Njinga ya m'mapiri, dzina la Chingerezi ndi "njinga ya m'mapiri", chidule chake ndi MTB. Yochokera ku United States, ndi chitsanzo chochokera kwa achinyamata aku America omwe akufuna chisangalalo ndi kuyendetsa njinga kuti achite mipikisano yochenjera m'malo ochitira mipikisano ya njinga zamoto. Munthu woyamba kukwera njinga ya m'mapiri kunja kwa msewu anali wophunzira ku University of California, James Finley Scott, yemwe anali munthu woyamba kusintha njinga wamba kukhala njinga ya m'mapiri. Pambuyo pake, masewera odutsa m'madera osiyanasiyana anayamba kutchuka ku Europe ndi United States, ndipo adapanga chochitika. Mu 1990, International Cycling Union idavomereza masewerawa, ndipo mu 1991 World Cup yoyamba inachitika. Njinga za m'mapiri ndi njinga zomwe zimapangidwa mwapadera kuti zigwiritsidwe ntchito kunja kwa msewu (mapiri, misewu, minda ndi misewu ya mchenga, ndi zina zotero), ndipo zinthu zazikulu ndi izi: matayala akuluakulu, zogwirira zowongoka, kuyamwa kwa kugunda kutsogolo ndi kumbuyo, komanso kukwera bwino. Matayala akuluakulu, okhala ndi mano ambiri amapereka mphamvu, ndipo pali zoyamwa kugunda kuti zigwire kugunda. Kugwiritsa ntchito zoyamwa kugunda kutsogolo kwakhala kofala m'zaka zaposachedwa, ndipo magalimoto okhala ndi zoyamwa kugunda kutsogolo ndi kumbuyo akukhala otchuka kwambiri. Njinga zina za m'mapiri zinayamba kugwiritsa ntchito zogwirira zazing'ono, koma zogwirira zokhala ndi ngodya yokwera mmwamba zakhala zapamwamba komanso zoyendera njinga za m'mapiri. Zili ndi makhalidwe olimba kwambiri komanso osinthasintha. Palibe chifukwa chosankha msewu mukakwera. Kaya ndi kuyenda mumsewu kapena kuyenda mosangalala, zakhala zikugwiritsidwa ntchito kwambiri. Ndemanga zabwino, okwera njinga amatha kusangalala mokwanira ndi kukwera njinga momasuka m'malo osiyanasiyana amisewu, njinga za m'mapiri, chifukwa cha mawonekedwe awo olimba, olimba, atsopano, mitundu yosiyanasiyana, komanso magwiridwe antchito abwino kwambiri okwera, posachedwa zidzakhala za m'mizinda. Njinga zamafashoni ndi za m'mapiri zomwe achinyamata amatsata ndizosiyana ndi njinga wamba m'mbali zosiyanasiyana, monga matayala okhala ndi mphamvu yochepetsera, kukana kugwedezeka bwino, chimango cholimba komanso cholimba chokhala ndi zinthu zolimba kwambiri, zogwirira zomwe sizosavuta kutopa, komanso ngakhale pamalo otsetsereka. Chojambulira chomwe chimathanso kukwera bwino, ndi zina zotero, chimapangitsa njinga za m'mapiri kukhala zoyenera kwambiri kukwera mapiri panja ndi potuluka.