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1991 Ducati 907 I.E. Desmo: Specifications, History and Ownership Notes

The 1991 Ducati 907 I.E. Desmo brought electronic injection, an alloy swingarm and 17-inch wheels to the final Paso-generation model. Here are its attributed specs and practical documentation and fitment checks.
Entry842 Date Time3 min MechanicCarCody Team
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The 1991 Ducati 907 I.E. Desmo was the last Paso-generation model, replacing the 906 Paso with electronic fuel injection, an alloy swingarm and 17-inch wheels. It paired a 904 cc, liquid-cooled desmodromic V-twin with a six-speed gearbox. It was not officially named “Paso,” though it is commonly treated as the final Paso in the line.

What the 1991 907 I.E. is

Ducati introduced the 907 I.E. in 1991 as the successor to the 906 Paso. MCNews describes it as the final Paso model and reports that production ended in 1992, with just over 2,300 built; that figure is the publication’s reported count, not an independently audited factory total. MCNews’ model history and specifications covers its place in the range. RM Sotheby’s also identifies it as the final Paso version. RM Sotheby’s 1991 907 I.E. listing

The change from the 906 was more than a name update. The 907 adopted Weber-Marelli electronic fuel injection adapted from the 851, an alloy swingarm and 17-inch wheels instead of the earlier 16-inch wheels. Those changes distinguish it mechanically and in wheel-and-tire fitment; do not assume a 906 specification or part number applies to a 907.

1991 Ducati 907 I.E. specifications

The figures below are attributed to the cited source because period and later references do not agree on every specification. MCNews reports the following specification set:

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Item Reported specification
Engine 904 cc, liquid-cooled 90-degree L-twin; two valves per cylinder, desmodromic valve actuation and belt-driven cams
Fuel and ignition Weber-Marelli IAW 043 electronic fuel injection with integrated ignition
Bore × stroke 92 × 68 mm
Compression ratio 9.2:1
Claimed power 90 hp at 8,500 rpm, as reported by MCNews; other published sources give different figures
Transmission and final drive Six-speed gearbox, chain final drive and dry multi-plate clutch
Wheels and listed tires 17-inch wheels; 120/70-17 front and 170/60-17 rear
Wheelbase 1,490 mm
Seat height 780 mm
Dry weight 215 kg
Fuel capacity 21 litres

MCNews is the source for the specifications in this table. Read the MCNews 907 I.E. specifications. Ducati’s 1991–92 technical characteristics document also lists the 92 × 68 mm bore and stroke, 9.2:1 compression ratio and 21-litre capacity. Ducati 1991–92 technical characteristics document

Power, capacity and mass figures should be kept tied to their source. A July 1992 PROFECO period test gives a 17.5-litre capacity and different power and weight values; it is a report from that test, not a definitive correction of the other specification set. PROFECO’s July 1992 test

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What changed from the 906 Paso

  • Fueling: The 907 uses Weber-Marelli electronic fuel injection rather than the earlier model’s carburetion. MCNews describes the injection system as adapted from the 851.
  • Wheels: The 907 moved to 17-inch wheels from the 906’s 16-inch wheels. This affects tire availability and fitment, so use the dimensions and clearances for the actual motorcycle rather than assuming an earlier Paso tire fits.
  • Swingarm: The 907 received an alloy swingarm.
  • Engine: Both models sit within the Paso family, but verify engine-specific service information and replacement parts against the 907 I.E. rather than relying on a 906 manual alone.

MCNews discusses the model changes and their handling context in its 907 I.E. history. MCNews on the 907 I.E.

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Manuals, parts and fitment checks

Find documentation that actually covers the 907 I.E.

DucatiPaso.org’s technical FAQ points to a 907 I.E. owner’s manual, a workshop manual described as a supplement to the 906 workshop manual, a parts catalogue, a color wiring diagram and troubleshooting notes. These are community resource references, not proof that every document is an original factory publication or applies to every year and market. Check the document’s title, revision and model coverage before using it for a service procedure. DucatiPaso.org’s handbook and technical-resource discussion

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Check year and part number before ordering

A genuine-parts catalogue page includes 907 I.E. diagrams and identifies a front brake system as model 1991, although the page is organized under 1992. Match the motorcycle’s year and the exact part number, and confirm the fitment with the seller or catalogue before ordering. Bike-Parts-Ducati 907 I.E. catalogue

Verify tires on the individual motorcycle

The listed sizes are 120/70-17 front and 170/60-17 rear in MCNews’ specification set. A size alone does not establish whether a particular modern tire is suitable: check construction, load and speed ratings, rim compatibility, clearance and the motorcycle’s documentation. Confirm fitment for the specific bike rather than treating a search result for a “120/70-17 front motorcycle tire” as a recommendation.

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What to verify when buying or maintaining one

  • Confirm the model and year from the motorcycle’s identifying details and its paperwork; do not infer fitment solely from a catalogue’s category heading.
  • Ask for maintenance records and documentation, especially any manual or supplement used for prior work.
  • Check that any replacement part is listed for the 907 I.E. and matches the required part number.
  • For tires, verify the complete specification and physical fit rather than relying on the nominal size alone.
  • Compare claimed output, tank capacity or weight only when the source and measurement context are clear; published figures are not fully consistent.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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