Mounts a Stix light to the CPSC or DIN standard reflector mount found on nearly every rack out there, including the Specialized Pizza Rack. If you are running a bag on top of your rear rack, a taillight mounted on your seatpost can be totally obscured to motorists behind you. The Stix Reflector/Rack Mount is an ingenious way to get maximum visibility when running a rear rack bag. Specialized Stix Reflector Mount