Bicycle yamapiri, dzina la Chingerezi ndi "njinga yamapiri", yofupikitsidwa ngati MTB. Chochokera ku United States, ndi chitsanzo chochokera kwa achinyamata a ku America omwe amafuna chisangalalo ndi kuyendetsa njinga kuti akachite mipikisano yachinyengo m'malo opanda msewu m'mipikisano ya njinga zamoto. Munthu woyamba kukwera njinga yamapiri kuchoka pamsewu anali wophunzira pa yunivesite ya California, James Finley Scott, yemwe anali munthu woyamba kusintha njinga wamba kukhala njinga yamapiri. Pambuyo pake, maseŵera apakati pang’onopang’ono anayamba kutchuka ku Ulaya ndi ku United States, ndipo anapanga chochitika. Mu 1990 bungwe la International Cycling Union linazindikira masewerawa, ndipo mu 1991 World Cup yoyamba inachitika. Njinga zamapiri ndi njinga zomwe zimapangidwa makamaka kuti ziziyenda pamsewu (mapiri, misewu, minda ndi misewu yamchenga yamchenga, ndi zina zotero), ndipo mawonekedwe ake akuluakulu ndi: matayala akuluakulu, zogwirira ntchito zowongoka, kuyamwa kutsogolo ndi kumbuyo, komanso kukwera bwino. Matayala otalikirapo okhala ndi mano ambiri amapereka mphamvu yogwira, ndipo pali zotsekemera zotsekemera kuti zizitha kugwedezeka. Kugwiritsiridwa ntchito kwa zinthu zochititsa mantha kutsogolo kwakhala kovomerezeka m'zaka zaposachedwa, ndipo magalimoto okhala ndi kutsogolo ndi kumbuyo akuchulukirachulukira. Njinga zamapiri zina zidayamba kugwiritsa ntchito tinthu tating'ono, koma zogwirizira zokhala ndi ngodya zokwera zakhala zotsogola komanso njinga zamapiri. Iwo ali ndi makhalidwe a high rigidity ndi kusinthasintha kuyenda. Palibe chifukwa chosankha msewu mukamakwera. Kaya ndikuyendayenda mumsewu kapena kuyenda momasuka, wakhala akugwiritsidwa ntchito kwambiri. Ndemanga zabwino, okwera njinga amatha kusangalala ndi kukwera momasuka m'malo osiyanasiyana amisewu, njinga zamapiri, chifukwa cha mawonekedwe awo olimba, olimba, owoneka bwino, mitundu yowoneka bwino, komanso kukwera kwapamwamba, posachedwapa asanduka tawuni Mafashoni ndi njinga zamapiri zomwe achinyamata amatsata ndizosiyana ndi njinga wamba m'malo osiyanasiyana, monga matayala okhala ndi mphamvu yotsamira, kukana kugwedezeka kwabwino, chimango cholimba komanso cholimba chokhala ndi zinthu zolimba kwambiri, zogwirizira zomwe sizivuta kutopa, komanso ngakhale pamapiri otsetsereka. Kutumiza komwe kungathenso kukwera bwino, ndi zina zotero, kumapangitsa kuti njinga zamapiri zikhale zoyenera kukwera mapiri kunja kwa msewu ndi kutuluka.