Makina ozungulira ozungulira ozungulira ali ndi singano ziwiri; imodzi pa kuyimba komanso komanso ya silinda. Palibe ochimwa m'makina owirikiza kawiri. Makonzedwe apoli awa amalola nsalu kuti ipangidwe yomwe ili ndi nsalu yowirikiza kawiri ndi nsalu imodzi, yomwe imadziwika kuti nsalu ziwiri za jersey.