aesthetic to find expression: the hugely competitive naked middleweight arena and in 2019, the CB650R confidently took on this role. Aimed at a young demographic that looks to show off in style and enjoy to the maximum a combination of exhilarating four cylinder engine performance and light, versatile, refined chassis handling, it has proved a great success.

Building on the momentum, for 2021 the CB650R receives a major front suspension upgrade, plus a range of detail improvements to enhance comfort, usability and practicality.

2. Model Overview

The major news of the CB650R’s update is application of 41mm Showa Separate Function Big Piston USD forks* – high quality suspension that further heighten the bike’s handling ability.

EURO5 compliance for the engine has been achieved with no loss of top end power; other improvements include slightly more forward-set handlebars, improved visibility for the LCD display and USB Type-C charging socket under the seat. New side panels and rear mudguard are minor cosmetic changes.

The 2021 CB650R will be available in the following colour options:

Pearl Smoky Gray **NEW**

Mat Gunpowder Black Metallic

Candy Chromosphere Red

Mat Jeans Blue Metallic

*Full name: Showa Separate Function front Fork Big Piston (SFF-BP)

3. Key Features

3.1 Chassis

• New Showa Separate Function Big Piston (SFF-BP) USD forks
• Four-piston, radial-mount front brake calipers and floating discs
• 120/70-ZR17 and 180/55-ZR17 front and rear tyres

The CB650R’s steel diamond frame uses pressed swingarm pivot plates and twin elliptical spars with a rigidity balance specifically tuned (stiffer around the headstock and more flexible in the spar sections) to deliver balanced handling characteristics, with high levels of rider feedback. Rake is set at 25.5° with trail of 101mm and wheelbase of 1,450mm. Kerb weight is 202.5kg.

Showa’s Separate Function Big Piston (SFF-BP) 41mm USD forks are a major upgrade. A pressure separation damper in one fork tube and spring mechanism in the other deliver high damping performance and lighter weight. Together with the use of a larger sized piston the result is increased feel, bump absorption and control. Adjustable for 10-stage spring preload, the single-tube monoshock operates directly on the curvaceous gravity die-cast aluminium swingarm.

Four-piston radial-mount front brake calipers work on 310mm wave-pattern floating discs, and are paired with a single-piston rear caliper and 240mm disc. The ABS is a two-channel system.

Cast aluminium wheels mount 120/70-ZR17 and 180/55-ZR17 front and rear tyres.

3.2 Styling & equipment

• New side panels and rear mudguard/number plate mount
• Handlebar angle increased for easier low-speed manoeuvring
• LCD display now easier to read; USB Type-C socket under the seat

Tightly wrapped and aggressive, the CB650R’s Neo Sports Café style features the signature compact ‘Trapezoid’ proportion of short, stubby tail and short overhang headlight. The long fuel tank is a key motif of the family design; its smooth lines accentuate the solidity of real metal surfaces and crown the engineering of the four cylinder powerplant. It also houses the ignition.

New, smaller side panels accentuate the minimalism, as does the rear mudguard, which is now constructed from steel rather than nylon plastic. There’s also now a USB Type-C socket located under the seat, for easy charging of a mobile device. Seat height remains 810mm.

The round headlight is one of the key words of the Neo Sports Café design language. It’s LED, as is the rest of the lighting. Sharp LCD instruments use the CB1000R as a baseline and include a Shift Up, Gear Position and Peak Hold indicator. For 2021 readability has been improved with a change of LED angle and font size.

Another detail change is an increase in the handlebar angle, up 3° to 35°. This adjustment makes tight, slow-speed turns and U-turns easier.

Valerio Aiello of Honda’s Rome R&D Department on the Neo Sports Café design aesthetic:

‘The entire current Neo Sport Café range from Honda is the result of the CB4 Concept model presented at EICMA in 2015. Our desire was to explore the world of the café racer and reinterpret it in a modern key.

All the models of this CB series are not simply retro-vintage motorcycles, but rather neo-classics - that is, modern motorbikes showcasing classic design styles combined with modern techniques.

We wanted to create a new stylistic dimension, different from the muscular streetfighters of the last few years, and at the same time, far from the simpler café-racer style. The end result is that none of the bikes from the competition resemble the Neo Sports Café range and, like them or not, they are easily recognisable as Hondas. The competitors have classic or very modern motorcycles in their ranges, but in my opinion, not something that goes in the wake of both styles.

During development of the CB4 concept, I found inspiration from outside the world of motorcycles, in watches. I’ve always liked their technicality and one of the key concepts used during the Neo Sports Café design was 'Mechanical Art'.

‘Mechanical Art’ is the desire to show the beauty of the various mechanical elements to which Honda has always given great importance. Watches do this very well indeed, with their mechanics always creating a certain charm.’

3.3 Engine

• 70kW peak power, 63Nm peak torque with 35kW A2 licence option
• Honda Selectable Torque Control (HSTC)

• Full EURO5 compliance

The 649cc, DOHC 16-valve engine is tuned to create the purest, most enjoyable mid-sized four cylinder performance possible, with the classically fast ‘pick-up’ through the rev range and hard-hitting, high-revving top end for which Honda’s in-line’s fours are renowned. Peak power of 70kW arrives @ 12,000rpm with peak torque @ 63Nm delivered at 9,500 rpm. An easy 35kW conversion is available for A2 licence holders.

Through the 2021 update the only changes to engine specification are for EURO5 compliance; this has required revisions to the ECU, cam lobes, intake timing, exhaust pipe, catalyser and silencer, as well as the addition of a crank pulsar.

Direct cam actuation makes for a compact cylinder head; bore and stroke is set at 67mm x 46mm with compression ratio raised of 11.6:1. Iridium spark plugs are employed and twin air ducts – either side of the fuel tank – feed the airbox and produce a throaty intake roar.

Asymmetric piston skirts minimise bore contact and reduce friction. Ferrous spines on the outer surface of the cylinder sleeves reduce oil consumption (and friction) with improved heat transfer and a silent SV cam chain reduces frictional losses by using a Vanadium coating on its pins. Internal water channelling from cylinder head to cylinders does away with most of the exterior hoses.

The engine uses a compact internal architecture, stacked six-speed gearbox and starter layout with the cylinders canted forward 30°. An assist/slipper clutch eases upshifts while managing rear-wheel lock up under hard braking and rapid downshifts. Honda Selectable Torque Control (HSTC) is fitted to manage rear wheel traction; it can be turned off should the rider choose.

Fuel consumption of 20.4km/l (WMTC mode) gives a range of over 300km from the 15.4L

fuel tank.

4. Accessories

A range of Genuine Honda Accessories is available for the CB650R:

Several aluminium parts and aluminium inserts to maximise the Neo Sport Café design that CB650R and CB1000R have in common (meter visor, front mudguard panels, shroud covers, side covers, seat cowl)

Under cowl

Wheel stripes

Tank bag and seat bag – the same as those for Honda’s native flagship the CB1000R

Quick shifter

Front visor

12V socket

Heated grips

Tank pad

5. Technical Specifications

ENGINE
Type	Liquid-cooled 4-stroke 16-valve DOHC inline-4 cylinder
Engine Displacement (cm³)	649cc
Bore ´ Stroke (mm)	67.0 x 46.0
Compression Ratio	11.6:1
Max. Power Output	70kW/12,000rpm
Max. Torque	63Nm/9,500rpm
Oil Capacity	2.7L
FUEL SYSTEM
Carburation	PGM-FI electronic fuel injection
Fuel Tank Capacity	15.4L
Fuel Consumption	20.4km/litre
ELECTRICAL SYSTEM
Starter	Electric
Battery Capacity	12V/8.6AH
ACG Output	370W
DRIVETRAIN
Clutch Type	Wet, multiplate disc
Transmission Type	6-speed
Final Drive	Chain
FRAME
Type	Steel diamond
CHASSIS
Dimensions (LxWxH)	2130 x 780 x 1075mm
Wheelbase	1450mm
Caster Angle	25.5°
Trail	101mm
Seat Height	810mm
Ground Clearance	150mm
Kerb Weight	202.5kg
Turning radius
SUSPENSION
Type Front	41mm Showa Separate Function front Fork Big Piston (SFF-BP) USD forks
Type Rear	Monoshock damper with 10 stage adjustable preload, 43.5mm stroke
WHEELS
Rim Size Front	Hollow section 6-spoke cast aluminium
Rim Size Rear	Hollow section 6-spoke cast aluminium
Tyres Front	120/70ZR17 M/C (58W)
Tyres Rear	180/55ZR17 M/C (73W)
BRAKES
ABS System Type	2 channel; hydraulic dual disc 310mm front, hydraulic disc 240mm rear
INSTRUMENTS & ELECTRICS
Instruments	Digital speedometer, digital bar graph tachometer, dual trip meter, digital bar graph fuel gauge, gear position and upshift indicator, digital clock
Headlight	LED
Taillight	LED

# Please note that the figures provided are results obtained by Honda under standardised testing conditions prescribed by WMTC. Tests are conducted on a rolling road using a standard version of the vehicle with only one rider and no additional optional equipment. Actual fuel consumption may vary depending on how you ride, how you maintain your vehicle, weather, road conditions, tire pressure, installation of accessories, cargo, rider and passenger weight, and other factors.