Among the first products designed, engineered, and manufactured were 4-Speed and 5-Speed electric start conversion kits for open primary Harley-Davidson® and V-Twin kick start motorcycles. A complete line of engineered high torque, gear reduction starters for 1965-88 closed primary Harley-Davidson® motorcycles followed shortly thereafter. Once in the marketplace, the industry embraced Tech and recognized their high performance gear reduction starters as the number one quality starter line for cranking big inch, high compression motors.