  In the context of the brane-world scenarios with compactified large extra
dimensions, we study the production of the possible massive brane oscillations
(branons) in electron-positron colliders. We compute their contribution to the
electroweak gauge bosons decay width and to the single-photon and single-Z
processes. With LEP-I results and assuming non observation at LEP-II, we
present exclusion plots for the brane tension $\tau = f^4$ and the branon mass
$M$. Prospects for the next generation of electron-positron colliders are also
considered.
