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The Unapproachable Norton

Norton Motorcycles of 1959

Manx 30 & 40, ES2, Dominator 88 & 99, Jubilee, Model 50

DIAMOND JUBILEE OF THE UNAPPROACHABLE NORTON 1959

1958 is Norton's Jubilee Year. Just think of it - sixty years of hard, practical experience and solid achievement goes into the World's Best Road Holder . . . winner of 32 T.T. races and hundreds of other outstanding successes all over the world. To celebrate this remarkable record without parallel in the annals of motor-cycling we proudly introduce the new range of unapproachable Nortons for 1959. Now read on . . .

60 YEARS OF MOTOR-CYCLE HISTORY... Norton leads again - and proudly presents the only British motor-cycle powered by a 250 c.c. Twin-cylinder four-stroke engine, with unit construction gearbox.


THE MOST COLOURFUL NEWCOMER FOR 1959 Now housed in the famous "Featherbed" frame and having road-holding characteristics identical to the racing machines, this 350 c.c. single cylinder model retains all the docility and desirable attributes of its predecessors. The incorporation of A.C. generator and coil ignition still further enhances this lively and economical machine. Note the fully-enclosed rear chain case available as an extra on all models.

NORTON MOTOR CYCLES OF 1959

Norton model ES2 500 c.c. SINGLE

Here is one of Britain's best known and most popular motor-cycles - identical in specification to Model 50 except in engine capacity. As evidence if its serviceability, R.A.C. patrolmen have covered over 100 million miles since the war on similar machines. While retaining all its robustness of construction, its handling is improved by the "Featherbed" frame. The 'Jubilee 250' is a supreme example of Norton craftsmanship and enterprise. Here is a new conception from stem to stern, embodying the most up-to-date protective styling and practical design. It is Britain's first motor-cycle powered by a 250 c.c. O.H.V, twin engine- gearbox unit, providing abundant power throughout a wide speed range, combined with excellent fuel economy and incredibly easy starting. The modern two-tone finish is available in a choice of pleas ing colour contrasts.

The rubber-cushioned 11 spring-on dual seat is removed to show compact tool tray; also the combined dip stick and oil filler cap.

The rigid "one-piece" crankshaft contributes in no small measure to the smooth power of this outstanding unit.

Battery, carburetter and clutch cable adjuster are readily accessible. Half-a-turn with screwdriver or coin on quick action fasteners removes side panel.

THE FEATURES OF 1959 RANGE

FRAME. The really outstanding handling of this frame must be experienced to be believed. This is now used on all models from 350 c.c. upwards.

TOTALLY ENCLOSED REAR CHAIN CASE. Provides considerably increased rear chain life and undoubtedly enhances the appearance of the machine. This is available as an optional extra on all models.

SUPERB COMPONENTS MAKE ALL THE DIFFERENCE

MODELS

250 JUBILEE

50

ES2

88

99

MODELS

Bore x Stroke (m/m)

60 x 44

71 x 88

79 x 100

66 x 72.6

68 x 82

Bore x Stroke (m/m)

No. of Cylinders

2

1

1

2

2

No. of Cylinders

Total Capacity

249 c.c.

348 c.c.

490 c.c.

497 c.c.

597 c.c.

Total Capacity

Compression Ratio

8.75

7.3

7.1

7.8

7.4

Compression Ratio

Valves

O.H.V.

O.H.V.

O.H.V.

O.H.V.

O.H.V.

Valves

Gear Ratio - Top

6.76

5.29

4.75

4.75

4.53

Gear Ratio-Top

Third

8 8

7.04

6.31

6.31

6.04

Third

Second

12.5

9.36

8.41

8.41

8.03

Second

Bottom

19.7

14.12

12.7

12.7

12.1

Bottom

Seat Height

29"

31"

31"

31"

31"

Seat Height

Wheelbase

53.1/2"

55.1/2"

55.1/2"

55 1/2"

55.1/2"

Wheelbase

Overall Length

81"

85 1/2"

85 1/2"

85 1/2"

85 1/2"

Overall Length

Overall Width

28"

29"

29"

29"

29"

Overall Width

Ground Clearance

5 1/2"

6 1/2"

6 1/2"

6 1/2"

6 1/2"

Ground Clearance

Weight

325 lbs.

377 lbs.

384 lbs.

390 lbs.

395 lbs.

Weight

Petrol Tank Capacity

3 1/2 gall.

3 1/2 gall.

3 1/2 gall.

3 1/2 gall.

3 1/2 gall.

Petrol Tank Capacity

Oil Tank working capacity

3 1/2 pts.

4 1/2 pts.

4 1/2 pts.

4 1/2 pts.

4 1/2 pts.

Oil Tank working capacity

Tyre size - Front

3.25x18

3.00x19

3.00x19

3.00x19

3.00x19

Tyre size - Front

Rear

3.25x18

3.50x19

3.50x19

3.50x19

3.50x19

Rear

Brake Dimensions

6" dia. x 1"

Front 8" dia. x 1 1/4"
Rear 7" dia. x 1 1/4"




Brake Dimensions

Chains - Front

3/8" Duplex

1" Pitch x .305" wide

Chains - Front

Rear

1/2" x 305"

5/8" Pitch x 1/4" wide

Rear

Some of the Norton SUCCESSES in 1958

GREAT BRITAIN
I.O.M. Tourist Trophy Races.
350 c.c. class - 13 in first 14 places.
500 c.c. class - 8 in first 9 places.

AUSTRALIA
New South Wales T.T. Mount Druitt.
350 c.c., 500 c.c. and Unlimited classes - 1st & 2nd.
Queensland T.T. Brisbane.
350 c.c. & 500 c.c. classes - 1st, 2nd & 3rd.

AUSTRIA
Austrian Grand Prix. 350 c.c. class - 1st & 2nd.

CZECHOSLOVAKIA
Piestany Race Meeting.
350 c.c. & 500 c.c. classes - 1st & 2nd.

FRANCE
French Grand Prix.
350 c.c. class - 1st & 2nd.
500 c.c. class - 1st to 6th inclusive.

IRELAND
North West 200
350 c.c. & 500 c.c. classes - 1st, 2nd & 3rd.

SOUTH AFRICA
Port Elizabeth " 200 ".
350 c.c. class - 1st & 3rd.
500 c.c. class - 1st, 2nd & 3rd.

SWEDEN
Swedish Grand Prix.
350 c.c. class - 1st to 7th inclusive.
500 c.c. class - 1st & 3rd.

Manx 30/40
The most successfull standard production racing machine in the world.

Basically identical, both engines employ bevel-driven twin over head camshafts, light alloy heads and barrels and high tensile steel connecting rods. A compression ratio suitable for international racing fuels is standard. Lucas rotating magnet magneto and Amal G.P. weir type carburetters are used.

TRANSMISSION : Close ratio 4-speed gearbox ; 3-plate clutch, primary chain oil carried in frame.

SUSPENSION: "Roadholder" telescopic forks with clip-on handle bars. Pivoted fork rear suspension with hydraulically damped shock absorber units.

WHEELS : Light alloy hubs, rims and brake shoes; two leading shoe type front brake.

TANKS : Light alloy with quick action caps.

FRAME : Double loop, all welded, equipped to carry fairings.

OTHER EQUIPMENT : 8,000 r.p.m. revolution counter ; fly screen ; megaphone ; light alloy guards ; steering damper ; ball-ended brake and clutch levers.

FINISH : Black and Silver enamel with chromium plating.

Models

Bore and
Stroke
(m/m.)

Cylinder

Capacity

Compression Ratio

Gear Ratio

Weight

Petrol

Tank

Capacity

Oil Tank
Working
Capacity

Tyre

Size

Brake

Dimensions

30 M

86 x 85'6

499 c.c.

10 07

Top 4-23 2nd 5-63
3rd 4-65 Bot. 7-52

313

5 Gal.

7 b pts.

F.3-00 x 19
R.3-50 x 19

Front:

8" dia. x 1 " wide

40 M

76 x 76-7

348 c.c.

10-15

Top 5-12 2nd 6-81
3rd 5-64 Bot. 9 11

307

5 Gal.

7b pts.

F.3-00 X 19
R.3 50 x 19

Rear:

7" dia. x 11" wide


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