  We construct metrics for multiple Kaluza-Klein monopole-branes carrying
travelling waves along one of the isometry directions (not KK monopole fibre)
in ten dimensional type IIB supergravity and relate them via string dualities
to two charge Mathur-Lunin metrics. We find that adding momentum to $N_K$
coincident monopoles leads them to separate in the transverse direction into
$N_{K}$ single monopoles. Hence the bound state metrics are perfectly smooth,
without $Z_{N_{K}}$ singularities, and correspond to a system with non-zero
extension in the transverse directions. We compare this solution with other
solutions with KK monopole.
