Ducati 125 Regolarita

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Ducati-125-Regolarita.jpg
Ducati 125 Regolarita
Manufacturer
Production 3486 units
Engine
Two stroke, single cylinder, piston port
Compression ratio 10.5:1
Top Speed 119 km/h / 74 mph
Ignition 6V 75W flywheel magneto
Battery 6V, 7Ah
Transmission 6-Speed
Suspension Front: Telescopic fork
Rear: Swingarm, dual chocks
Brakes Front: Drum, 125 mm
Rear: Drum, 140 mm
Front Tire 3.00 x 21, Metzeler Six Days
Rear Tire 3.75 x 18, Metzeler Six Days
Wheelbase 1420 mm / 55.9 in
Weight 108 kg / 238 lbs (dry),
Fuel Capacity 7.3 L / 1.9 Us gal / 1.6 Imp gal
Manuals Service Manual


It could reach a top speed of 119 km/h / 74 mph.

Engine[edit | edit source]

The engine was a Air cooled cooled Two stroke, single cylinder, piston port. The engine featured a 10.5:1 compression ratio.

Drive[edit | edit source]

Power was moderated via the Wet, multiplate.

Chassis[edit | edit source]

It came with a 3.00 x 21, Metzeler Six Days front tire and a 3.75 x 18, Metzeler Six Days rear tire. Stopping was achieved via Drum, 125 mm in the front and a Drum, 140 mm in the rear. The front suspension was a Telescopic fork while the rear was equipped with a Swingarm, dual chocks. The 125 Regolarita was fitted with a 7.3 L / 1.9 Us gal / 1.6 Imp gal fuel tank. The bike weighed just 108 kg / 238 lbs. The wheelbase was 1420 mm / 55.9 in long.

Photos[edit | edit source]

Ducati 125 Regolarita Ducati 125 Regolarita Ducati 125 Regolarita

Overview[edit | edit source]

Ducati 125 Regolarita








There was a point in Ducati’s history when everything wasn’t so hunky-dory for the Italian automaker. Back in the 70’s, Ducati was in the middle of one of the worst stretches in its history, having failed to catch on to the 250-, 350-, and 450-cc markets. Nevertheless, Ducati soldiered on, and from 1975-1977, they were able to build a bike - the 125 Regolarita Six Days - that ended up being one of the rarest Ducati models in history. The scarcity of this bike doesn’t have anything to do with the modest power train - a 124 cc two-stroke single engine that’s mated to a six-speed transmission - nor does it have anything to do with the relatively heavy frame either (it weighs 238 lbs!). People are going crazy for this model today because the bike was cancelled relatively early in its production cycle, making it one of the most difficult bikes to get a hold of. The bike had an expected auction price of €3,500 - €4,500, which is around $4,500 - $5,800 based on current exchange rates, when it went up for auction at the 2012 RM Auctions in Monaco. Actual selling price was $8,333.

Make Model Ducati 125 Regolarita
Year 1975-79
Production 3486 units
Engine Type Two stroke, single cylinder, piston port
Displacement 123.7 cc / 7.5 cu in
Bore X Stroke 54 x 54 mm
Compression 10.5:1
Cooling System Air cooled
Induction Dell'Orto PHB30 carburetor
Ignition 6V 75W flywheel magneto
Battery 6V, 7Ah
Starting Kick
Max Power 16.3 kW / 21.8 hp
Clutch Wet, multiplate
Transmission 6-Speed
Final Drive Chain
Front Suspension Telescopic fork
Rear Suspension Swingarm, dual chocks
Front Brakes Drum, 125 mm
Rear Brakes Drum, 140 mm
Front Tire 3.00 x 21, Metzeler Six Days
Rear Tire 3.75 x 18, Metzeler Six Days
Dimensions Length: 2160 mm / 85.0 in Width: 920 mm / 36.2 in
Wheelbase 1420 mm / 55.9 in
Dry Weight 108 kg / 238 lbs
Fuel Capacity 7.3 L / 1.9 Us gal / 1.6 Imp gal
Top Speed 119 km/h / 74 mph