Alan
Cathcart writes.....about the Ducati Test (Page 2)
In spite of owning one myself at one stage, I always
had a slightly jaundiced view of the MHR road bike,
as being a triumph of styling over true race-replica
engineering: an SPS version of the stock 900SS, it assuredly
wasn't, in the way that the first 750SS was a street-legal
version of Paul Smart's works Imola-winner. Now, though,
having ridden the bike it was derived from, I have to
qualify that opinion, because the most remarkable thing
you immediately notice about the 900TT1 is how normal
it feels to sit on and ride. Save for the substitution
of an oil cooler for the headlamp you might expect to
find in front of you, and the classical white-faced
Veglia revcounter staring back at you, this could be
any Ducati V-twin roadburner with a fairing ever made:
definitely a Modified Production battletwin, rather
than a twin-cylinder period Superbike racer! This is
scarcely surprising, really, given that although the
chassis is a specially-made lightweight chrome-moly
frame, it was built by Verlicchi on the same jig as
the street 900SS, though the seemingly-stock swingarm
is actually wider than standard to slot in the wider
rear wheel, which might have been shod with a treaded
Dunlop as ridden by Mike, but for the fact that it's
Avon who make the benchmark race-quality 18-inch tyres
today - so that's what were fitted for the test. The
advent of 13-inch Girling gas shocks like the ones Sports
swapped to almost at once, replacing the shorter and
less compliant Marzocchis the bike came with, were a
godsend to those of us racing Ducati V-twins in mid-'70s
Production events, because not only did they improve
handling and help jack up the back end to remove ground
clearance problems, in doing so they steepened the effective
head angle and sharpened up the steering - well, made
you less aware of the stretched-out 1500mm/59 in. wheelbase,
at any rate. The lower mountings for the rear shocks
are copiously drilled, though, to offer a choice of
preload positions.
Though the clipons on Mike's bike are surprisingly
steeply dropped - almost like a 125 GP racer - they
do at least allow you to tuck elbows and shoulders well
in behind the comparatively all-encompassing fairing,
while the long shocks mean you sit a little higher off
the ground, slotted into that comfy, well-padded seat.
The riding position isn't quite as stretched out as
the 750SS I've been racing on and off for the past 25
years, though, because the fat backpad that wedges you
in place also helps push you forward a little, to offset
the inherent 48/52% rearwards weight bias of the air-cooled
90-degree V-twin by using the rider's body weight to
compensate. But the footrests feel lower and a little
further back than usual on a racing Duke, testament
perhaps to Mike's crash at the Nurburgring in '74 which
ended his F1 car racing career, causing permanent damage
to his right leg and foot that made even walking sometimes
painful, and meant that after a classical career of
right-foot shifting, for his comeback he had to learn
how to use a left-foot one-up racing gearchange, here
neatly installed on the Ducati via a linkage through
the swingarm pivot shaft. I have to admit being rather
glad of that myself - for my Mallory outing on the bike
was actually my first time on a race track since breaking
my right leg in a race crash three months before, and
finding such a historic racer tailored to suit was an
added bonus! Except - the low footrests may be more
comfy, but in winning the Mallory race Mike ended up
dragging his right foot hard enough on the tarmac to
wear away the boot leather and finish with a bloody
foot. Never having been brave enough to encounter a
similar problem with any of the several big Ducatis
I've owned and raced down the years, I surprised myself
by emulating the master at Mallory - even Kushitani-san's
effective toe scrapers couldn't prevent 40 laps of cranking
round Gerards and the Esses delivering a severely chamfered
right boot. No blood, though - sorry: obviously not
trying hard enough. . .
I'd expected the TT-winning Ducati to have a muscular,
meaty power delivery down low, even with those high-lift
cams, and it didn't disappoint, the higher compression
ratio helping it pull crisply and cleanly out of the
hairpin or chicane from very low revs, with no transmission
snatch or hesitation. It's as smooth and tractable as
a road bike down low, and almost as measured in the
way it builds revs up to 7000 rpm, when suddenly things
start to happen a lot faster, as the exhaust note hardens,
engine acceleration picks up and the Veglia tacho needle
scoots off towards the five figure zone. But at any
revs the big twin motor feels very loose and free-revving,
with notably reduced inertia compared to any other bevel-drive
desmo I ever rode, even Paul Smart's Imola 200-winning
750, which had not a lot less power but definitely wasn't
as torquey as the Hailwood machine, nor - in spite of
being smaller in capacity - had such an appetite for
revs. Nepoti and Caracchi of NCR must have done a lot
of work in refining the internals of the bevel-drive
motor, which further benefitted from Steve Wynne's careful
preparation. Really, any gear you throw at this bike
is the right one, and even with the vastly improved
shift action of the Hewland gearbox whose precision
makes light work of clutchless upward changes, you really
don't need to work the gearbox as hard as you'd expect.
Yet even with the very high bottom gear that allows
you to scoot out of the Mallory hairpin and into the
chicane without changing up, acceleration is strong
enough to leave modern 600 Supersports weighing only
a little more than the Ducati's 166 kg. half-dry in
your wake, with 750 riders taking a closer look at this
thundering, cobby-looking timewarp racer as they have
to work their engines a little harder to pass right
on by. That 87 bhp is delivered to the back wheel in
a forgiving, yet still deceptive manner: make sure you
get the Ducati lined up right before you pull the trigger
on it, because unlike any other big twin desmo I've
ever ridden, it'll fast forward the surrounding scenery
above that seven grand power threshold, in a way that's
undeniably impressive.
Riding the Ducati in what Steve Wynne terms 'something
approaching anger' at Mallory Park only increased my
appreciation and awe at Mike Hailwood's achievement
in winning the F1 race there against the better accelerating,
shorter wheelbase fours, even without the chicane that
nowadays disfigures the track. The long wheelbase chassis
feels ultra-stable round Gerards, especially with the
Kawasaki steering damper mounted below the right clipon
to stop the front wheel flapping over the bumps on the
exit, but that doesn't prevent the front end pattering
there as the Marzocchi forks do their best to iron out
the bumps, while there's pretty dramatic power understeer
on the exit both here and again at the Esses, where
you have to work hard at muscling the Ducati back on
line. Just back from the TT after my best-ever fifth
place finish back in '78, but needing to work on preparing
my bike for the next race, I couldn't get to the Post-TT
Meeting to watch Mike the Bike do his stuff one more
time, but I do vividly remember watching the BBC's live
TV broadcast and seeing the way Hailwood threw the bike
on its side at the hairpin each lap, en route to an
unlikely victory. I remain as awestruck today after
riding the same bike round the same track 20 years on
as I was back then. Mike's relatively unsung Mallory
victory was arguably an even greater achievement than
his TT win, because this motorcycle is fundamentally
unsuited to such a relatively tight though deceptively
fast track. Hero material....

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