Twabonye amagare menshi yoroheje cyane, kandi kuri iyi nshuro bitandukanye gato.

Abakunda sima bakora akazi kabo baherutse kurota. Bashingiye ku gitekerezo cy'uko ibintu byose bishobora gukorwa muri sima, bakoresheje iki gitekerezo cy'umuzimu ku igare maze bakora igare rya sima ripima ibiro 134.5.

Uyu mufana ukunda gukora imyitozo ngororamubiri akoresha uburyo bwo gusuka. Igice cy'umukara gishyirwamo umukara w'igiti kugira ngo gishyireho ishusho, hanyuma icyuma n'urukiramende byo hasi bishyirwaho, hanyuma sima igakoreshwa mu gukikiza inshinge. Nyuma yo gukonjesha, haboneka umukara. Ubu buryo bukoreshwa no ku bindi bice, harimo crankset ya sima, amapine ya sima n'intebe. Inenge yonyine ni uko imodoka idashobora gushyirwamo sisitemu yo gufunga feri, bityo umukinnyi akoresha indorerwamo zuzuye sima n'ingofero kugira ngo yirinde, maze ubwonko bwe bugafunguka cyane.