Posts by tag: SEI

Benelli April 3, 2021 posted by

With Papers: 1983 Benelli 900 SEI

Kicking this post off with a provocative statement, I’m not sure the world realized what a tremendous talent we had in the form of Alejandro de Tomaso. While the Italian started life out as a racer (having participated in the echelon of F1), De Tomaso rapidly evolved into a business man with an eye for style. He formed his own car company, and was responsible for such hits as the Pantera and the Mangusta, as well as producing a F1 car for Williams. He acquired names and assets from defunct businesses, eventually owning coachbuilding companies such as Vignale and Ghia (later sold to Ford). His holdings extended across automobile and motorcycle boundaries, at one time controlling Innocenti (producing Lambretta scooters and BMC products under license), Maseratti (later sold to Fiat), Moto Guzzi and Benelli. Which brings us to today’s bike, a 1983 Benelli 900 SEI.

1983 Benelli 900 SEI for sale on eBay

Benelli, under the guidance of De Tomaso, was the first motorcycle manufacturer to put a six cylinder bike into production. That was way back in 1973, with the bones of the 750cc machine containing a lot of Honda four cylinder DNA. And while the six banger was never a huge seller – after all it was a bit exotic and very expensive for the time – Benelli continued to refine it and evolve it through the final year, 1989. In between it grew from 750 to 900cc, and gained poise, polish and reliability. Today these are interesting machines from an engineering perspective, but especially from a styling perspective. These are quintessential Italian style and flair.

From the seller:
This is a 1983 Benelli 900 SEI. The vehicle runs great and is mainly used for auto shows.

Superb example of this rare sport bike. Runs great, sounds awesome. Recent full service (receipt for $6300). Updated levers (have originals). Lots of manuals/product documentation regarding the bike is included. Only selling as I now have 6 bikes and need the room.

Today’s example is a 1983 model in 900cc. It has fewer than 12,000 miles on the clocks, and appears to have a fair bit of documentation and various manuals. This is a plus for a brand which no longer exists in the same manner as it did in the past. While Benelli retains an HQ building in Italy, the brand is wholly owned and all bikes are manufactured by the Qianjiang Group in China. Gone are the big sixes, and gone is some of the hand-built exotic nature of these mighty machines. This was truly the pinnacle of classic Benelli, and we are not likely so see the likes of it again. That is what makes today’s bike special. It is available for auction with a starting big of $17,500, and a Buy It Now number of a cool $22k. Those are big numbers, but this bike carries with it some significant history, and intrinsic rarity. Check out all of the details here, and Good Luck!

MI

With Papers: 1983 Benelli 900 SEI
Benelli October 20, 2020 posted by

Bad to the Bone: 1982 Benelli 900 SEI

One of the most storied motorcycle brands in history is sadly no longer represented in the market. That means if you are interested in an Italian legend, the used market is the only way to go. For it is only on the used market can you find a classic beast such as this 900 SEI. This is a watershed, world-beater design, as Benelli was the first to bring a production six cylinder model to market with the 750cc variant. Let’s dive in!

1982 Benelli 900 SEI for sale on eBay

It is no secret that the SEI owes a great deal to the engineering brilliance of Soichiro Honda. For it was the CB500 four cylinder that was the foundation for the SEI, and the original 750cc model introduced in 1973 was simply a Honda CB500 with a pair of additional cylinders added on. The later bikes – such as today’s 1982 model – were punched out to 900cc, but kept the same basic arrangement. Automotive engineering giant Alejandro de Tomaso drove the project, and the original styling was provided by well-known coachbuilder Ghia. By relocating the bits Honda left handing off of the end of the crankshaft to behind the motor, de Tomaso was able to keep the big six relatively narrow; this is a trend that continues in motorcycle design to this day.

From the seller:
1982 Benelli 900SEI

> run, ride and stop
> new tires, brakes and master cylinders rebuild with new pistons and seals, new wheels bearings, battery, chrome covers and a lot more
> need few touches and finishing
> all parts are available (see photos)

This particular SEI is a bit of an outlier for RSBFS as it is more of a project than a stone-stock standard. That being said, it looks to be quite the beast. The seller has included a pair of videos of the bike in question here as well:

There is little doubt that the rarity of the model overall, the storied history of the manufacturer and the strong, continued collector interest in exotics will continue to drive the price of the SEI. Today’s seller is asking $16,500 for this project bike, a price that is lower than most of the clean SEI examples we have seen over the last couple of years. With the global pandemic showing no signs of abating and with winter coming, now is the perfect time to bring home something that might need a little finishing school. Perhaps this beauty has your name on it already. Check it out here, good luck, and stay safe!!

MI

Benelli September 15, 2020 posted by

Original Six Pack: 1983 Benelli 900 Sei

When Honda introduced the legendary CBX in the late 1970s many people did not realize that they were not the first to ship a production six-cylinder motorcycle. That trophy already went to Benelli, who introduced the original Sei (Italian for the number six) at motoring shows way back in 1973. Given, the original 750cc six cylinder was heavily based on Honda’s 500cc four cylinder with a pair of cylinders added, but it was the Italian manufacturer that beat the world to the six cylinder milestone. Today’s bike is a 900cc model – one of approximately 2,000 – the line having been incrementally improved as production inched along.

1983 Benelli 900 Sei for sale on eBay

This productive time in Benelli’s history can be attributed to DeTomaso’s ownership (which included Moto Guzzi at the same time). Both Benelli and Guzzi thrived in the late 1970s and early 1980s, thanks to the bold and ambitious approach taken by DeTomaso. One need only look at the Sei model run to understand the leadership. Yes the six cylinder had some Honda DNA, but touches such as relocating the alternator from the end of the crank to behind the cylinder bank reduced the width of the engine and made the inline six tolerable from a cornering perspective, was all Italian engineering. The power train was reported to be silky smooth, and styling took many cues from the Moto Guzzi Le Mans model – right down to the sport fairing. However the Sei was certainly the flashier of the two, and at $3,995 it was also more expensive. That $3,995 would not buy you very much today…

From the seller:
Rare in this original condition Benelli 900 sei 6 cylinder Italian super bike Great Original condition Numbers correct sold with clear clean title many up grades I have spent over 3k on reconditioning this bike in the past months ,it is head to toe ready to go !! new ignition system ,carbs rebuilt ,braking system rebuilt , front suspension re done new battery ,oil change and valve adjustment etc

Here is a video of the bike, as supplied by the seller:

Benelli sixes have turned out to be fairly robust, with a look and a sound like no other; time has treated the design fairly well. While nobody would mistake this as a new bike from this century, it continues to look recent and modern enough to stand tall in a parking lot full of plastic. DeTomaso’s ambitious gambled paid off in that respect, although the famed marque of Benelli has failed to remain among the living in terms of recent production. That makes this 900 Sei all the more collectible; in the law of supply and demand, there is no more supply. The seller in this case is asking $16,500 or best offer for this clean 1983 Benelli 900 Sei, which is pretty close to the trending line. Somebody please give this deserving bike a loving home – as this is a classic in the making already made. Check it out and then share your thoughts on this beast. Any Benelli experts able to share things to look for on these models? Good luck, and stay safe!!

MI

Original Six Pack:  1983 Benelli 900 Sei
Benelli March 15, 2017 posted by

Italian Week Continues: 1983 Benelli SEI 900

We seem to be celebrating an Italian theme on RSBFS this week. That is not too surprising, as pound-for-pound the Italians produce more lust-worthy hardware than most. I’m not discounting the ruthless efficiency of German machines, nor the bright spots in the Japanese flood of scooters; however if you tally up the total number of bikes produced by a given nation and identify what makes you drool, one small country stands out above the rest. Why? A unique combination of passion and performance would be the likely answer. Can we name a few brands that we might like to own? The list is long and glorious: Ducati, Bimota, Moto Guzzi, Moto Morini, Cagiva, Laverda, Aprilia and MV Agusta. That doesn’t even count the bespoke builders of dreams: Mondial, Morbidelli or Ghezzi-Brian. Have I missed one? Probably more than a few. Nobody but the Italians are able to artfully blend the focus of performance with visceral good looks and color. Today’s example is this gorgeous Benelli SEI 900.

1983 Benelli SEI 900 for sale on eBay

Look past the miles-deep pool of red paint. Shield your eyes from the sparkle of the chrome. Ignore the mags, the quarter fairing, the set and the stance. Strip everything away and go back to basics. In this case it is a fabulous 900cc inline six banger. The first to release a six cylinder into production – originally a 750 – the Benelli SEI 900 utilized a larger bore & stroke to provide additional motivational might. With a quarter fairing evoking a period Laverda or Moto Guzzi, the SEI was a technological, aural and visual bombshell of the time. Eschewing the 750’s six-into-six exhaust in favor of a six-into-two, the SEI looked more like a normal motorcycle from the side, although from the front it was all but impossible to hide the width. This seller obviously cares about this bike and it’s history, so we’ll let him pick up the story.

From the seller:
There is a good article that says this is probably 1 of approximately 80 Seis 900s imported to the US. “By the end of production in 1989, fewer than 2,000 examples of the 900 Sei had been built; some sources claim no more than 80 of them made it to the U.S. market.” (Motorcycle Classics, May/June 2015).

1983 BENELLI SEI 900
Built June 1982, titled 1983
VIN: ZBNB0AB00DP011261 Engine No: BGB011248

History:

Original owner (name unknown) bought and rode the bike a little over 9000 miles and then parked the bike in his collection. No significant changes were made. In 1987, second owner (Sterling, MA) bought part of the collection including this Sei 900. The second owner was told it did not run so he stored it in a shop intending to restore it, but never rode it. He sold it to me in mid-2014. I cleaned the carbs, etc. and it started!

I did a complete 1 year effort to do a ground up restoration; inspecting and replacing anything needed except one thing: it has the ORIGINAL BODY PAINT!

Mechanically inside this bike looked like new, still crosshatches on cylinders, great compression, good shifting, etc. Fortunately, the tank was very clean. Outside it had some rust on the frame, wheels, and rear drive chain.

Key restoration items include the following:

– Powder coat the frame and wheels
– All new wheel bearings and brake seals/pads
– Replaced the starter gear and shaft and 2 bearings in the transmission
– Honed cylinders and light valve grind
– New seals and gaskets throughout
– New fork tubes and dampers
– Rebuilt carburetors
– 1 new badge (original missing)
– New seat cover, fuel cocks, and rubber parts
– Re-chromed original exhaust system and other chromed parts

Majority of these parts were original Benelli replacement parts bought from Benelli-Bauer GmbH in Germany.

Upgrades not original style parts include:

– New complete electronic ignition system
– New regulator/rectifier system (original alternator like new)
– New rear shocks
– New rear drive chain and sprockets
– New tires and battery
– K & N air cleaners
– Some new stainless steel hardware

It had 9,272 miles on it when I bought it; it has 10,008 miles now.

Runs and rides absolutely GREAT! Starts instantly, although a bit cold blooded (needs a few miles to warm up). Pulls evenly and shifts fine. And yes, it is as smooth as the books and reviews say.

Sure, in comparison to some Japanese, upgraded-spec, chain-saw razor with pipes and slicks, this SEI is a flat dog. If your idea of riding involves pre-mix and a quarter liter of squish band, feel free to look away. But somehow I doubt a true enthusiast can look at this and not be in awe – even a little – at what Benelli has created. Once owned by the legendary DeTomaso namesake, you can be sure that performance (such as it may be defined) exists within. This seller has done a tremendous job on the restoration of this machine, as well as the presentation. There is strong interest in this auction, and I’m sure a new owner will be celebrating the arrival of a dream very soon. If you’re into Benelli (or even if you’ve only just discovered these marvelous machines), act quickly. Very few SEIs came stateside, and very, very few are in this level of condition. Check it out here, and let us know what you think. Viva Italia indeed!

MI

Benelli May 26, 2013 posted by

Six Pack, Brand New ! Benelli Sei 0 miles for 20k Euro (Germany)

Just a few days we’ve introduced the naughty sounding Benelli Sei as opposed to the more common and known Honda CBX 6 cylinder bike. Having six cylinder one after the other one in a straight line, make sure that the forces of of the first and second order are all naturally balanced. These forces are generated by the rotating masses of the crankshaft. The 6 cylinder then, is a very smooth engine and also reliable. It became BMW cars flagship motor until the EU introduced tougher CO2 emission limits that is forcing German OEMs to move toward 4 cylinder smaller capacity engines compensated with twin turbos for higher efficiency. On a motorbike the six inline engine configuration had its technical limits given by the width of the motor and more importantly by the difficulty to cool the inner cylinders in absence of water cooling. They are nevertheless unique, and come with a free revving nature and great sound. The Benelli Sei is in my opinion, the best 6  cylinder out there and I simply love those exhaust mufflers and simple and still modern lines of this 30 years old Italian exotica.

$(KGrHqFHJEQFGS!1YvwyBRn31Isg8!~~60_57

This particular sample is brand new. Not only, it was never driven, it also was never started nor was fuel ever introduced in the tank (no risk of rest then…). It is brand new !

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Do I need to say more ?

Let’s hear it from the seller (translated with Google):

Benelli 750 sei. Built in 1976. Absolute new condition. This bike is never ridden. It was also never petrol in the tank. The brake fluid reservoir is virginal.

The bike comes from the private collection of Alejandro DeTomaso. It was spent directly after production there. It was always there in his museum. I purchased it from there after the bankruptcy. It was packed in a wooden crate and shipped to me in Hamburg. In this crate, it is still intact today. The tool kit is fully available. The rubber mounting the battery is boxed under the seat. A battery was never installed.

A photo shows it in the museum shortly before the sale.

The engine oil is Fills and rotates through tadelos. I started the engine nier. The carburetors have never seen gasoline. Nothing is fixed or rot .. The bench aht a minimal small crack on one edge. The tires are original of 1976.

Vehicle papers are available. For questions 0171-3689837

Please do not tell. I have no internet access at the weekend.

I solve my little car collection now on, so I offer it here.

A nationwide shipping is available. The exact shipping cost would then be determined.

The warranty expired in 1977. Therefore: private sale without any Garatie, warranty or return.

Bidders for fun get to do it with my lawyer!

$(KGrHqUOKpwFGOsYvcy9BRn32eC72g~~60_57

I guess not… Just have aloof at the gallery below and click on the ebay link at the bottom if you’d like to make this yours. The price is set at 19.999 EUR. First come, first served…

$T2eC16ZHJIkE9qU3k6PUBRn30w4)Fg~~60_57

1976 Benelli Sei brand new in Germany

Claudio

P.S. If you have missed the previous post on a Benelli Sei and wish to hear such a machine sounds, just go back a few pages and look for the silver model…

Benelli December 9, 2011 posted by

Six the hard way: 1976 Benelli SEI Down Under!

For Sale: 1976 Benelli SEI in Australia

Some of you might be looking at this fantastic Benelli SEI and think that “SEI” is Italian for “CBX.” You would be close, if not a bit backwards. Before the onslaught of the Japanese, and many years before Honda brought forth the mighty CBX, this Benelli six cylinder machine was the techno wonder to behold. Offering 2 more cylinders than Honda’s flagship CB750 model, the Benelli SEI created an instant sensation in the marketplace. It also spawned some imitation. In addition to the CBX, Kawasaki introduced the KZ1300, a similar cylindered beast with liquid cooling).

With more pipes than your local church organ, the SEI certainly makes a statement. It also makes for a very wide motorcycle. However this Italian “copy + improvement” on Honda’s CB-class of 4 cylinder bikes cleverly placed the alternator behind the cylinders rather than at the end of the crank – which helped reduce the width somewhat. Still there is no doubt that this bike makes a very significant statement.

From the seller:
BENELLI 750 SEI 1976, 100% ORIGINAL IN EXCELLENT CONDITION, OWNED BY MY LATE FATHER AND NOW ONLY RIDEN ON RARE OCCASSIONS. NEVER BEEN DROPPED. BIKE SOUNDS GREAT AND RIDES WELL, NEW K81 TYRES. THIS IS AN UNMOLESTED ITALIAN SUPERBIKE FROM THE 70’S WITH GENUINE 30,000 ODD KLMS. BIKE IS LOCATED ON THE GOLD COAST, AUSTRALIA.

With a reported 3,200 of these machines built (spread between 1972 and 1978), this definitely classifies as a rare bike. Performance is adequate at 76 hp – but not spectacular by today’s numbers. Still the sound of that 6-into-6 exhaust as this 750 shrieks to redline is something I wouldn’t mind hearing inside my helmet.

This bike is located in Queensland, Australia – and as such might be a bit of a distance away from most of our readers. However given all of the rare Ducatis and Bimotas that have been shipped Down Under recently, it would be great to get one back!
This particular bike has a opening ask of $10,000 – which is a big initial ask, but probably not out of line with the value of this rare machine. For more details and pictures, click on the link and jump over to the auction. Good Luck!

MI

Moto Morini August 19, 2011 posted by

Stealth Italian: 1984 Moto Morini 500 Sei V

For Sale: 1984 Moto Morini 500 Sei V

Quick: Name an Italian manufacturer of classic vee-twin sportbikes. Chances are that your first response was Ducati. There might have even been some fringe folks who sprung Moto Guzzi to mind. MV Agusta might have been another Italian guess. But how many of you thought of Moto Morini? I’ll bet not too many, mainly because we don’t see them in the US. When we do, it is usually the 3 1/2 (350cc) Sport.

This Moto Morini is a classy, Italian steed. The 500cc, air cooled vee twin is good for 45-50 horsepower. Componentry on Moto Morini motorcycles is generally considered to be well above average for the period – which made the MM expensive compared to other brands. Ceriani and Marzocchi suspension units were used, rear and front respectively. Borani spoked wheels were used on the initial 350cc bikes, later to be replaced by cast hoops. Grimeca disc brakes were fitted front and rear. Veglia instrumentation was fitted standard. The end result was a very high-spec motorcycle, which continues to be an enjoyable mount to this day.

From the seller:
Untouched, all-original Moto Morini 500 Sei-V…down to its Pirelli tires. V-twin, six-speed transmission. Owned since 1999, last registered in 2002. Performance exhaust, 4,777 miles, Owners Manual.

Only blemishes are slight paint bubbling on bottom of front fender, headers could use a black paint touch-up, tachometer is a little loose in its rubber housing, gas stain beneath carb. bowl on engine case.

Recently photographed for inclusion in an upcoming 2012 European Motorcycle Calendar.

The fate of Moto Morini is a long and varied one. From its family origins in 1937, the company was responsible for some very memorable motorcycles and race bikes. Following financial hardship, MM was sold to Cagiva in the mid 1980s. It changed hands again when it was purchased by the Texas Pacific Group (alongside Ducati) in the 1990s. In 1999 Moto Morini fell back into family hands when it was purchased by a company founded by Morini’s nephew (Morini Franco Motori spa). The hard times continued, however, and that company went into bankrupcy and liquidation in 2010. Is this the end of an icon? There is yet another attempt to pull Moto Morini from the ashes as of July 2011; the company was sold to Eagle Bike, a newly formed company that is run by two Italian entrepreneurs. Keep your fingers crossed for this historic brand – we may see new Moto Morini bikes again yet!

The 500cc version of the pre-Cagiva Moto Morini is relatively rare. As stated at the beginning of this post, one tends to find the smaller (350cc) bikes more readily than the 500cc variant. For example, we have posted several 350s over the years (here, here and here), but only one 500cc machine. Like most Moto Morinis we see, this one is clean and well cared for. Mileage is very low, and in general this looks to be in fantastic condition.

Your chance to own a classic Italian vee-twin sportbike is here! For more information, specifications and pictures, click on the link and jump over to the auction. Good luck!

MI

Benelli August 1, 2011 posted by

Six Shooter: 1988 Benelli 900 Sei Seria 4

For Sale: 1988 Benelli 900 Sei Seria 4

Located in Kiel, Germany is this wonderful Benelli Sei. If one needed any more proof that the Italians have a style all their own, this must surely be it. Six cylinders, six exhaust pipes, miles of chrome and some neat technological tricks, the Benelli was briefly atop the world in terms of technical sophistication – beating even the mighty Honda. Alas production issues and problems with quality ensued, and the oldest motorcycle factory in Europe (established in 1911) was sold off to Moto Guzzi. The fall did not end there, however, as the Benelli name is currently under control of the Chinese Qianjiang Group.

From the seller:
Hallo,

I’m owner of an Benelli 900 Sei of the last build Seria. The cycle is rebuild with new clutch, piston, camshaft, tires, brake and with an special for the 900 Sei 6-6 exhaust-system from “UK-Exhaust. It’s not the 6-6 from the 750 Sei, it’s specialy build only for the 900!!! The origen exhaust-system in black-chrome belongs to the cycle too.

I think, the transportation in container will cost 1.000 Dollar, but I dont know it exactly at this time. I will have a start price for the Benelli with 13.500 Dollar.

The six-cylinder format devised by Benelli – with the alternator placed behind the cylinders rather at the end of the crank – was originally offered in 750cc. Reports indicate that fewer than 2,000 of the 900cc bikes were produced, and far fewer than that of the final model run. Note that this is a 1988 model, the same year the Benelli plants at Pesaro were sold off, and Benelli was absorbed by Moto Guzzi to form Guzzi Benelli Moto S.p.A. This bike is really the end of an era.

The seller has priced the bike at $13,500 – an seemingly large sum for a Sei. And given such little information about the bike (likely due to lack of English language skills), the opening ask is more about the opportunity to find out more. There are some decent pictures from the seller, but buyers interested in this rare piece of motorcycling history will certainly want to request more.

For your chance to inquiry about this unique Italian superbike, click the link and jump over to the auction. And if you find out more information about this rare beast, be sure and check back and let us know. Good Luck!

MI