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Zero

   

Cagiva Aletta Oro S1 125

 

 

 

 

Make Model

Cagiva Aletta Oro S2 125

Year

1985

Engine

Single cylinder. two stroke

Capacity

125
Bore x Stroke 56 x 50.6 mm
Compression Ratio 10.9:1

Induction

Single  28 Dell'Orto PHBH BD

Ignition  /  Starting

Electronic  /  electric
Clutch Multi-disc oil bath

Max Power

23.6 hp @ 9100 rpm

Max Torque

1.8 kgf-m @ 8000 rpm

Transmission  /  Drive

6 Speed  /  chain
Frame Tubular duplex cradle

Front Suspension

Telescopic Marzocchi 35mm non-adjustable forks

Rear Suspension

Alloy single Marzocchi  shock soft damp

Front Brakes

2x 220mm discs

Rear Brakes

Single 220mm disc

Front Tyre

100/90 -16

Rear Tyre

100/90 -18

Dry Weight

123 kg

Fuel Capacity 

22 Litres

Presented at the Bologna Motor Show in December 1984 and sold shortly after the Cagiva 125 GP S1 incorporates a historic designation: Aletta was a famous 125 built in the sixties by then Cagiva Harley-Davidson and Gold Wing was the fastest single-cylinder Varese intended for private pilots. The Golden Fin thus provides a motorcycle style and advanced features that clearly show the will superstructure 'of the house from Varese to propose measures to be 125 with a medium capacity. Where the various AS-R NS-F and RV have difficulties 'to hide their appearance from motion-read, the S1 has little presence and size, indicative of the effective displacement and, in fact, more' than anything else found one eye carefully written and 125! Unfortunate that despite the big line, although the valid cycle, reveals the true displacement vane Gold for driving experience more 'mature and average engine, we must' wait Gilera KZ 1986. Technically, the S1 is also equipped with less competition, can not boast either the exhaust valve or an electric starter.

The S1 and S2 were not his descendant of the great commercial success, although for those Cagiva piu'avanti would arrive shortly with the next arrow and Myth.

Price in 1985: 3,979,100 Lira

Colors: Red / Grey Metallic.

The bike soon

The generous sizing of all components, fully stretched out toward the front lines, the rounded and excellent proportions, give the S1 a remarkable sense of unity and momentum of solidita'tipica cilidrata greater. The housing and the overall level of finishes are consistent with the high price.

The sides, pressure mounted, concealed in the battery right and left air filter. On the right side of the hull is a door giving access to the cap for the radiator and water pump, rear brake, curiously located in posiozione elevated on the right side. The seat protected by a removable lock located on the tail, hiding the front tank for mixing oil and a cosmetic bag for tools, while in the back just below the tail, is a handy compartment space-objects.

The instrumentation Sleep Borletti, although it looks very orderly, and 'complete and easily readable even at night. The equipment is' very complete and in addition to contakm (also graduated in mph), tachometer, termomentro water and a large battery of lights, also boasts the first fruits of a digital gear indicator light and a fuel level. The electric controls are the classic and well made CEV period and commonly used in other bikes.

Ciclisitca

The frame follows technical trends typical of the mid '80s and therefore, here is the structure of double-cradle tubular steel panels abbianata a classic steel swingarm. The front there is a telescopic hydraulic fork with 35mm Marzocchi antidive device adjustable to three positions, while rear there is always a shock absorber adjustable in spring preload and Marzocchi called by Cagiva "Soft Damp". The braking system and 'a very valuable Brembo Gold Series, with the front of a pair of 220mm floating discs served by fixed-piston caliper and the rear a 220mm floating disc ever and ever served by dual-piston fixed caliper . The alloy wheels have smaller three-spoke 'contained and betray the true displacement of S1: 90/100x16 to' front and 100/90x18 rear.

Engine

Derivation of motocross, the engine of Cagiva Aletta Oro, although powerful, does not give much technical solutions of the moment. Provided admission laminated into the cylinder, with up to 10 lights, automatic mixer and cooled forced circulation, the engine of the S1 'rather devoid of anti-vibration countershaft, electric goodwill (even demand) and, more' serious exhaust valve. As known, the exhaust valve not only serves a marketing function, but rather 'has the important task of changing the timing of the discharge depending on the number of laps, and then allowing the adoption of suitable distribution diagrams to seek maximum performance at high speeds without compromising the shot low and medium rpm. From this point of view, the S1 sins clearly, since the adoption of a cylinder particularly encouraged to stay competitive with the competition has negatively affected the delivery at low and medium rpm, where holes are evident annoying delivery. 7000giri exceeded, the engine runs very well and pulls strong until almost 9000giri, but the rev range and is diminished to the detriment of the quality 'of driving.

With regard to performance, S1, despite the problems mentioned above, does not behave quite badly and with a maximum power to the wheel to 21.01cv 8750giri is the most 'powerful of its direct competitors AS-R NS-F and RV, and second only to the AS-R in terms of speed 'principle with 139.700 km / h (140.300 mph for the AS-R). On the other hand, evidence of recovery in the 400 meters to 50km / h show very well the lack of tractability 'of the engine, the S1 recorded the worst result of the class a time of 23.035 sec and a velocity' output of only 76.590 km / h (19.157 seconds and 104.046 km / h, the leader AS-R)

Datasheet

Dimensions

Length: 2055mm
Handlebar width: 695mm
Seat height: 795mm
Dry weight: 124 kg

Engine
Engine type: 2 stroke single cylinder Cagiva

Cooling: Liquid with forced circulation
Displacement: 124.63 cc
Bore: 56mm
Stroke: 50.6 mm

Via 125stradali.com

 

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