The VFR's transmission
has also received detailed modifications in the quest for optimal two-up
sports touring performance. Closer ratios between gears 1 through 3
combine with a 1-tooth smaller drive sprocket and the engine's stronger
low-to-midrange power output to deliver sharper acceleration.
To reduce the shocks of upshifts to the drive train and, by extension, to
rider comfort, the clutch's 2-step coil spring damper was replaced with a
new 3-step damper that ensures smoother, more comfortable operation in
virtually all traffic and riding conditions.
Based on the same
high-performance aluminium twin-spar frame that currently resides at the
heart of the VFR, the new frame designed for the 2002 VFR provides the
perfect complement to its exciting new engine and stunning bodywork.
Featuring a 'Pivotless' design that isolates the steering head from the
swingarm's torsional stresses, this frame was refined to deliver the
ultimate balance of agility and long-distance touring performance,
providing both nimble handling and smooth high-speed cruising stability.
The frame's massive
cast aluminium steering head was reinforced with the addition of a new
cast-in vertical plate positioned behind the steering pivot. This plate
provides greater torsional rigidity in the steering head's vertical plane
for firmer, more responsive control while minimizing the effects of
heavier loads on handling. Reaching back from the steering head, the
massive triple- box-section
twin spars have had their extrusion thicknesses revised for an enhanced
balance of rigidity, resulting in more sporty and responsive handling that
becomes especially noticeable when fully loaded for two-up touring.
In complement to the
frame's newly revised steering head, the VFR's responsive cartridge-type
front fork now features larger, new 43mm stanchion tubes in place of the
earlier model's 41mm tubes for enhanced rigidity and more confidently
assured control when traveling under the potentially heavy loads of two-up
touring.
Another new addition
to the VFR's frame is an underside frame bracket like that was first seen
on the CBR900RR Fireblade, which now surrounds the engine's cast-in
swingarm pivot and firmly grips its ends to increase pivot area strength
and torsional rigidity. The rear damper's base bracket was also modified
for greater strength and rigidity, and enhanced control.
Although the VFR has
always been highly regarded for its accommodating pillion passenger
comfort, extensive changes to its tail section now offer even greater
long-term comfort that extends to long hours of cross-country touring. The
VFR's seat and tail section now ride on an innovative, new seat rail
designed around a single, large, high-rigidity rectangular-section steel
tube designed to provide extra carrying capacity while making ample room
for the VFR's new 'Centre-Up' exhaust system.
With the new twin
exhausts now repositioned under the seat, room has been freed-up to lower
the pillion pegs 10mm to a more comfortable position for a wider range of
riders. The pillion section of the seat itself was also improved with
15mm-thicker padding material providing a more plush ride for
longer-lasting comfort, while the VFR's detachable rear grips were
reshaped and extended outward an extra 10mm for an easier hand hold. As
always, the grips feature dual-injection resin construction for
all-weather comfort.
Equipped with one of
the most advanced and compact versions of Honda's brake control-assisting
Dual Combined Brake Systems, the VFR delivers a confidence-inspiring
balance of brake operation that brings it to a quick and sure stop with an
optimal balance of front and rear braking forces, whether the rider uses
both the hand and foot brake levers or only one of the two.
Since giving the VFR a
more sporty balance of performance was one of the foremost goals of its
total redesign, attention was also paid to giving its advanced brake
system a more sporty and aggressive package of braking characteristics.
This was achieved, through careful evaluation, by re-routing the lines
controlling its caliper piston actions.
Where nearly all Dual Combined Brake Systems till now have the hand brake
lever controlling the two outer pistons of both front 3-piston calipers,
the new VFR's front brake lever operates the two outer pistons of the
left-side front caliper and all three pistons of the right-side caliper,
as well as the centre piston of the rear brake caliper (by way of the
secondary master cylinder), resulting in a more front-oriented braking
response.
The foot brake pedal
that previously actuated the two outer pistons of the rear brake caliper
and both centre pistons of the front calipers now actuates the same two
rear brake caliper pistons, but only the one centre piston of the left
front caliper. This revised balance of braking force is administered
through a direct-side proportional control valve (PCV) mounted inline
between the foot brake master cylinder and the rear caliper.
During light
applications of the foot brake, most of the actual braking force is
applied at the rear wheel, with only the slightest amount of front brake
input at the one left-side caliper providing a steadying influence on the
balance of front and rear brake control without causing unsettling shifts
of weight and its related front-end dive.
However, this balance
of operation changes in response to strong pedal operation, in which case
the system adjusts for an optimal balance of front and rear braking
forces.
As in other Dual
Combined Brake Systems, the compact secondary master cylinder integrated
into the left-side caliper's pivoting mount increases rear caliper brake
pressure through a servo-side PCV as its own braking forces increase in
response to front brake lever actuation. This results in a smoothly
progressive application of combined braking forces that starts with
greater emphasis on the front brakes and gradually but firmly applies a
balancing amount of rear braking force whenever the situation calls for
it.
Taken together, these
two brake operation scenarios provide a more aggressive distribution of
braking forces that both enhances braking confidence for a wider range of
riders and skill levels, and provides a more familiar combination of
braking characteristics for hard-core riders who insist that their own
braking skills are second to none. |