BSA S29 Sloper

BSA S29 Sloper

Specs Mentioned
Make/ Model – BSA S29 Sloper(1929)
Engine – 493 cc ohv
Power – 25 HP @ 5000 rpm.
Top speed – 70 – 75mph

Presented in August 1926 for the 1927 season, the sloper set the BSA company on the road to market domination and success.
It was brilliant designer Harold Briggs, brought in from the Daimler car company, who designed the machine around a sporty and reliable 493 cc ohv (80×98 ) engine which inclined forward in the frame.
Some typical car practice features Briggs used in his design were sump lubrication ( the crankcase was extended to form an oil reservoir holding 3 pints) and return springs within the pushrod tubes to keep the valve gear in constant touch with the cam profiles, giving exceptionally quiet operation.
The Sloper soon got a reputation as a sporting but quiet motorcycle, a real trendsetter.
From the beginning a specially tuned engine could be fitted that produced no less than 25 HP @ 5000 rpm.
The “sloper” concept suddenly became very hot and most British manufacturers hurriedly designed machines with forward leaning engines.