Source google image: http://www.cycles-hb21.com/out/pictures/master/product/1/vtc_velo_electrique_matra_i-step_tour_xt_mixte_cycles_hb21_dijon_revendeur_matra.jpg
Vtc electrique bosch
Source google image: http://www.cycles-hb21.com/out/pictures/master/product/1/vtc_velo_electrique_matra_i-step_tour_xt_mixte_cycles_hb21_dijon_revendeur_matra.jpg