1951 BSA Gold Star

1951 BSA GOLD STAR - WHAT'S IN A NAME?
Of course the origins of the Gold Star name is the stuff of legend. When Wal Handley lapped the Brooklands at over 100 MPH in 1937 on a BSA Empire Star, he was awarded the coveted Gold Star. Anyone who broke "the ton" (100 MPH) in those days got one. BSA was so jazzed about it that they introduced a modified version of the Empire Star with many racing enhancements as the BSA Gold Star starting the following year, 1938. The Gold Star remained in production pretty much as is until 1963. The name was resurrected again in for the unit-construction B50 Gold Stars of 1970-72. During it's earlier life, the BSA Gold Star was a legend, as a highly-competitive dirt bike, desert racer, scrambler, road racer and street bike. It was a best-seller for BSA for years.
1951 BSA GOLD STAR DESIGN
After a brief absence during World War II, the Gold Star returned with its prewar rigid frame. BSA introduced a 348cc version of the Gold Star with a new all-alloy top end that saved 20 pounds over the cast iron unit, designated YB32 in 1948. All were hand-assembled and bench-tested. In 1949, BSA launched the new 499cc ZB34 Gold Star with a new crankshaft & improved main bearings and yet another change in nomenclature, this time to ZB34. In 1950, both the 350 and 500 Gold Stars got bigger front brakes. The plunger rear suspension would be replaced with a swing arm in 1953.

1951 BSA Gold Star SPECIFICATIONS

Model designation

Engine type

Displacement

Bore & Stroke

Compression ratio

Fuel system

Ignition system

Power output

Primary drive

Clutch

Gearbox

Final drive

Suspension, front

Suspension, rear

Brake, front

Brake, rear

Wheel, front

Wheel, rear

Tire, front

Tire, rear

Wheelbase

Seat height

Fuel capacity

Weight

Top speed

1951 B34 Gold Star

Air-cooled OHV single-cylinder 4-stroke

499cc / 30.5 ci

85 mm X 88 mm

8.0:1

1- Amal Monobloc carburetor

Lucas magneto

38 hp @ 7000 rpm

Chain

Multi-plate, wet

4-speed constant-mesh, right-foot shift

Chain

Telescopic fork

Plunger

8" SLS drum

7" SLS drum

WM3 X 19"

WM3 X 19"

3.00" X 19"

3.50" X 19"

56.0" / 1400 mm

30.5" / 770 mm

4.8 US gal / 18 L

384 lbs / 171 kg

110 mph / 177 kmh


A WORK IN PROGRESS
In our efforts to complete our online index, and make this the world's greatest website about classic British motorcycles, we're building pages as fast as we can. The first thing we add are the pictures. Then come the specifications and then the history. So, if you see a page that just has only pictures on it, or just pictures and specs, please check back in a few weeks to see if we have it done. Thanks for your patience. And thanks for visiting Classic-British-Motorcycles.com. Please tell your friends about us.

Check out these BSA BOOKS

BSA - THE COMPLETE STORY


BSA MOTORCYCLES: THE FINAL EVOLUTION


HISTORY OF BSA MOTORCYCLES


BSA: ILLUSTRATED MOTORCYCLE LEGENDS, by Roy Bacon


HOW TO RESTORE YOUR BSA ROCKET 3 & TRIDENT


CHILTON’S BSA MOTORCYCLE REPAIR & TUNE-UP GUIDE


BSA SINGLES 1945-1963 GOLD PORTFOLIO


BSA SINGLES 1964-1974 GOLD PORTFOLIO


BOOK OF THE BSA - OWNERS SHOP MA NUAL, PRE-WAR


BSA 350, 441 & 500 SINGLES, UNIT CONSTRUCTION 1958-1973


BSA CLASSIC MOTORCYCLES


BSA & TRIUMPH TRIPLES: GOLD PORTFOLIO 1968-1976


BSA UNIT SINGLES: COMPLETE STORY


BSA A7 & A10 TWINS, 1957-1962, by Haynes


BSA A50 & A65 TWINS: ALL MODELS


ILLUSTRATED HISTORY OF BSA MOTORCYCLES


BSA TWINS A7 & A10 1946-1962, GOLD PORTFOLIO


THE BSA GOLD STAR


MAINTENANCE MANUAL FOR BSA M20


SECOND BOOK OF THE BSA 500 & 650 TWIN 1962-1969


BSA PRE-UNIT SINGLES WORKSHOP MANUAL, by Haynes


TRIUMPH TRIDENT & BSA ROCKET 3 WORKSHOP MANUAL, by Haynes


BSA BANTAM WORKSHOP MANUAL 1948-1971, by Haynes


BSA UNIT TWINS, THE COMPLETE STORY


BOOK OF BSA SINGLES & V-TWINS 1936-1952


RUPERT RATIO UNIT SINGLE ENGINE MANUAL, BSA & TRIUMPH


RUPER RATIO, EVERYTHING BUT THE ENGINE, BSA & TRIUMPH


BSA A50 & A65 TWINS 1962-1973, Haynes Workshop Manual


BSA GOLD STAR & OTHER SINGLES, by Roy Bacon


BSA MOTORCYCLES SINCE 1950,BR>

BSA UNIT SINGLES OWNERS WORKSHOP MANUAL #127, 1958-1972, by Haynes


BSA TWINS 150 & 165 GOLD PORTFOLIO, by RM Clarke


ILLUSTRATED BSA BUYER’S GUIDE, by Roy Bacon


BSA BANTAM, by Owen Wright


BSA PRE-UNIT TWINS, by Mick Walker


BOOK OF THE BSA OHV & SV SINGLES - 250cc 1954-1970


BSA TWINS & TRIPLES, by Roy Bacon


TRIUMPH & BSA TRIPLES: THE COMPLETE STORY


BOOK OF BSA TWINS, ALL 500 & 650 1948-1962, by Floyd Clymer


BOOK OF THE BSA OHV & SV SINGLES 1945-1954: 250, 350, 500 & 600


BSA BANTAM BIBLE, ALL MODELS 1948-1971


WHERE BSAs DARE: BSA’s 1952 ISDT GOLDS & MAUDES TROPHY


ILLUSTRATED MOTORCYCLE LEGENDS: BSA, by Roy Bacon


BSA BANTAM ESSENTIAL BUYER’S GUIDE


BOOK OF THE BSA BANTAM


BSA 500 & 650 UNIT TWINS, Clymer Repair Manual


BSA COMPETITION HISTORY


BSA MOTOR CYCLING ANNUAL, 1937, Kindle






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