MotoLibrary MotoLibrary
← Matchless
Sport · 1958

G50

User Rating: /5 · No user ratings yet ✓ Your rating was saved
MotoLibrary Score
45 /100 Balanced
Power/Weight
0.34 hp/kg
Engine
496 ccm

1958 Matchless G50 Technical Analysis & Specification Breakdown

At the heart of the 1958 Matchless G50 sport motorcycle, Matchless utilizes a 496 cc (30.3 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 51 HP (37.2 kW) at 7,200 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 102.8 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the G50 measures 150 kg (331 lbs) dry, translating to a power-to-weight ratio of 0.34 HP/kg (2.94 kg per horsepower).

Within MotoLibrary's Matchless archive, this model family spans 11 indexed model years from 1953 to 1963, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
102.8 HP/L
Power-to-Weight
0.34 HP/kg (2.94 kg/HP)
Engine
Displacement 496.0 ccm (30.27 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 51.0 HP (37.2 kW)) @ 7200 RPM
Fuel System Carburettor
Fuel Control Single Overhead Cams (SOHC)
Cooling Air
Transmission
Final Drive Chain (final drive)
Chassis
Frame Type BSA
Wheels & Brakes
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake). Rigid
Dimensions & Weight
Dry Weight 150.0 kg (330.7 pounds)
Power/Weight 0.3400 HP/kg
Notes

This bike was also called the Golden Eagle.

More from Matchless
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Rider Profile

Who Is This Bike For?

🟡
Intermediate
Requires some riding experience.
🏁
Best For
Sport & Track
⚖️
Handling
Manageable weight for most riders
Estimate

Ownership Cost Calculator

⛽ Fuel
per year
🔧 Maintenance
per year
🛡️ Insurance
per year
TOTAL

* Estimates only. Actual costs vary by country, riding habits, insurance provider and maintenance schedule.

MotoLibrary
🏠 Home 🔍 All Bikes 📂 Categories ⚖️ Compare 🎛️ Advanced Filter 🎯 Bike Finder 🎬 Videos 📰 Blog 📖 Glossary ℹ️ About

🍪 We use cookies for analytics & ads. Cookie Policy