Yamaha XV 1000 TNK Fork Stanchion (81-82) offer several benefits for your motorcycle, including increased durability, improved performance, and smoother operation. Made from high-quality materials and engineered to precise tolerances, TNK fork tubes provide a reliable, smooth and low friction sliding surface for motorcycle forks. With their superior strength and stiffness, they can handle the demands of aggressive riding and off-road terrain, while minimizing flex and reducing friction. Additionally, TNK fork tubes can help to reduce wear and tear on other components, such as seals and bushings, leading to longer service life and lower maintenance costs. Fork Stanchion Length (mm). Fork Stanchion Outside Diameter (mm). Stanchion Type Product Code.