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THUNDERBOLT r«°^CD^K".« ,_T,

NEW 40 cu. in. Super-Finished Super-Chromed Twin has full-race camshaft, high-performance engine

Cronkshaft centrifugal filier on the twin cylinder engmes enjurti lhol nothinę bot clcan oil is dclivered to me Dig-end bgarmgs.

For tliose whó prefcr o single carburetor high performance model.

Fuli valanced fenders arc heavily chrome plated.

High c-fficicncy, single-carburecor engine has fuli racing type camshaft.

Sports type headlight 8,000 r.p.m. tacho-meterand speedometer on twin mounts.

New fast-acceleration gearing, improvęd high-alloy sceel gears.

THUNDERBOLT FEATURES

Super-chromed sports model, Is ideał for high speed tourlng or ^ports ridlng.

Valanced fenders for best weather protection whllc touring.

As in ocher BSA twlns. has fułl-hydraulic-controlled forks. 3nd adjustable-to-load rear suspension.

Super-Finish features Indude chrome fenders chrome tank panels, many other parts łn heavy chrome or polished alloy.

Metallic blue tank and side nacelles.

Full-width hubs, powerful brakes madę for quick, surę, stops.

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