Ducati Diana
The Ducati Diana 250 was a high-performance single-cylinder motorcycle that dominated its class in the 1960s. Known for its advanced bevel-drive engine and impressive speed, it remains a sought-after classic Italian bike for enthusiasts.
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3 listed in the past year. The last was 8 weeks ago.
Listings
The Ducati Diana 250 was introduced in the early 1960s as a high-performance, single-cylinder sport bike. Its 249cc bevel-drive SOHC engine, designed by Fabio Taglioni, made it one of the fastest quarter-liter machines of its time, capable of over 90 mph. In the US, it was marketed as the Diana Mark 3 and saw considerable success in production racing, cementing its reputation for speed and handling.
Collectors prize the Diana for its mechanical ingenuity and historical significance. The intricate bevel-drive valvetrain is a hallmark of early Ducati engineering, and its racing success adds to its desirability. Early models featuring the rounded "jelly mold" fuel tank are particularly sought after for their iconic styling. Finding an original, unmolested example is the goal for many enthusiasts.
Buying Tips
- The bevel-drive engine is complex; listen for excessive gear whine, which can indicate worn or improperly shimmed gears that are costly to fix.
- Check for oil leaks, especially at the cylinder base, crankcase seams, and around the bevel-drive tower.
- Verify engine and frame numbers to confirm originality, as many bikes were raced, crashed, or modified over the years.
- Inspect parts like the fuel tank, exhaust, and carburetor. Original "jelly mold" tanks and Dell'Orto SSI carbs are hard to find and add significant value.
9 Ducati Diana vehicles have been tracked across auctions and listings on Hypercars.
Data sourced from auction results and dealer and private listings, including Bring a Trailer, Cars & Bids, Mecum, RM Sotheby’s and eBay Motors. Updated daily.