Mochini oa matla oa F Series, F87 ke mochini o le mong oa Dual station fitness, ke hore ho koetlisa Leg Extension le leg curl mochining o le mong. bohle ba ikamahanya habonolo ho tloha sebakeng se lutseng, ho fana ka mokhoa oa motho ka mong, o phutholohileng o tšehetsang mekhoa e nepahetseng ea boikoetliso.