Swingarm Reinforcement | Ultra Bee

Sur-Ron Ultra Bee Swingarm Repair and Strengthening Service Tired of unexpected chain derailment on your Ultra Bee? Aggressive riding can cause swingarm flex that eventually lead to cracks and failure. This reinforcement solves the root cause, delivering the structural integrity found on our race bikes. Eliminate the need for aftermarket guides entirely. Under large loads such as added power and larger wheels the Ultra Bee swingarm can flex excessively causing chain derailment and eventually cracking and failure. These cracks start where the thin cast swingarm is welded to the thicker shock mount directly in front of the rear tire. It is important to catch the cracks early before they spread to the sides of the swingarm. Once they reach the side channels, they can not be repaired with any certainty. If the crack extends the complete distance of the crossmember weld into the sides we do not recommend repairing it. Also If there is a large amount of dark aluminum dust around the crack it