1958 AJS & Matchless Comparison Chart Cooper Motors - Vintage Motorcycle Ad

Description

1958 AJS & Matchless Comparison Chart Cooper Motors - Vintage Motorcycle Ad
Original, Vintage Magazine Advertisement
Size: Approx. 9" x 12" (22.5 cm x 30 cm)
Condition: Good
AJS & MATCHLESS 40 inch
MOTORCYCLE “B” 40 Inch
MOTORCYCLE “C” 40 inch
MOTORCYCLE “D” 42 Inch
MOTORCYCLE “E" 40 inch
CYLINDER BORE It's the BIG BORE that counts!
72 mm Bore
71 mm Bore
70 mm Bore
70 mm Bore
70 mm Bore
Length of Connecting Rods Short Rods give that extra Power
5% inch Rod Length
6*/2 inch Rod Length
6-7/16 inch Rod Length
6-7/32 inch Rod Length
6-7/16 inch Rod Length
(A)
Short Rods—On Intake Stroke (B)
Short Rods—On Power Stroke
Piston travels faster during first half of stroke. This draws extra gas in cylinder. Rods get angularity to crankpin quicker, giving Fire Power more leverage to turn crankshaft.
CRANKSHAFT The Heart of the Engine
Solid one piece Shaft Double Flywheels
Bolted 3-Piece
Bolted 2-Piece
One Piece Shaft
Bolted 2-Piece
3 Main Bearings
2 Main Bearings
2 Main Bearings
2 Main Bearings
2 Main Bearings
MAIN BEARINGS—that support crankshaft
3” Rollers each end Vanderville Center
W and 2-13/16" Ball
1%" Bushing and 2-7/16" Roller
3-11/32" Roller and 3-11/32" Ball
1%" Bushing and 2-7/16" Roller
CYLINDER BARRELS Barrels Fastened to Crankcase
2 Separate Barrels Straight through hold down bolts
Cast one unit Bottom flange bolted
Cast one unit Bottom flange bolted
2 Separate Barrels Straight through hold down bolts
Cast one unit Bottom flange bolted
CYLINDER HEADS
2 Separate Heads Aluminum Alloy
Cast one unit Aluminum also iron
Cast one unit Aluminum
2 Separate Heads Aluminum
Iron casting
CAMSHAFTS
2 Camshafts—Gear Driven
2 Camshafts
1 Camshaft
2 Camshafts
1 Camshaft
CARBURETOR
1-1 8" Monobloc
1-1/16" Monobloc •
1-1/16" Monobloc
1-1/16" Monobloc
1-1/16" Monobloc
OIL PUMPS
2 Separate gear type pumps
Plunger Pump
One double gear type
Plunger Pump
One double gear type
Front Forks (Lower Fork Legs)
Teledraulic Aluminum Lower Forks
Telescopic Iron Lower Forks
Telescopic Iron Lower Forks
Telescopic Alum. Lower Forks
Telescopic Iron Lower Forks
Wheel Hubs (This is unsprung weight)
Aluminum Full Width Big Fins. Streamlined
Iron Full Width Front Iron one-side drum-type rear
Iron Full Width Side Flanges
Aluminum Full Width Side Flanges
Aluminum Full Width Side Flanges
Finish on Hubs
Polished Alloy
Painted Black
Painted Black
Alloy Polished
Alloy Polished
Type of Spokes
Straight Spokes
Straight Spokes, Front
Straight Spokes
Hook Type Spokes
Hook Type Spokes
Fenders, Sport-Models
Aluminum, Polished
Painted
Painted
Aluminum
Iron, Chromed
Motors
Phone: ADams 1-9115
Frank Cooper, President
Parti Distributor East of.Miaaiatippl Rlverr E. C. Shlllingford & Sons 1635 Hunting Park Ave., Philadelphia, Pa., Phone: DAvenport 4-5045
14582-AL-5804-23