Mikuni rubber carburetor mounting spigots are pliable yet sturdy and allow the best alignment of your Mikuni carburetor.  Remains pliable over time ensuring a compliant seal throughout the life of you motorcycle. This is the oval port, or newer style rubber holder that is 100% compatible with the Mikuni HSR intake manifolds, either with or without MAPS port.  If you are looking for the old style or round port rubber holders they can be found below.

Don't compromise, use genuine Mikuni components.