Ducati S2 Mille – The ultimate Ducati bevel-drive V-Twin


Ducati S2 Mille

The ultimate bevel V-twin

With Phil Aynsley


Along with its MHR Mille sibling, the S2 Mille was the ultimate model of Ducati’s well-known bevel-drive V-twin produced.

Ducati’s ultimate bevel-drive V-Twin, the S2 Mille

Attributable to confusion on the time of Cagiva’s takeover of Ducati (accomplished in 1985), the precise manufacturing numbers are a bit imprecise however one thing round 1100 to 1250 Milles in whole have been constructed (together with 300 S2s) throughout 1984-86.

The engine was modernised, however manufacturing numbers have been low…

It appears all the hassle that went into modernising the bevel-twin motor went principally to waste with such low manufacturing numbers!

Ducati S2 Mille

Work on the brand new engine was begun in 1984 by Fabio Taglioni and assistant Massimo Bordi with an interim design getting used within the 1984 900 S2 and 900 MHR. The absolutely revised motor entered manufacturing on the finish of 1984.

Ducati S2 Mille
Ducati S2 Mille

The foremost change to the engine was the adoption of a excessive strain oil system and plain-bearing backside finish with one-piece crankshaft – thereby in the end eliminating the greater than sometimes problematic curler bearing big-end.

Capability was additionally boosted with the brand new bore and stroke

Bore and stroke have been each elevated to 88 x 80 mm leading to a capability of 973 cc moderately than the lengthy standing 864 cc of all of the earlier “square-case” 900s.

Ducati S2 Mille
Ducati S2 Mille

Gilnisil coated alloy cylinders and bigger (42 & 38 mm) valves have been used. A a lot smaller and lighter Nippon Denso starter motor was employed along with a brand new hydraulically operated clutch.

Ducati S2 Mille

New engine circumstances accomplished the redesign. Most energy was 76 hp at 6700 rpm, whereas dry weight was 196 kg and high velocity 222 km/h.

Ducati S2 Mille
Ducati S2 Mille

Chassis, working gear (other than longer entrance fork tubes) and paint colors remained the identical because the short-lived 1984 900 variations (the 1983 900 S2 was gunmetal gray). The gear-gazer on the rear cam cowl is a non-standard addition to this 1985 bike.

Ducati S2 Mille

Whereas initially meaning to proceed manufacturing of the bevel-drive V-twins (Massimo Tamburini was commissioned to design a brand new chassis for the Mille motor) Cagiva quickly determined to solely consider the a lot newer belt-driven Pantah motor powered bikes.

Ducati S2 Mille

Vale the bevel-drive!

Ducati S2 Mille
Ducati S2 Mille
Ducati S2 Mille
Ducati S2 Mille
Ducati S2 Mille
Ducati S2 Mille
Ducati S2 Mille
Ducati S2 Mille
Ducati S2 Mille

Ducati S2 Mille Specs

Ducati S2 Mille Specs
Engine 4 stroke, 90° L-twin, SOHC, desmodromic two-valve per cylinder, bevel-gear pushed
Capability 973 cc
Bore x Stroke 88 x 80 mm
Induction Twin 40 mm Dell’Orto PHM carbs
Max Energy 76 hp @ 6700 rpm
Max Torque 84 Nm at 5800 rpm
Gearbox 5-speed
Suspension (F) 38 mm Marzocchi fork
Suspension (R) Marzocchi shocks, preload adjustable
Brakes Twin 280 mm entrance rotors, two-piston calipers, 260 mm rear rotor, single-pot caliper
Tyres 110/90-18, 130/90-18
Size 2200 mm
Width 700 mm
Peak 1250 mm
Wheelbase 1500 mm
Seat Peak 800 mm
Weight (dry) 196 kg
Gasoline Capability 18 L