Check the listing for details. Travel Trac Comp Fluid Bicycle Trainer - 405839WHINON. Condition: Used. Listed at 20.00 USD. Experience the smooth and dynamic resistance of the Travel Trac Comp Fluid Bicycle Trainer, model number 405839WHINON. Designed for cycling enthusiasts, this trainer simulates a wide range of terrains and inclines, providing a comprehensive workout to elevate your fitness levels. Its fluid resistance system ensures a consistent and challenging workout, making it suitable for both beginners and seasoned cyclists.The trainer is equipped with a stable base to secure your bike and features a compact design for easy storage when not in use. Whether you're looking to stay fit during the off-season or simply seeking an efficient way to improve your cycling performance, the Travel Trac Comp Fluid Trainer is a reliable choice for your indoor cycling needs.