|
Make Model |
Ducati 600TL |
|
Year |
1982-84 |
|
Engine |
Air cooled, four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valve
per cylinder. |
|
Capacity |
583 |
|
Bore x Stroke |
80 x 58 mm |
|
Compression Ratio |
10.4:1 |
|
Induction |
2x 36mm Dell'Orto PHM carbs. |
|
Ignition /
Starting |
Bosch PTZ Electronic / electric |
|
Max Power |
57 hp 41.6 kW @ 8500 rpm |
|
Max Torque |
45 Nm @ 6000 rpm |
|
Transmission /
Drive |
5 Speed / chain |
|
Front Suspension |
35mm Telescopic Coil spring forks |
|
Rear Suspension |
Dual shock absorbers with 5 position
adjustable coil spring.
|
|
Front Brakes |
2x 260mm discs 2 piston calipers |
|
Rear Brakes |
Single 260mm disc 1 piston caliper |
|
Front Tyre |
100/90-18 |
|
Rear Tyre |
110/90-18 |
|
Dry-Weight |
177 kg |
|
Fuel Capacity |
18 Litres |
|
Manual |
Bevelheaven.com |
"A Ducati for under two grand? 'Spect that's true."
"What are they then? Ex-police bikes with hardly any miles on
the clock? I suppose they've only been round the once."
These were just a few of the skeptical comments tossed my way
by friends and associates on hearing the news that Moto Vecchia, the Sarf London
Italian bike emporium is telling Ducati 6000TLs for silly money.
600TL? I hear you ask. Wait one moment and I shall explain
all. When Ducati bored out the Pantah to 600cc in 1982, several different styles
of machine were produced, varying from a police version which the Bologna
carabinieri adopted, through an economy model without a fairing, to a touring
machine with one-piece bars and a handlebar fairing, otherwise known as the TL.
The TL really sold only on the home market because, with production costs almost
identical to the SL, Ducatis abroad preferred its sportier brother. Even in
Italy sales weren't that good, so when Ducati sold out to Cagiva, a
large batch of TLs was included in the deal. At least this
was the rumour Richard Avant and Simon Phensic (copyright R Avant/J Ryder),
Vecchia's proprietors heard. So, on a lightning trip around the flesh-pots of
Bologna and the Cagiva factory, Richard casually enquired after the TLs. Much to
their surprise they actually existed and, yes, they could have some for x
million lira each. A couple of minutes' feverish prodding of calculators gave
them the answer they were looking for: Ducatis for £1995. Palms were slapped, a
bottle of chianti was cracked open, and Moto Vecchia joined the ranks of the
importers.
The first batch was brought in at the beginning of August
about ten days ago as I write this copy. And anyone who puts down a deposit
during August will get a TL for £1995. Trouble is, due to the vagaries of
monthly magazine publishing, you the humble reader won't get to read this
autistic prose until mid-September, by which time the price will have risen to
about £2200. Still, it's a good deal even at that price.
With basically identical con struction, the most obvious
difference between the SL and the TL is the styling or, in the TL's ¦, case, the
lack of it. Wkereas the SL has a certain angular charm with the fairing
complementing the tank/seat unit rather well, the TL looks hideous. Only total
Duke freaks and eclectic weirdos (to a certain extent, one and the same) could
find any beauty in the styling. I think it's the elephantine side panels which
really repulse me. All they do is Mi|M>changing from main to reWrve a five
minute exercise involving splut tering to a halt by the kerb, heaving the beast
onto its stand, fumbling the side panel screw , v off to get at the tap, then
reversing the whole procedure before setting off again. They also a^*.
hide Taglioni's masterpiece, the Pantah engine.

When Taglioni designed the Pantah he adhered to the prin
ciple of the V-twin and man aged to produce a compact, powerful engine; compact
because of the short, 58mm stroke, with width kept to a minimum due to the belt
camshaft drive. The bigger vees use " a bevel gear system to drive the desmo
valve* which is bulky as well as complicated. The Pantah has two Uniroyal
PowerGrip toothed-rubber belts driven from two pulleys sited on the extreme
right of a cross shaft located in the crotch of the vee which, in turn, is
driven off a helical gear keyed to the crankshaft. Powerful, both because of the
60degree valve angle which has been a feature of racing Dukes since Imola in
1973, and, more importantly, because of the desmodromic valve system. By using
cam lobes and lockers to close as well as open the valves, a sharper opening
speed is possible, improving midrange torque, while valve bounce and float are
prevented, making sustained high revs, thus greater power, possible. In fact,
although red-lined at 9000rpm, the engine is probably safe to 12,000 revs.
Apart from detail changes such as different lugs and mounting
brackets, the TL frame is identical to the SL. Two pairs of parallel tubes
running from the steering head meet a similar pair from the crank case rear
behind the rear cylinder. The whole construction is extensively braced, making
it light but rigid. Rake and trail are unchanged at 30 degrees and 5.1 inches,
as is the wheelbase at just over 57 inches.
You'd think that with such similar dimensions, the handling and road holding
would be identical. Not so. For starters, the riding positions are totally
different. The SL's is a pure racing crouch, with all the rider contact points
where you want them to be for precise control at high speed. This is fine for
arcing through a series of bends but a real drag in town, where your wrists soon
start to ache. The TL, on the other hand, has a classic touring position. The
handlebars are wide and slightly swept back, while the footrests have been
brought forward on alloy hangers: real sit-up-and-beg stuff. Swinging through
lines of traffic is the TL's forte, with the rear Brembo giving excellent
control, and the clutch, cable-operated now rather than hydraulic, much lighter,
though still not up to Japanese standards. What was a problem was the lack of
steering lock carried over from the SL. Without clip-ons and a frame-mounted
fairing, the TL could easily have coped with 20 degrees more movement.
Out on the open road the roles are somewhat reversed. Above lOOmph the SL
comes into its own. Impeccably stable, it can be aimed into corners with
scalpel-like precision, the fairing leaving you in a bubble of still air to
concentrate on riding fast. The TL, on the other hand, is far more suited to
slower work. The steering isn't any quicker than the SL but the wide bars give
it a lighter feel and allow you to muscle the bike onto another
line through a bend, something almost impossible on the SL.
However, you do pay a price for this ability at about 90mph the TL will begin to
feel unstable, wobbling slightly due to the handlebar fairing which,
incidentally, is surprisingly efficient — and to the position of the bars taking
some of the rider's weight off the front end.
With the TL billed as a touring bike, Ducati had even less
excuse for the rocky ride than on the SL. The Marzocchis on the rear (most of
the future bikes will have Paolis) were firm, as normal, but when combined with
an almost non-existent seat they became quite painful. Hopefully the sorbothane
(as seen on RG500s) being inserted by Vecchia should cure the problem. Without
the rider's weight bearing down on them, the over-sprung and under-damped Paolis
at the front would rather shake the bike's head than ride out bumpy corners,
which meant that any scratching had to be performed with white knuckles. But
scratch it would, with excellent ground clearance, the Brembos hauling you up
with customary ease, and the Michelins gripping tenaciously.
Sharing the same gearing as the SL, the TL felt remarkably
lazy pulling 70mph at only 5000rpm in top, and the first three speeds in gears
of 50mph in 1 st, 80mph in 2nd, and 95mph in 3rd, at lOOOrevs, promised great
things. But performance tailed off dramatically in the top two gears: 4th was
only good for llOmph at 95OOrpm, and any attempt to change up for more speed saw
the revs drop off to 7800rpm in top. With the same problem due to high gearing
as the SL, the TL accentuates it because of its less efficient aerodynamics,
making it a stronger case still for lower gearing. The gearbox itself is a
three-dog number which, although more prone to finding false neutrals,
especially on downchanges, is more robust than the earlier six-dog version.
Ducati is slowly getting its act together as far as
ancillaries are concerned, but have some way to go. The paint job was up to the
usual Italian standard. Around the fuel filler the petrol had lifted the paint
as if it were brake fluid. You needed four keys for the bike, with the seat
keyhole virtually inaccessible because of the grab rail, and as for those side
panels .. . However, the switches are easy to use and reliable, the mirrors are
excellent, and the instruments are clear and accurate, so all is not lost.Is it
worth it? Yes, I think so, as an alternative to comparable bikes (VF500F £2550,
GSX55OES £2199, BMW R65 £2660), the TL is a viable alternative. And it gives the
Ducatisti a chance to own a Pantah and have sufficient dosh left over to make it
into something special. Perhaps a 650 Cagiva
Source Bike Magazine of 1983
