Njinga

Njinga, wotchedwanso njinga, makina owongolera a matayala awiri omwe amaponderezedwa ndi mapazi a wokwerapo.Pa muyezonjingamawilo amaikidwa mu mzere mu chimango chachitsulo, ndi gudumu lakutsogolo limakhala mu foloko yozungulira.Wokwerapo amakhala pa chishalo ndi chiwongolero potsamira ndi kutembenuzira zogwirizira zomwe zimamangiriridwa ku mphanda.Mapazi amatembenuzira ma pedals omwe amamangiriridwa ku cranks ndi tcheni.Mphamvu imafalitsidwa ndi chingwe cha unyolo cholumikiza chainwheel ndi sprocket pa gudumu lakumbuyo.Kukwera n’kosavuta kudziŵa, ndipo njinga zimatha kukwera mosavutikira pang’ono pa mtunda wa makilomita 16–24 (makilomita 10–15) pa ola—pafupifupi kuŵirikiza kanayi kapena kasanu liŵiro la kuyenda.Njingayi ndi njira yabwino kwambiri yosinthira mphamvu za anthu kukhala zoyenda.

Panjinga zimagwiritsidwa ntchito kwambiri poyendera, posangalala komanso pamasewera.Padziko lonse lapansi,njingandi zofunika kusuntha anthu ndi katundu kumadera kumene kuli magalimoto ochepa.Padziko lonse, pali njinga kuwirikiza kawiri kuposa magalimoto, ndipo amagulitsa magalimoto atatu kapena imodzi.Mayiko a Netherlands, Denmark, ndi Japan amalimbikitsa kwambiri njinga popita kokagula zinthu ndi popita.Ku United States, misewu yanjinga yapangidwa m’madera ambiri a dzikolo, ndipo boma la United States likulimbikitsa njinga ngati njira ina m’malo mwa magalimoto.