The first one I got came on a 71 Prowler survivor. 71 Climbers had them too I believe, but I'd have to check the literature photos. They stopped using them mid 71 and switched to a momentary contact style. The chrome switch is cool, but it is frustrating if you forget to turn it on, or worse yet, bump it when you're riding and kill the engine. That probably factored in to the replacement, and cost savings too.