I-Evost Series Back Extension inomklamo ongena kuwo ngamarola aguquguqukayo angemuva, okuvumela ojimayo ukuthi akhethe ngokukhululekile uhla lokunyakaza. I-waist pad enwetshiwe inikeza ukunethezeka nokusekela okuhle kakhulu kulo lonke uhla lokunyakaza. Yonke idivayisi iphinde izuze izinzuzo ze-Evost Series, isimiso se-lever esilula, isipiliyoni esihle kakhulu sezemidlalo. Ama-footrest anezindawo ezimbili kuvumela abasebenzisi ukuthi bakhethe indawo yosekelo enethezeke kakhulu ngokusekelwe kububanzi bokunyakaza, kuyilapho izibambo ezinezinhlangothi ezimbili zinikeza usekelo olwengeziwe lokuzinza kokuqeqeshwa okuthuthukisiwe.