Protect your bike's more expensive components with the XLC DO-A16 derailleur hanger. Constructed from lightweight, long-lasting aluminium, the hanger is simple to install with the two-bolt design. The DO-A16 derailleur hanger acts as a defence mechanism, sacrificing itself in an emergency to minimise damage in the event of a crash. Whether you've been in an accident and need a replacement hanger, prefer to have a spare hanger in your toolbox, or you're just a well-prepared and safety-conscious cyclist, the XLC DO-A16 derailleur hanger will suit your needs. This derailleur hanger has two bolt holes. For a hanger with three bolts, please see XLC's DO-A26.