Chassis
The new 2007 Hornet features a totally upgraded chassis based on its well-established Mono-Backbone frame configuration, which reaches from steering head to rear engine mount and swingarm pivot in one long stretch of large-section rectangular tubing. One of the primary concepts behind this design is to provide a simple and solid ‘diamond’ configuration that incorporates the engine as its central stressed member for an excellent balance of rigidity and light weight. This design also allows the engine to be prominently seen, with no large frame sections interfering with its sleek, simple and aggressively mechanical design. All-New Aluminium Die-Cast Mono-Backbone Frame
The new 2007 Hornet maintains essentially the same basic Mono-Backbone frame configuration. However, instead of being constructed of welded steel tubing, its newly developed frame features lightweight gravity die-cast (GDC) aluminium construction. The frame’s three cast sections (front head pipe, backbone and swingarm pivot) are welded together for lighter weight compared to the older steel tube design. Besides being lighter, this new cast aluminium frame provides significant increases in strength and rigidity for sharper yet smoother handling and instantaneous response to changes of direction.
Centralised Mass
In order to achieve sharper, more responsive handling in its new design, the Hornet also underwent a well-proven regimen of mass centralisation that positions the its heavier components, notably its new engine and exhaust system, as close as possible to the machine’s rolling centre of mass while lightening those sections positioned farther away from its centre. The Hornet’s slimmer and lighter seat and tail cowl combine with reduced weight at the front end to reduce inertial mass at the machine’s extremities, which translates into lighter and sharper handling everywhere. The result is a look of uncompromising performance backed up with crisp, highly responsive cornering control that handles rapid changes in direction with calmly assured control.
New Tapered Aluminium Swingarm
The new Hornet also features a newly designed tapered dual-box-section aluminium swingarm, which makes an important contribution to reduced unsprung weight while playing a key role in optimising the chassis’ overall balance of rigidity. At 579mm in length, this new swingarm is also 5mm longer than the box-section unit fitted to its predecessor.
Swift-Handling Suspension Systems
To ensure the new Hornet is up to handling everything a road can throw at it in high-speed chases through the twisties or daily negotiations of dense city traffic, its new die-cast aluminium frame mounts highly capable suspension systems. Up front, the big gold-anodised outer tubes of its 41mm inverted HMAS cartridge-type front fork exude a look of invincible control while compliantly soaking up the road’s rough spots with 120mm of smoothly damped wheel travel. At the rear, a Monoshock damper takes up position between the swingarm and the rear frame to provide positive and progressive control for assured handling balanced with compliant comfort.
Include description of damping modifications and reduced unsprung weight.
High-Performance Wheels and Brakes
One of the Hornet’s main points of visual attraction has always been its wide, low-profile Super Sport tyres, as used on Honda’s premier Super Sports riding machines. Providing outstanding performance to back up their aggressive looks, these tyres further ensure precisely responsive high-speed cornering control for aggressive street riding capability. For 2007, the Hornet’s lightweight new aluminium alloy 5-spoke wheels mount the same high-speed rated tyres (Front: 120/70-ZR17; Rear: 180/55-ZR17) for both top performance and dynamic looks.
Fast bikes need strong brakes, and in its basic configuration, the new Hornet mounts a pair of dual-piston front callipers gripping wide 296mm drilled floating discs. At the rear, a compact new single-piston calliper, like that used on the CBR600RR, slows a 240mm disc for smooth, responsive control.
New Combined ABS Version
For riders who want the ultimate in braking control to match its aggressive streetfighting performance, the all-new Hornet will also be made available with the highly responsive braking capability of Honda’s most advanced Combined ABS brake system.
Proven Combined Brake System
In its Advanced Braking System configuration, the new Hornet features Honda’s well-proven Combined Brake System, which links the rear brake pedal to the centre piston of its right-side three-piston front brake calliper to provide a measured amount of front brake control whenever the rear brake is firmly used.
A delay valve positioned in the line between the rear brake master cylinder and the front calliper ensures that light operation of the rear brake, such as when trailing through a corner, has little or no effect on front brake operation. Firm operation of the rear brake pedal results in just enough front brake engagement to assure a positive balance of front and rear braking forces for smooth, controlled operation. A proportional control valve (PCV) installed between the master cylinder and the rear brake calliper ensures progressive braking control.
Front brake engagement is strong and responsive, and the remaining five pistons of the two three-piston front brake callipers operate in the conventional manner, providing reassuringly strong braking control to match the Hornet’s sporty riding capability.
High-Performance Antilock Brake System (ABS)
The new CB600F Hornet is also the first mid-sized Performance Naked streetfighter ever to be equipped with the precision braking control of ABS (Antilock Brake System). Featured on several Honda models to date, this compact and lightweight system minimises the chance of tyre slip when braking over uneven or slippery road surfaces, for greatly enhanced rider confidence.
The system’s high-speed computerised electronic control unit (ECU) manages a single, compact motor-driven modulator that controls the operation of both front and rear brakes. The ECU monitors a pair of small Hall-effect sensors mounted to the front and rear brake calliper mounts, constantly comparing the rotating speeds of the small louvered pulsar rings attached to the centre of each wheel. The slightest hint of tyre slippage, which is detected as minute fluctuations in the relative speeds of the front and rear wheels-and is usually far too small for riders to detect-causes the ECU to activate the modulator with a rapid cycling of brake pressure in rapid micro-intervals of brake pressure control (Decrease-Hold-Increase) that applies just enough brake pressure to provide smooth and steady deceleration. All this happens too quickly for riders to notice, but effectively prevents either the front or rear wheel from slipping and losing control before it can begin.
High-performance riding always requires high-performance brakes, and the Hornet’s advanced Combined Antilock Brake System provides sportsbike braking performance to give both seasoned experts and less experienced riders more confident braking control in situations where optimal braking ability is a must.