Features: Enhances motorcycle performance with a throttle thumb tension screw kit designed for a precise fit on models from 1974 to 2017. Constructed from metal, this kit includes a tension control knob screw, spring clip, e clip, and spring for durable wear resistance and corrosion protection. Ideal for motorcycle enthusiasts, mechanics, and riders seeking a reliable solution for throttle maintenance and smooth engine operation. Suitable for restoration projects or upgrades, providing improved ride smoothness and enhanced control during extended rides or road trips. Easy to install as a direct replacement, making it a must-have for maintaining optimal motorcycle performance. Specifications: Component: Metal Size: Approx. 2 x 2 x 3 cm / 0.79 x 0.79 x 1.18 inch Part Number: 56402-83A, 56394-74, 11155 Package Includes: 1 Set Throttle Thumb Tension Screw Kit Note: 1. Please allow 1-2 cm errors due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the image may not reflect the actual color of the item. Thank you for your understanding.