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Featuring
a new frame, swingarm, suspension and bodywork, the TDM900's new
high-specification chassis shares very little in common with the 2001
model, and as well as being significantly lighter it also offers enhanced
handling performance.
One of the most significant changes on the TDM900 is the all-new aluminium
frame which replaces the previous model's steel design. Featuring
widely-spaced twin spars and a detachable sub frame, this new frame is 29%
lighter than its predecessor, and at the same time offers much greater
torsional, vertical and horizontal rigidity.
New-design brackets are located below the frame's main spars, and these
are equipped with R-series type rigid engine mounts that attach to the
cylinder head for increased chassis stiffness. Also new is an aluminium
box-section swingarm that offers lower unsprung weight and higher rigidity
for improved suspension action.
To match the
higher-specification chassis the TDM900 is equipped with uprated 43mm
front forks. For 2002 they feature adjustable rebound damping, and also a
preload adjustment facility. Offering a generous 150mm of wheel movement,
they can be quickly and easily adjusted to suit different riding
situations.
The totally new rear end features a sophisticated link-type suspension and
a piggy-back shock absorber that is equipped with adjusters for rebound
and compression damping as well as for spring preload. The linkage system
gives rising rate suspension characteristics for better performance, and
the fully-adjustable shock enables the TDM900 rider to choose the best
set-up.
Every effort has been made to reduce
weight where possible, and the TDM runs with new-design 3-spoke wheels
that are lighter and also wider. The MT3.5 front wheel is fitted with a
wider 120/70-ZR18 tyre, while the MT5.0 rear wheel carries a fatter
160/60-ZR17, and this combination of lower unsprung weight and wider front
and rear tyres makes for improved road holding and smoother suspension
action.
Just like virtually every other chassis component, the braking has also
been uprated, and the TDM900 is fitted with new R1- type one-piece
4-piston dual calipers at the front end that slow a pair of 298mm diameter
floating discs manufactured from 5mm thick steel, 1mm up on the 2001
model. Together with the new pin-slide type rear caliper, this new braking
system generates strong and progressive stopping performance and offers
plenty of feel.
For added convenience
the front brake lever features a 5-position adjuster, while both the rear
brake lever and gear change lever are now manufactured from forged
aluminium to save weight ¨C and for reduced friction the gearchange shift
rod layout is changed.
Yamaha's designers have created all-new bodywork for the TDM900 that gives
the machine a much more dynamic and stylish feel, and at the same time is
instantly recognisable as being a TDM.
The new more angular and aggressive-looking cowling flows seamlessly into
a new-look 20-litre fuel tank, and the cutting
edge styling is complemented by new dual multi-reflector headlights and
redesigned tail light. Completing the package is a new front fender,
restyled tail and comfortable new dual seat.
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