Feedback Sports FATT RAKK Fat Bike Storage And Display Stand. The Feedback Sports FATT RAKK Fat Bike Storage & Display stand is simplicity itself to use. Just roll the fat bike wheel into the slot – and thats it! The spring loaded swing arm holds the top of the wheel to balance the bike, and is suitable for use with all varieties of Fat bikes. The metal sping loaded arm can be locked down to make extra RAKK units easy to store or transport. NB: Image for illustration purposes only.