Tension & Traction Gasi Spring, aya mayunitsi anoshanda akananga kwakatarisana nekumanikidza gasi zvitubu. Kukwirisa zvipingamupinyi kazhinji hazvibvumiri kushandiswa kwezvitubu zvekumanikidza; kureva, magonhi nemapaneru ekupinda akadzikwa akachinjika kuzasi uye chero rudzi rwechivharo kana chivharo chinofanira kudhonzwa kuvhurika kana kudhonzwa kuvharika. Tension gasi zvitubu zvakare anowanzo shanda sema tensioner pamakanika magungano uye mabhandi madhiraivha.