Benelli 354 Sport II

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Benelli 354
Also called 354 Sport, 354 Sport II, 354 T
Production 1980 - 85
Four stroke, transverse four cylinder
Compression ratio 10.4:1
Top Speed 160 km/h / 99 mph
Ignition Battery powered
Transmission 5 Speed
Suspension Front: Telescopic forks
Rear: Singling arm, adjustable shocks
Brakes Front: Double discs
Rear: Single disc
Front Tire 3.00-18
Rear Tire 3.25-18
Fuel Capacity 15.5 liters / 4.1 US gal
Manuals Service Manual

It could reach a top speed of 160 km/h / 99 mph.

Engine[edit | edit source]

The engine was a Air cooled cooled Four stroke, transverse four cylinder. The engine featured a 10.4:1 compression ratio.

Chassis[edit | edit source]

It came with a 3.00-18 front tire and a 3.25-18 rear tire. Stopping was achieved via Double discs in the front and a Single disc in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Singling arm, adjustable shocks. The 354 Sport II was fitted with a 15.5 liters / 4.1 US gal fuel tank.

Photos[edit | edit source]

Benelli 354 Benelli 354 Benelli 354

Overview[edit | edit source]

Benelli 354 Sport II

Three Italian 350s: Ducati, Benelli & Morini

What do you call an assortment of three lively Latin classics? Russ Gannicott compares and contrasts the various components of his Red-Eye collection...

A bit corny, I know, but 'red-eye' seemed an amusing title for a mini collection of red Italian bikes, all with names ending in the letter 'i'. Mmm, must be my infantile sense of humour! There are some I could add to the collection, and in time might, like; Garelli, Testi and Motobi. Some I might not, the Guzzi V35 to mention one! However, the fact is that I have three 350s spanning a ten year period of development of the Italian bike industry. It's an interesting starting point from which to make some comparisons. Proof that there is more to making red paint than you might think...

A bit of basic history about the specific bikes first. The Ducati is a 350 Mk3 with a small-time race history. It was built from a 1974 French imported road bike for short circuit racing in this country, and as such was campaigned in a soft state of tune with some vigour during the 1980s and early 90s. The bike is equipped with period NCR single seat, alloy tank and works rearsets. The tuning is restricted to the top end of the engine, with the exception of the total loss ignition system which facilitates the removal of the alternator. This gives a little extra zip at the bottom end of the power band but makes night riding interesting, to say the least!

The Moto Morini 3½ Sport is a 1978 model which means it has Grimeca cast alloy wheels and single disc front brake as standard. The bike is in original condition and was purchased from Mick Phillips of Bike magazine just prior to Mick moving to Italy. The only modifications from standard are a Tarrozzi fork brace and Tarrozzi rearsets which, at six feet tall, I found were necessary to prevent me from adopting the classic 'Italian Monkey' riding position -- which just looks damn silly if you catch sight of yourself in a shop window!

It was a bit of an accident buying the Benelli. To be truthful, I was looking for a rough 354 that I could build into a race replica for use on parades and track days and had ignored a couple I'd found on the grounds of them being too good to rip apart. However, when a 1981 354 Sport raised its head on eBay a little while ago, it didn't just look too good, it looked SO good that I immediately scrapped my plan for a race rep and set out on what I thought would be the hopeless task of winning the bidding for this little gem.

The description sounded really good but the photo was a tad fuzzy so I knew some bidders would be put off. I put my usual eBay strategy into action and immediately contacted the seller and got as much detail and information on the bike as possible. This approach also gives you a pretty good idea of what the current owner is like and how they may have treated the bike during their ownership of it. I was bidding blind for the bike and only had these facts to go on so I set myself a modest limit and kept my fingers crossed. I deliberately made myself keep away from eBay until the auction ended as I knew I'd break my own rules and increase my bid if I wasn't winning.

I was amazed when I discovered I'd won the bike… I guess others were put off by the dodgy photo! When it turned up a few days later, the guy who delivered it turned out to be another bidder on it but failed to get his higher bid placed in time as he had to work that evening. Phew. Lucky or what? The bike turned out to be an immaculate, very low mileage example which had never seen a wet road in its life. Since owning the Benelli I've been approached by several people who saw it on eBay and have since seen it in the flesh, who have offered me best part of a grand more than I paid for it!

These three bikes represent very different eras in Italian motorcycle development; the Duke was the final incarnation of a tried and tested format that had its roots in the late Fifties and as such was somewhat outmoded by 1974. The Morini was a truly innovative machine, with its 72-degree V twin and heron head design which was 'mid development' by the time my '78 model came off the line. Finally, the Benelli was a last ditch attempt by a flagging industry to try and beat the Japs at their own game. As part of the DeTomasso group the Benelli four cylinder engines were built by Moto Guzzi and borrowed more than a little in design from their Honda counterparts.

Like all Italian bikes these three suffer from dodgy electrics although the Benelli is probably the best in that department. The Duke basically has little or no wiring now so that's not a great problem. Morini however must have been aware of this failing and whilst fitting their bikes with an electrically operated solenoid fuel tap they at least backed it up with a manual reserve. Nice one Morini!

We won't even mention the Morini's infamous electric start which is just so much dead weight scrap metal which you take for a ride with you. Thank God it's got a kickstart!

The finish on all the bikes is best summed up as being functional. The Duke's OK due to its extensive rebuild but the Morini is original and the paint is looking a little tired as it was remarkably thin when it left the factory and appears not to have an undercoat. At least the mudguards are stainless so 'dodgy Italian chrome' is not too great a problem on this bike. Benelli followed the new and somewhat trendy route of the early Eighties by cutting down on chrome in favor of satin black where possible, so at least that can be retouched when necessary.

Impressions on the road are pleasing for all the bikes, the most obvious being that they enjoy unparalleled road-holding characteristics for their respective eras. Despite being overweight and underpowered the Benelli corners like a dream and feels very sure-footed, with no obvious vices. To be honest, you can't really go fast enough to get into trouble.

As expected, the Ducati in its light race trim is a harsh ride and has the ability to scare the rider easily. Owing to its lightness it's hard to keep on line through a bumpy bend. There have been several occasions when I've been glad that it only has a drum front brake as I've instinctively gone to grab a handful of it with the thought; 'I'm gonna lose it, I'm gonna crash!' screaming in my head. Just when you think you've pushed it too far, the little Duke will pull you through with just a hint of a warning of what might happen if you forget to respect it.

On the other hand, the Morini never fails to amaze me, or some of the modern sports bike riders I've tagged along with. I truly believe this is the best handling bike I've ever ridden. It has no vices whatsoever, can be totally abused and is a far better bike than I am a rider. The only shortcoming I found was that it would occasionally shake its head a little if I had to roll the throttle off on a fast corner. This has been cured by fitting a Tarrozzi fork brace and renewing the steering damper. The bike will now do whatever you ask of it without complaint -- but once again you have to respect it. I guess that if it ever does let go on me it will be big time!

In terms of direct comparison, the results are quite interesting. The fastest bike is without doubt the Morini with its top speed of just over the ton, whilst the other two will only manage about ninety. In the Duke's case this is due to the gearing, in the Benelli's it's just a lack of power. The quickest accelerating up to about sixty is the Duke, once again because of the gearing. Needless to say the Benelli stops best despite its weight, thanks to the three discs. The Ducati's brakes may not be great, but it's the kind of bike you want to ride on the throttle rather than the anchors anyway.

Road-holding is very good on all three bikes and there is nothing in the handling to give away the fact that the Duke has a stressed member, single tube set-up compared with the semi-duplex frames of the other two. For comfort the Benelli is outstanding, whilst for discomfort the Ducati takes the medal. Any ride on the Duke will necessitate a post-ride nut tightening session, with longer journeys frequently needing some back up to collect the bits that drop off! As previously mentioned, the Morini benefits from its rearsets and the surprisingly soft suspension gives a stress-free ride.

Make Model Benelli 354 Sport II
Year 1980 - 85
Engine Type Four stroke, transverse four cylinder
Displacement 345.5 cc / 21.1 cu in
Bore X Stroke 50 x 44 mm
Compression 10.4:1
Cooling System Air cooled
Induction 4 x Dell'Orto 20mm Ø carburetors
Ignition Battery powered
Starting Electric
Max Power 28.3 kW / 38 hp @ 10200 rpm
Transmission 5 Speed
Final Drive Chain
Front Suspension Telescopic forks
Rear Suspension Singling arm, adjustable shocks
Front Brakes Double discs
Rear Brakes Single disc
Front Tire 3.00-18
Rear Tire 3.25-18
Dry Weight / 168 kg / 370 lbs
Wet Weight / 181 kg / 399 lbs
Fuel Capacity 15.5 liters / 4.1 US gal
Consumption Average 5.1 L/100 km / 19.6 km/l / 46 US mpg
Standing ¼ Mile 16.3 sec
Top Speed 160 km/h / 99 mph
Reveiw Russ Gannicott, Real Classic

External Links[edit | edit source]