TRX
700XX Chassis / Suspension |
|
|
The
Honda TRX 700XX frame is
constructed of steel with
a removable sub-frame
|
The frame of the TRX700XX is constructed
of steel with a removable sub-frame;
each is extremely durable and strong.
Independent double-wishbone front
suspension uses steel A-arms and premium
shock absorbers featuring two single-rate
springs per side. This application
of dual springs, a first for Honda,
separates the function of each. Both
the main spring and the short top
spring (second spring) are single
rate. Bottoming resistance is provided
by the heavier main spring and the
top spring adds compliance over small
bumps. Together, they achieve what
a progressive-rate single spring could
have accomplished, but in a lighter,
more compact package that takes full
advantage of the 10.5 inches of useable
suspension travel. Front preload is
adjusted with screw-type adjusters.
The A-arms are attached to aluminum
steering knuckles, which in turn bolt
up to aluminum hubs and 10-inch diameter
aluminum wheels fitted with 21x7R-10
Dunlop radials.
| |
|
| The
TRX 700XX front suspension provides 10.5"
of suspension travel with two single-rate
preload adjustable shocks |
The
TRX700XX has 9.3" of
rear suspension travel with
preload adjustable piggy back
reservoirs shocks |
| |
The
TRX 700XX has Dual hydraulic
174 mm discs up front and
a single 200mm disc in the
rear
|
The aforementioned independent
double-wishbone rear suspension,
made possible by the innovative
centered chain drive system, features
steel upper and aluminum lower A-arms.
The upper and lower A-arms pivot
on sealed needle bearings at the
frame and support aluminum knuckles
via oil-less bushings. The knuckles
attach to steel hubs, and the 11-inch-diameter
aluminum wheels sport 22x9R-11 Dunlop
radials. The reason for steel hubs:
greater resistance to side impacts
and side loads. These steel hubs
weigh less than an aluminum hub
with the same strength characteristics.
A non-adjustable rear sway bar attached
to the frame and lower A-arms controls
excessive roll without compromising
the independent action of the IRS.
Piggyback reservoir shocks provide
9.3 inches of fully usable travel
and feature screw-type preload adjusters.
Braking action is supplied by a
hydraulic single piston squeezing
a 200mm disc. The rear brake assembly
is mounted on the rear sprocket
receiver and is situated 33mm right
of the 700XX's centerline—symmetrically
opposed to the location of the sprocket/chain
assembly to facilitate equal-length
A-arms and drive shafts.
| |
|
|
The
TRX 700XX utilizes large 11"diamater
Aluminum rear wheels to allow the knuckles
and hubs to reach farther into the wheel
cavity, and to keep the wheel cavity clean
of mud & debris, a rim scraper is mounted
on the inside of the wheel
|
An interesting outgrowth of Honda's goal to fit
the longest A-arms and axle shafts possible is
the use of special 11-inch-diameter rear wheels
(larger than competitive designs). The larger-diameter
wheels allow the knuckles and hubs to reach farther
into the wheel cavity, which effectively extends
the A-arms and axle shafts to the perimeter of
the 700XX's track width. To maintain strength
and light weight, the thickness of the rear-wheel
wall varies as it extends from the center plate
to the outer ring of the wheel—another Honda
ATV first. And here's another: the fitment of
replaceable rim scrapers to remove mud and debris
from rear wheels, a feature pioneered on Honda's
popular Foreman and Rincon series.
