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Aermacchi Chimera 175
1956Sportbike

Aermacchi Chimera 175

Key specifications

Engine
172 cc
Weight
122 kg
Fuel type
petrol
Transmission
4-speed
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

Introducing the 1956 Aermacchi Chimera 175, a remarkable blend of Italian craftsmanship and spirited performance that defined the sport motorcycle category of its time. Nestled amidst the burgeoning post-war motorcycle market, Aermacchi carved a niche for itself with models that were not just functional but offered an exhilarating ride. The Chimera 175 stands out as a testament to this philosophy, designed for riders who sought an agile, lightweight machine that could tackle both urban streets and winding country roads with style and flair. At the heart of the Chimera 175 lies a robust single-cylinder, four-stroke engine with a displacement of 172 cc, boasting a compression ratio of 7.0:1. This engine delivers a top speed of 110 km/h (68.4 mph), making it an exhilarating choice for spirited rides. The 4-speed gearbox, paired with a wet multiplate clutch, provides seamless gear changes, allowing riders to harness the engine's power effectively. The air-cooled setup ensures reliability, while the Dell'Orto carburettor optimizes fuel delivery for smooth acceleration. With a bore and stroke of 60 x 61 mm, the Chimera 175 not only offers impressive performance but also a distinctive throaty soundtrack that resonates with motorcycle enthusiasts. The technical features of the Chimera 175 are equally impressive, showcasing Aermacchi's commitment to innovation. Its single cradle frame provides a sturdy yet lightweight structure, enhancing maneuverability and stability during rides. The telescopic front suspension absorbs bumps with ease, ensuring a comfortable ride even on less-than-perfect roads. Both the front and rear expanding drum brakes deliver reliable stopping power, instilling confidence in the rider. Weighing in at just 122 kg (269 pounds), the Chimera is agile and easy to handle, making it a perfect choice for both novice and experienced riders alike. The classic kick starter adds a nostalgic touch, reminding riders of an era when simplicity and reliability were paramount. **

Pros

  • Agile Handling: The lightweight design and compact frame make the Chimera 175 easy to maneuver through city traffic and tight corners.
  • Classic Aesthetic: Its vintage styling and Italian craftsmanship draw admiration from enthusiasts and collectors alike, making it a standout piece in any motorcycle collection.
  • Responsive Performance: The engine's power delivery and smooth gearbox contribute to a thrilling riding experience, perfect for both casual rides and spirited outings.

Cons

  • Limited Top Speed: While 110 km/h is respectable for its category, it may not satisfy riders looking for higher-speed performance.
  • Drum Brakes: Though reliable, the drum brake system may not offer the same stopping power or responsiveness as modern disc brakes.
  • Basic Features: As a motorcycle from the 1950s, the Chimera 175 lacks contemporary amenities such as advanced suspension systems and digital instrumentation, which may deter some riders seeking modern conveniences.

Technical details

Source specification data

Make
Aermacchi
Model
Chimera 175
Category
Sport
Starter
Kick
Clutch
Wet multiplate
Gearbox
4-speed
Ignition
Bobine
Top Speed
110.0 km/h (68.4 mph)
Fuel System
Carburettor. DellÓrto
Bore X Stroke
60.0 x 61.0 mm (2.4 x 2.4 inches)
Compression
7.0:1
Displacement
172.00 ccm (10.50 cubic inches)
Cooling System
Air
Engine Details
Single cylinder, four-stroke
Transmission Type Final Drive
Chain
Dry Weight
122.0 kg (269.0 pounds)
Seat
Dual
Wheels
Spoked
Rear Tyre
2.50-17
Frame Type
Single cradle
Front Tyre
2.50-17
Rear Brakes
Expanding brake (drum brake)
Front Brakes
Expanding brake (drum brake)
Front Suspension
Telescopic