Seller notes

Venturi insert for Keihin FCR MX carburetors. Do you need to go bigger? With this insert, you can have your carb bored out to a whopping 43mm! CNC machined from billet aluminum. This fits: 37-39-40-41mm. Keihin FCR MX carburetors. You will get: 1 insert. (does not fit the slant Keihin FCR carburetor) Ready to race. Questions? We are Keihin and Mikuni dealer - we're here to help. We package professionally and ship out fast! And, don't forget to check out our other items and add me to your favorit...

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