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If you're swapping carbs or building a custom intake, this Mikuni mounting flange sleeve is what you need.

It's a rubber boot with a 40mm inside diameter on both ends, part number MCMS40/40.

Fits a bunch of carbs like PWK, Keihin, Amal, and of course Mikuni.

Universal fitment, so it's great for custom builds, classic restorations, or performance upgrades.

Made by Mikuni, so the rubber is quality and seals tight.

3-month warranty.

Whether it's for a bike, ATV, or something else, this flange gets the carb hooked up right.


5 out of 5