ITEM NAME:4x Rubber Manifold Mounting Flange Adapter for Mikuni VM24 26 Keihin PE Carb .like-pro-float .like-pro-price-both{clear: both;.Carb Flange Intake Adapter Manifold Boot 28mm 35mm Works for Mikuni Keihin OKO KOSO Carburetor. Made of rubber materials for strong strength and long durability. One side is 28mm,the other side is 35mm,the bolting distance(centre to centre) is 48mm.