Old-STF Cycle

Old-STF Cycle is a leading manufacturer of shovelhead oil lines and high-quality engine components for Harley-Davidson enthusiasts. Their range includes brass rocker box split oil lines, stainless and black rocker box lines and pushrod keeper sets, all designed to deliver secure oil flow and prevent leaks while maintaining engine integrity. Each part is engineered with exacting standards to ensure proper fitment on Shovelhead and Ironhead models, allowing riders to maintain or restore the performance of classic Harley engines. These components are essential for both everyday riding and precision restorations, providing reliability without compromising authenticity or function.

Beyond oil lines, Old-STF Cycle offers carburetor support brackets, bee blocker carb covers and mini air cleaners compatible with Keihin CV setups, ensuring clean airflow and optimized engine performance. Each product is crafted with premium materials and attention to durability, addressing the needs of builders and restorers who demand both functional excellence and vintage style. By combining quality, fitment and design precision, these components support engine longevity and rider confidence, making them indispensable for Shovelhead and Ironhead maintenance and upgrades.

Reflecting its dedication to quality, Old-STF Cycle offers a full range of engine hardware and accessories, including brass pushrod keeper sets and specialized mini air cleaners, all engineered to improve performance, reliability and lifespan for classic Harley engines. These components provide critical support to oil delivery systems, carburetors and airflow, ensuring smooth operation under demanding conditions. For vintage Harley-Davidson owners and custom builders, Old-STF Cycle offers a robust selection of parts that merge authentic design, functional precision and long-lasting durability, making it a trusted choice for anyone maintaining or upgrading Shovelhead or Ironhead motorcycles.