1977 The new bike, called Six Days, arrived in 1977, also thanks to Italo Forni’s crossing experience, he suggested radical changes which brought to an effective quality leap.
The main aesthetical features of the Six-Days were a new aluminium tank, an exhaust with the expansion passing above the cylinder (with cut winglet to save room) and a built-in plastic light holder.
The complete restyling of the Off-Road model gave birth to a much more modern bike, which was actually able to face a competition.
Its main technical features can be summarized as follows: a double cradle frame closed into steel tubes, with a single cylinder two-stroke engine, head and cylinder with a light alloy, cast iron cylinder liner, four decanting distribution (like in the previous model).
Thanks to the increased compression from 12.4 to 14.6:1 and the new sky lightly conic piston, to improve combustion, released a 25 cc power at 10.250 rounds.
The bore and the race (54x54) remained unchanged, while the timing diagram and the spark advanced underwent a revision.
32 mm carburettor by Dell’Orto, electronical ignition by Motoplat, clutch with multiple discs deepened in oil, six gears.
The connecting rod was strengthened and the bell clutch helicoidally notched was lightened, these were meaningful improvements.
Also the features were at high levels, like forks by Marzocchi with magnesium rafts and 35 mm stems and the shock absorbers by Marzocchi too, gas fuelled on the back.
Conic 140 mm hubs by Grimeca light alloy circles, front wheel 3.00x21” and back 4.00x18”.
The beautiful aluminium chainguard crankcase of the off-road model was replaced by a more essential version, with a white plastic material, like the one of the mudguards.