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Classic

Benelli 900 Sei

View 1 Benelli 900 Sei listing with its year and sales site.

AIBenelli 900 Sei six-cylinder classic

Benelli

900 Sei

Classic · 906 cc · 80 hp

For sale now1 motorcycle
View the motorcycle
Price range
€24,900 – €24,900
Avg. mileage
4 km
Typical year
1989
This text was partly made with AI and may contain errors.
Market insight

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Typical asking price
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Current prices compared
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Based on asking prices, not final sale prices.

Price trend-53%

Based on price data from 4 of the past 12 months.

Used prices are trending down: the typical asking price is €27,575 lower than in May 2026.

Model family

900 Sei at a glance

Quick reference values. Model year, generation and trim can differ.

View 1 variant

Specifications

1 variant
Displacement
906 cc
Power
80 hp · 59 kW
Torque
80 Nm
Weight
220 kg
Seat height
800 mm
Fuel capacity
22 l
Top speed
200 km/h
Production
1978 – 1989
Category
Classic

Benelli 900 Sei for sale

1 results for Benelli 900 Sei
1results for Benelli 900 Sei
1989 Benelli 900 SEI - Reserved (1/1)

Benelli 900 SEI

Reserved
19894 km

RB SuperbikesFarmsum

MotorOccasion.nlMarktplaats.nl
Comparable models

Also worth considering

Models in the same category and price range to consider alongside the 900 Sei.

Model years

Generations and editions

1 variant

Features and handling differ by generation. Use this overview to find the right version.

  1. Years1978–1989

    900 Sei

    Generation

    This technical reference row for the 900 Sei combines the available catalogue data: 906 cc, 59 kW, 80 hp, 220 kg. It describes the model reference, but does not necessarily distinguish every production or equipment change. Always verify model year, trim and technical values against the individual motorcycle.

    906 cc · 80 hp

About this model

About the Benelli 900 Sei

The Benelli 900 Sei is an Italian inline six produced from 1978 to 1989 as the successor to the 750 Sei. The air-cooled 906 cc transverse six produces around 59 kW (80 hp) at 8,400 rpm and drives the rear wheel through a 5-speed gearbox and chain. It was a flagship project led by Alejandro de Tomaso, designed to position Benelli alongside the Honda CB750 and Kawasaki Z1. Visually it is unmistakable thanks to its six exhausts grouped into two banks of three and its very wide engine.

Today the 900 Sei is a cult-status collector's bike. At around 220 kg dry and with typical 1970s ergonomics it offers a more upright, comfortable seating position than many contemporaries. The riding experience is defined by the smooth, low-vibration six-cylinder note and the broad torque spread; top speed is no longer a selling point, character is. Parts demand specialist knowledge - only a few thousand bikes were built. Closest used-market rivals are other classic sixes such as the Honda CBX 1000 and Kawasaki Z1300.

Category
Classic
Production
1978 – 1989
Power
80 hp
Weight
220 kg
  • Benelli 900 Sei zijaanzicht
  • Benelli 900 Sei tweede aanzicht
  • Benelli 900 Sei 1983 Barber museum
  • Benelli 900 Sei Sport variant
Before you buy

What to check before buying

  • Ask for service history from a Sei-specialist mechanic - expertise is scarce and parts rare

  • Check all six carburettors for synchronisation and leaks; tuning takes experience

  • Inspect the six exhausts and welds for corrosion - the original exhaust set is hard to replace

  • Test compression on all six cylinders; old sixes last with regular service but wear unevenly

  • Check completeness: instruments, side panels, original paint codes and registration papers for imported bikes

Frequently asked questions

Frequently asked questions about the Benelli 900 Sei

  1. What does a used Benelli 900 Sei cost?

    A used Benelli 900 Sei costs €24,900 on average. Most cost €24,900 to €24,900. This is based on 1 motorcycle for sale now.

  2. How many used Benelli 900 Sei are for sale?

    MotorMonitor now shows 1 used Benelli 900 Sei motorcycle from Dutch sales sites.

  3. What year and mileage does an average used Benelli 900 Sei have?

    The average used Benelli 900 Sei is from 1989 and has done about 4 km.

  4. How much horsepower does the Benelli 900 Sei have?

    The Benelli 900 Sei produces 79 hp (59 kW).

  5. How much does the Benelli 900 Sei weigh?

    The Benelli 900 Sei weighs about 220 kg.

  6. What is the top speed of the Benelli 900 Sei?

    The top speed of the Benelli 900 Sei is around 200 km/h.

  7. What is the seat height of the Benelli 900 Sei?

    The seat height of the Benelli 900 Sei is about 800 mm.