Enkomerero eya waggulu eya shock absorber eyungibwa ku mubiri oba fuleemu y’emmotoka, ate eya wansi eyungibwa ku aksii. Emmotoka bw’etambula ku nguudo ezitali za kyenkanyi, omubiri gukankana. Ekintu ekinyiga enkuba kikendeeza mangu okukankana kuno, nga kikozesa obuziyiza bw’okutambula kw’amazzi gaakyo okusaasaanya amaanyi g’okukankana.
Emmotoka ezisinga ez’omulembe zikozesa ebyuma ebikuba encukwe (telescopic shock absorbers). Fuleemu ne aksii bwe bitambula nga bikwatagana, okusikagana wakati w’amazzi agali munda mu kiziyiza ekikuba n’ebisenge by’ekiboola kuleeta okuziyiza okukankana kw’omubiri; resistance eno mu yinginiya eyitibwa damping force. Empalirizo y’okukendeeza (damping force) ekyusa amasoboza g’okukankana ag’omubiri okufuuka amasoboza ag’ebbugumu, aganywezebwa amazzi n’ennyumba. Okusobola okutuuka obulungi ku kuvuga okulungi n’obukuumi obusingako, omugerageranyo gw’okukendeeza amazzi (damping coefficient) teguteekebwa ku muwendo gumu wabula gwawukana okusinziira ku mbeera y’emmotoka, okukakasa nti omutindo gw’okuyimiriza bulijjo guli kumpi n’embeera yaayo ennungi. N’olwekyo, ebimu ku biwujjo by’emmotoka bitereezebwa era bisobola okulonda mu ngeri ey’otoma okusinziira ku bubonero bwa sensa.
