I have two sizes of stainless steel double wire spring clamps (sold in packs of 10) to go with the Tygon hose that we sell. http://www.litetek.co/FuelHose.html The smaller size suits the hose when fitted to the smaller fittings on our 250's This pic is of the Honda CBR250 fuel Tee. and the larger size is for the larger fittings like this fuel tap from a 400. Cheers Blair