Rebuild kit for Triumph Keihin FCR carburetors. This kit fits : Keihin FCR39 dual carburetor kits for the Triumph Bonneville & Thruxton. This kit does not fit : the stock carburetors.E are Keihin , Mikuni and Lectron dealer - we're here to help. And, don't forget to check out my other items and add me to your favourites list. The item "Rebuild kit Keihin FCR 39 flatslide carburetor Triumph Bonneville Thruxton NEW" is in sale since Sunday, October 22, 2017. This item is in the category "Vehicle Parts & Accessories\Trials & Motocross Bike Parts"." and is located in Hengelo. This item can be shipped worldwide.