1971 BSA Rocket 3


BIG CHANGES FOR THE 1971 BSA ROCKET 3
1971 was a watershed year for BSA and Triumph. The Big Twins (BSA A65 and Triumph Bonneville/TR6got all new frames, suspension, brakes, cycle gear and bodywork, a complete redesign with the exception of the engines, which carried over. The Triples got the same treatment, and benefitted from much the same hardware, with the exception of the frames, which also carried over.
Early 1971-model BSA A65sand Rocket 3s came with dove gray frames (above). Not silver, mind you. Dove gray. Some people loved the look (me included), most hated it. It also showed off all those oil leaks. By the end of the 1971 model year, BSA had gone back to a more conventional black frame (below).

1971 BSA Rocket 3 SPECIFICATIONS

Engine type

Displacement

Bore & Stroke

Compression Ratio

Intake Valve dia

Exhaust Valve dia

Carburetors

Bore size

Main Jet size

Needle Jet size

Needle type

Needle position

Throttle Valve

Ignition System

Spark Plug type

Spark Plug gap

Electrical System

Charging System

Primary Drive

Clutch 

Gearbox

Internal ratios

1st Gear

2nd Gear

3rd Gear

4th Gear

Wheelbase

Overall length

Overall width

Overall Height

Ground clearance

Seat Height

Unladen weight

Engine weight, dry

Fuel Capacity

Brakes, F/R

OHV air-cooled inline 3

741cc / 45 cu.in.

62mm X 70mm / 2.67" X 2.751"

9.0:1

38.9mm / 1.53" +/-

33.3mm / 1.31" +/-

3- Amal Type 626 Concentrics

27mm

150

.106

STD

2

3-1/2

Breakers & Coils

3- Champion N3

.020" / .50mm

12 volt DC

Lucas 7CA alternator

Triplex chain

Single-plate, dry, diaphragm-type

4-speed, constant-mesh, sliding dogs


2.47:1

1.71:1

1.26:1

1.00:1

56.25" / 142.875cm

86" / 218.44cm

32.5" / 82.55cm

43.5" / 110.49cm

6.5" / 16.51cm, unladen

32" / 81.28cm

460 lbs / 208.8 kg

180 lbs / 81.72 kg

4.2 US gal / 3.5 Imp gal / 15.94 liters

8" TLS drum / 7" SLS drum


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.



MORE BSA PAGES:
BSA Motorcycles
..... BSA Gold Star
..........1939
..........1953
..........1954
..........1961
..........1962
..... BSA A7 (pre-unit 500)
..........1952
..........1955
..... BSA A10 (pre-unit 650)
..........1951
..........1954
..........1957
..........1958
..... BSA A65 (unit-construction 650)
..........1962
..........1963
..........1964
..........1965
..........1966
..........1967
..........1968
..........1969
..........1970
..........1971
..... BSA Rocket 3 (750 triple)
..........1969
..........1971
..... BSA Bantam


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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