HONDA CBR600RR

no wonder the
CBR600 has won so many accolades, the build quality is excellent
For 20 years the
Honda
CBR600 has enjoyed success on the street, the track and the sales
floor. This latest version continues that trend, taking the supersport class to the next level.
Honda's design team had a goal: Build the fastest 600 for street or track while
retaining Honda reliability and meeting strict new emission standards while
keeping the cost at a level that won't scare away consumers.
The previous CBR600s, despite originally being designed as streetbikes, have
won many championships, 8 AMA Supersport titles to be exact.
That design philosophy worked wonders for the first 15 years, but it took a back
seat in 2003 with the introduction of the track-focused CBR600RR. But even
though the 600RR has dominated the FIM World Supersport championship in every
year of its existence, winning 4 consecutive titles to go along with 3
consecutive
AMA titles, it gets a clean-sheet redesign performed in
conjunction with the development of the
RC212V MotoGP machine.
Just look at the new bike and tell me it doesn't ooze Honda from tip to tail.
Starting with the RC51-inspired centrally located ram-air intake duct nestled
between the twin headlamps, the open-air look of the Formula One inspired
bodywork that exposes the engine through its minimalistic covers. The lighter underseat
exhaust features titanium internals. The Matte-black frame spars, Pro-Link swingarm
and black three-spoke wheels ensure this bike stays true to it's heritage. Add
into the equation a great new motor and even better chassis supplemented with a
healthy dose of MotoGP technology, and it's easy to understand why it's such a
great, exciting little bike.

with the CBR600RR
at Midvaal Raceway - photos by Graeme Van Bergen

Full of fuel, Honda claims the '07 CBR600RR weighs in at 187kg compared to
195kg for the '06, revealing a significant 8kg loss. If these figures are correct
then, without fuel, the '07 should tip the scales at a petite 156kg, making it
easily the lightest in it's class. On the track, the 600RR felt light and responsive while trying to tap into this bike's potential.
Getting up to speed on the 2007 CBR600RR is not a problem because of its all new
599cc four-cylinder motor that is smaller, lighter and more powerful. It sets
the tone for the whole light and compact theme of the bike. Overall engine
length is reduced by 28mm, while the new crankcases, magnesium valve cover and
internal components combine to purge 1.5 kilos from the engine alone. As
impressive as these diminished digits look on paper, they are merely a sidebar
to the story once the motor is running.
It makes power from the moment you twist the
throttle, coming into it's own at around 7000 rpm, and continues to pull harder and
harder as the revs climb to the 15,000 rpm 'redline'. Peak power is reached at
13,500 rpm (according to Honda), but by then this baby is really
moving. Power is readily available in the often-used mid-range; just shift up
and down the slick-shifting 6-speed gearbox and you will be hard-pressed to find
anything to whine about. If you do, it will be the only sound you hear because
the bike is very quiet.
It's important to know that the CBR does not have a top-end-biased power curve.
It has a broad power curve that should make it both a better street bike and a more competent
race bike. It was stable under acceleration. The 600RR pulls as hard as any
other in it's class and the power delivery is
so rider-friendly that it should easily give other 600's a run for their
money.
The motor is unbelievably smooth. Throttle response is great, too, thanks to a
trio of race-proven components. A centrally located ram-air intake on the front
cowling allows for a more direct flow of cool air to funnel through the steering head into the
redesigned 0.7 liter larger airbox where a new air-intake control valve (IACV)
works in conjunction with the latest version of Honda's two-stage fuel injection
(PGM-DSFI) system to offer seamless on-off throttle response. The IACV
purportedly smoothes out throttle response by moderating incoming air flow at
the moment the throttle is opened or closed. This helps to alleviate the
tendency of many FI systems to be abrupt when getting on or off the gas.
Complimenting Honda's most powerful and compact CBR600 motor to date are some
first-rate chassis components. The Fine Die Cast (FDC) frame design features
four hollow pieces versus the 11 pieces necessary to create the
frame of the '06. It starts at the new steering-head casting with integrated
ram-air port, relocated 10mm further away from the crankshaft than the '06 bike.
Then there's the two main frame spars and the one-piece U-shaped rear swingarm
pivot and motor mount. The entire frame weighs in 0.5kg less than the '06, and
when combined with the smaller motor, aids in the effectiveness of the mass
centralization concepts applied to the entire design.
Suspension includes inverted 41mm Honda Multi-Action System (HMAS)
forks with spring preload, rebound- and compression-damping adjustability. The
outer fork tubes are anodized black so they look as good as they work. Out back the Unit Pro-Link rear suspension and
now longer swingarm continues to provide one of the greatest rides of any
production 600 on the market. At the 9-turn Midvaal circuit, the CBR had me
feeling confident.
The bike was very responsive. Although it has seriously aggressive chassis
geometry numbers, it feels particularly stable. Its stubby 1366mm wheelbase
(reduced from the 1389mm '06 version), more-acute 23.7-degree steering head
angle (reduced from 24.0) and decreased 95mm of trail (down from 98mm) points
towards toward a potentially nervous chassis, but that's not the way it feels.
Credit the new, more compact HESD (Honda Electronic Steering Damper) and
repositioned steering head point combine to keep the handling characteristics
steady.
Bringing the CBR down from speed is great, thanks to the radial
technology brakes. On the front hub, a pair of 310mm discs and four-piston
radial-mount Tokico calipers actuated by a new vertical-piston radial-mount
master cylinder performed flawlessly, they offer excellent feel without being too
abrupt, making them perfect for riding hard in a variety of
conditions. A single-piston rear caliper and 220mm disc keeps the rear of the
bike in shape when needed.
From the saddle the CBR600RR feels great. It's riding position is
well suited to the track and less taxing on the butt
and shoulders of street riders.
You have to be committed to being tucked in if you want to maximize the
aerodynamics of the bike, and if you do, then you are more flexible than I am.
Outright wind protection when riding around in the standard street rider's
riding position is typical for a sportbike.
I found the bodywork very
appealing. Take a look at the profile... you can see light peeking through
everywhere, helping the bike appear lighter.
The instrument cluster features a central analog rev-counter with
large, easy-to-read numbers. To the right of the tach is an LCD display for
speed, temperature, tripmeters, odometer and a clock. To the left is the fuel
gauge.
Overall, I was hard pressed to find fault in the 2007 Honda CBR600RR. It is
lighter, faster and looks better than any previous CBR600.
The
super-smooth motor will surely meet the needs of street riders and should be more
than competent for racers, the brakes and suspension are billed as racing
quality, and it is, of course, a Honda.

HESD
(Honda Electronic
Steering Damper) is hidden under the fuel tank
The Honda Electronic Steering Damper is an
electronically controlled hydraulic rotary damper,
mounted on the steering head. Damping
characteristics are automatically adjusted in
response to motorcycle speed and acceleration, for
high-speed comfort and low-speed manoeuvrability
without the rider having to have expert track set-up
knowledge to extract the best from his machine on
the road or the track.
The Unit Pro-Link rear suspension system was
developed on the MotoGP winning RC211V. This
revolutionary system does not mount the shock
directly to the main frame, thus greatly reducing
the transmission of suspension impacts to the frame.
The result is stable cornering and superb off-corner
acceleration, with brilliant overall handling
characteristics.
Suspension components include an inverted 41mm Honda Multi-Action System (HMAS)
fork with spring preload, rebound- and compression-damping adjustability. The
outer fork tubes are anodized black so they look as good as they work.

stationary at the
Midvaal circuit - photos by Kenn Slater


naked CBR600 with everything stripped
off
|
Make Model |
2007 Honda CBR 600RR |
|
Engine |
Liquid cooled, four stroke, transverse
four cylinder, DOHC, 4 valve per cylinder |
|
Capacity |
599cc |
|
Bore x Stroke |
67 x 42.5 mm |
|
Compression Ratio |
12.2:1 |
|
Induction |
PGM-DSFi
fuel-injection with four 40mm throttle bodies. |
|
Ignition |
Computer-controlled digital
transistorized with
electronic advance and independent four-cylinder 3D-mapped
computer control |
|
Clutch |
Cable-operated multiplate wet clutch |
|
Max Power |
118 hp 88.1 KW @ 13500 rpm |
|
Max Torque |
66 Nm @ 11250 rpm |
|
Transmission / Drive |
6 Speed / chain |
|
Front Suspension |
41mm inverted HMAS cartridge fork with
spring preload, rebound and compression damping
adjustability, 120mm wheel travel |
|
Rear Suspension |
Unit Pro-Link HMAS single shock with
spring preload, rebound and compression damping
adjustability, 129.5mm wheel travel |
|
Front Brakes |
2x 320mm discs 4 piston calipers |
|
Rear Brakes |
Single 220mm disc 1 piston caliper |
|
Front Tyre |
120/70 ZR17 |
|
Rear Tyre |
180/55 ZR17 |
|
Seat Height |
820 mm |
|
Dry-Weight
|
156.5 kg |
|
Fuel Capacity |
18.2 Litres |
|
Standing 1000m |
20.6 sec / 244 kph |
|
Standing 400m |
11.1 sec / 208 kph |
|
Top Speed |
253 kph |
|

clear,
easy-to-read, uncluttered
dash of the CBR600RR
The world asked for a lighter and more powerful CBR and we got it. Mission
accomplished!
Thanks to Midvaal Raceway for the use of their
track and
thanks
to Joeline Dobrowski and her team at Honda South Africa for the ride,
they had to send two BIG guys to pry it from
my hands... the best 600 we've EVER ridden.