Simudza hurefu hwemotokari uye uvandudze kufamba kwemotokari nekuwedzera kureba kwecoil chitubu uye chinomisikidza chinobata chemota yekutanga.Panguva imwecheteyo, iyo shock absorber chubhu uye coil spring inosimbiswa kuti iite kuti kumisa motokari kugadzikane uye kusaneta.