29:
152:
all were equipped by a 4-speed gearbox. From 1930 there was an optional sporting kit for £10, including a high-compression piston, hardened valves and springs, and a racing sparkplug, but the company noted that there were few buyers. The model ceased production in 1935, by which time there were only two models, an overhead-valve and a sidevalve, both of 595cc.
155:
The large heavy flywheel and easy cams gave the Sloper a slow purposeful tick over, which was supplemented by large fishtail silencers. With a purposeful rhythm, together with its easy handling, they may have added to choice of its name. Cruising speed was 55 miles per hour (89 km/h), with a top
143:
Launched in 1927, the 493cc overhead valve engine was slanted, and the motorcycle featured a saddle tank that enabled a low seating position, improving the centre of gravity and handling. Designated as the new S-series, whether this stood for sloper, speed or silence is unknown, but sloper became the
151:
Early models had a duplex-frame and three-speed gearbox, but soon the top tube was replaced by an I-frame forging to support a new steering head. By the 1929/30 the engine carried a twin-port head, and the ohv joined by a less-popular side-valve model; these models also had extra chrome. From 1932
147:
The first models featured a 493cc (80x98mm) single ported cylinder-head, topped by a cast-aluminium enclosure for the rockers, with exposed valve springs. Alongside the cast barrel were plated tubes to cover the pushrods. Easy cam contours and wide bases on the tappets ensured no associated valve
148:
clack, meaning that the Sloper was regarded by many as one of the smoothest and quietest of sporting 500cc machines. The large crankcase accommodated both a large and heavy flywheel, and a separate oil feed tank controlled by a hand meter.
144:
term used by motorcyclists and hence adopted by BSA for marketing. The Sloper range remained much the same until its demise in 1935. Each model was designated with the two letters of the year produced, hence the S31 was produced in 1931.
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Motorcycle panorama: a pictorial review of design and development
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88:
80 mm × 98 mm (3.1 in × 3.9 in)
96:
70–75 mph (113–121 km/h) (Super Sports version)
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156:speed of around 75 miles per hour (121 km/h).
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136:, were a series of motorcycles produced by the
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202:Guide to Pre-War British Motorcycles
958:Motorcycles introduced in the 1920s
71:493 cc (30.1 cu in)
118:Linked front-rear from rear pedal.
14:
166:List of motorcycles of the 1920s
27:
1:
917:Birmingham Small Arms Company
138:Birmingham Small Arms Company
132:, most commonly known as the
974:
140:(BSA) from 1927 to 1935.
26:
236:, Newton Abbot, p.
927:Norton Villiers Triumph
922:List of BSA motorcycles
665:BSA C15 Sportsman SS80
366:A65 Firebird Scrambler
352:A10 Spitfire Scrambler
228:Holliday, Bob (1974),
645:B25T Victor Trail 250
380:A65 Lightning Clubman
116:Drum front & rear
953:Standard motorcycles
385:A65 Lightning Rocket
347:A10 Rocket Gold Star
640:B25SS Gold Star 250
553:B44 Victor Roadster
395:A65 Spitfire Hornet
23:
584:B40 Sportsman SS90
558:B44 Victor Special
502:Gold Star Catalina
446:A7SS Shooting Star
18:Type of motorcycle
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934:
859:
858:
711:
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543:B44 Victor Enduro
538:B44 Shooting Star
477:B50T Victor Trail
247:978-0-668-03647-4
122:
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722:
467:B50MX Moto Cross
362:A10 Super Rocket
337:A10 Golden Flash
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204:. Temple Press.
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912:BSA motorcycles
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841:B22 Empire Star
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820:R33-5 Blue Star
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794:W33-8 Blue Star
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630:B25FS Fleetstar
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497:DBD34 Gold Star
472:B50SS Gold Star
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415:T65 Thunderbolt
410:A65 Thunderbolt
357:A10 Super Flash
342:A10 Road Rocket
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517:ZB34 Gold Star
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492:DB34 Gold Star
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482:BB34 Gold Star
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891:Edward Turner
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675:C25 Barracuda
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548:B44 Victor GP
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441:A7S Star Twin
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375:A65 Lightning
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311:A70 Lightning
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106:Duplex cradle
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881:Bert Hopwood
783:
670:C15 Starfire
635:B25 Starfire
390:A65 Spitfire
316:A75 Rocket 3
231:
201:
200:C.J. Ayton.
154:
150:
146:
142:
133:
126:BSA S-Series
125:
123:
36:Manufacturer
15:
907:BSA Company
718:motorcycles
450:A50 Cyclone
297:motorcycles
130:motorcycles
942:Categories
512:Unit twins
420:Unit twins
400:A65 Rocket
370:A65 Hornet
332:A10 series
211:0600351408
172:References
134:BSA Sloper
102:Frame type
46:Production
22:BSA Sloper
871:Doug Hele
864:Designers
93:Top speed
49:1927-1935
886:Val Page
660:C15 Star
579:B40 Star
458:A50 Wasp
405:A65 Star
295:Post-war
160:See also
60:Standard
810:Model L
732:Model E
716:Pre-war
703:Sunbeam
680:Sunbeam
829:250 cc
803:350 cc
784:Sloper
767:500 cc
758:M34-13
753:M34-12
748:M33-10
741:600 cc
725:770 cc
698:Bantam
691:stroke
623:250 cc
589:B40 WD
567:350 cc
526:441 cc
429:500 cc
325:650 cc
304:750 cc
244:
208:
112:Brakes
84:stroke
67:Engine
900:Other
789:W33-7
55:Class
609:Fury
533:B 44
242:ISBN
206:ISBN
124:The
80:Bore
851:C11
836:B21
774:M20
689:Two
655:C12
650:C11
574:B31
507:M20
462:B33
128:of
73:OHV
40:BSA
944::
436:A7
240:,
238:74
220:^
180:^
82:/
280:e
273:t
266:v
214:.
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