The aftermarket (EMGO) versions are reported to have short life (2-3 years) here in these forums. The Honda ones last longer, but even they are undersized in OD, requiring some extra work to make them seal well. I have been using either CB550 hose clamps and/or the Oetiker adjustable (#50-9) type, but be careful with the latter: they are aircraft worm-gear hi-torque type and can cut the rubber in two with seemingly little screwdriver force!