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Allround · 1954

Golden Flash

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MotoLibrary Score
41 /100 Commuter
Power/Weight
0.18 hp/kg
Engine
646 ccm

1954 BSA Golden Flash Key Specifications & Summary

The 1954 BSA Golden Flash is a allround motorcycle manufactured by BSA, equipped with a 646.0 ccm (39.42 cubic inches) displacement unit (Twin, four-stroke) with air cooling. In factory trim, the engine delivers a rated power of 35.0 HP (25.5 kW)) @ 4500 RPM and chain (final drive) final drive.

For rider ergonomics and real-world handling, key chassis measurements include a dry weight of 190.0 kg (418.9 pounds), fuel capacity of 19.00 litres (5.02 US gallons). Review the complete factory specification tables below to evaluate engine internals, suspension travel, braking hardware, tyre sizes and ownership estimates, or compare the 1954 BSA Golden Flash side by side against rival models in the Allround lineup.

Engine
Displacement 646.0 ccm (39.42 cubic inches)
Engine Type Twin, four-stroke
Engine Details Twin, four-stroke
Power 35.0 HP (25.5 kW)) @ 4500 RPM
Bore x Stroke 70.0 x 84.0 mm (2.8 x 3.3 inches)
Fuel System Carburettor
Cooling Air
Transmission
Final Drive Chain (final drive)
Chassis
Frame Type Single cradle
Front Suspension Hydralic telescopic forks
Rear Suspension Twin shock
Wheels & Brakes
Front Tyre 3.25-19
Rear Tyre 3.25-19
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 190.0 kg (418.9 pounds)
Power/Weight 0.1842 HP/kg
Overall Length 2130 mm (83.9 inches)
Fuel Capacity 19.00 litres (5.02 US gallons)
More from BSA
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.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🌍
Best For
All-Round & Adventure
⚖️
Handling
Medium weight — some experience needed
100 ? 600 : hp > 50 ? 400 : 250; return Math.round(base + (this.km / 10000) * 150); }, get insuranceCost() { const hp = 35; return Math.round(hp > 100 ? 800 : hp > 50 ? 500 : 300); }, get total() { return this.fuelCost + this.maintenanceCost + this.insuranceCost; }, get monthly() { return Math.round(this.total / 12); } }">
Estimate

Ownership Cost Calculator

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🔧 Maintenance
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TOTAL

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

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