Nyali ya mabuleki amphamvu nthawi zambiri imayikidwa pamwamba pa galimoto, kotero kuti galimoto yoyendetsa kumbuyo ikhale yosavuta kuzindikira kutsogolo kwa buleki ya galimoto, kuti ipewe ngozi yakumbuyo. Chifukwa galimoto yonse ili ndi magetsi awiri a mabuleki omwe amaikidwa kumapeto kwa galimoto, imodzi kumanzere ndi ina kumanja, kotero nyali ya mabuleki amphamvu imatchedwanso nyali yachitatu ya mabuleki, nyali ya mabuleki amphamvu, nyali yachitatu ya mabuleki amphamvu. Nyali ya mabuleki amphamvu imagwiritsidwa ntchito kuchenjeza galimoto kumbuyo, kuti isagunde kumbuyo.
Magalimoto opanda magetsi amphamvu, makamaka magalimoto ndi magalimoto ang'onoang'ono okhala ndi chassis yotsika akamayendetsa chifukwa cha malo otsika a nyali yakumbuyo, nthawi zambiri kuwala sikukwanira, magalimoto otsatirawa, makamaka oyendetsa magalimoto akuluakulu, mabasi ndi mabasi okhala ndi chassis yokwera nthawi zina amakhala ovuta kuwaona bwino. Chifukwa chake, ngozi yobisika ya kugundana kumbuyo ndi yayikulu. [1]
Zotsatira zambiri za kafukufuku zikusonyeza kuti magetsi amphamvu amatha kuletsa ndikuchepetsa kugundana kwa kumbuyo. Chifukwa chake, magetsi amphamvu amagwiritsidwa ntchito kwambiri m'maiko ambiri otukuka. Mwachitsanzo, ku United States, malinga ndi malamulo, magalimoto onse atsopano ogulitsidwa ayenera kukhala ndi magetsi amphamvu kuyambira 1986. Magalimoto onse opepuka omwe agulitsidwa kuyambira 1994 ayeneranso kukhala ndi magetsi amphamvu.
