BSA A10 Rocket 650 Gold Star

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BSA A10 Rocket 650 Gold Star
Manufacturer
BSA
Production 1584 units
Engine
Four stroke, parallel twin cylinder, OHV
Compression ratio 9.1:1
Top Speed 185 km/h / 115 mph
Ignition Lucas magdyno
Battery 6V
Transmission 4 Speed
Frame Welded seamless steel tubing with duplex downtubes and full cradle engine support, bolted-on rear sub frame
Suspension Front: Telescopic forks with coil spring - hydraulically damped
Rear: Swinging arm, twin coil
Brakes Front: Drum, 8 in.
Rear: Drum, 7 in.
Front Tire 3.25 x 19 in.
Rear Tire 4.00 x 19 in.
Wheelbase 1391 mm / 54.75 in.
Weight 143 kg / 315 lbs (dry),
Fuel Capacity 16 L / 4.2 US gal
Manuals Service Manual


It could reach a top speed of 185 km/h / 115 mph.

Engine

The engine was a Air cooled cooled Four stroke, parallel twin cylinder, OHV. The engine featured a 9.1:1 compression ratio.

Drive

Power was moderated via the Multi-plate with built-in cush drive.

Chassis

It came with a 3.25 x 19 in. front tire and a 4.00 x 19 in. rear tire. Stopping was achieved via Drum, 8 in. in the front and a Drum, 7 in. in the rear. The front suspension was a Telescopic forks with coil spring - hydraulically damped while the rear was equipped with a Swinging arm, twin coil. The A10 Rocket 650 Gold Star was fitted with a 16 L / 4.2 US gal fuel tank. The bike weighed just 143 kg / 315 lbs. The wheelbase was 1391 mm / 54.75 in. long.

Photos

BSA A10 Rocket 650 Gold Star BSA A10 Rocket 650 Gold Star BSA A10 Rocket 650 Gold Star

Overview

Make Model BSA Rocket Gold Star
Year 1962 - 63
Production 1584 units
Engine Type Four stroke, parallel twin cylinder, OHV
Displacement 646 cc / 39.4 cub in.
Bore X Stroke 70 x 84 mm
Carburetor Amal Monobloc
Cooling System Air cooled
Compression 9.1:1
Lubrication Dry sump
Exhaust Single, stainless steel
Ignition Lucas magdyno
Battery 6V
Starting Kick start
Max Power 34 kW / 46 hp @ 6250 rpm Optional RRT 2 close ratio gearbox: 37 kW / 50 hp
Clutch Multi-plate with built-in cush drive
Transmission 4 Speed
Final Drive Chain
Frame Welded seamless steel tubing with duplex downtubes and full cradle engine support, bolted-on rear sub frame
Front Suspension Telescopic forks with coil spring - hydraulically damped
Rear Suspension Swinging arm, twin coil
Front Brakes Drum, 8 in.
Rear Brakes Drum, 7 in.
Wheels Shouldered alloy wheels, wire spokes
Front Tire 3.25 x 19 in.
Rear Tire 4.00 x 19 in.
Dimensions Length: 2100 mm / 84.0 in.
Wheelbase 1391 mm / 54.75 in.
Dry Weight 143 kg / 315 lbs
Fuel Capacity 16 L / 4.2 US gal
Top Speed 185 km/h / 115 mph
Colours Silver/chrome, Red/chrome
Source Wikipedia, Vintage Motorcycles Online, Bar Hopper Challenge, Classic Auctions

External Links