Inline  brake cable switch as used on many motorcycles of the late '60's and early '70's. As used on :
DUCATI 750 GT/ SPORT
BSA A65 (later models),B25/50SS Goldstars, Rocket 3.
Triumph T100,TR5T Trophy
Norton Commando fastback/roadster models (1970-74). 

Ideal for enthusiasts who wish to build their own cables.