I wish to change my downtube shifters to some Gipiemme Coke Spoons ( http://velobase.com/ViewComponent.aspx? ... b&Enum=104 ), but I'm doubtful if they will fit. At the moment I'm using some Shimano 333 shifters. ( http://velobase.com/ViewComponent.aspx? ... 9&Enum=104 ) Will the Gipiemme shifters fit the Shimano bosses on the clamp? If not, what other shifter clamps should I seek as to fit the Gipiemme shifters?