Special gear for the Baha, number 57 Fits with gear Biyoun 17 Note: the picture does not clearly show the number of correct teeth, and the information above this note should be checked to verify the correct gear number The current picture shows only the installation location This high quality 55T injection molded gears is designed for use with a 17T pinion gear Hostile spurs offer: 1. Harder material for longer life and less wear 2. Higher strength material to reduce gear failure 3. Handles higher temperatures 4. Lightweight and economical alternative to steel 5. Available in several sizes for a variety of gearing options 6. Made in the USA