le bike tres populaire de gt peformer est de retour pour 2021 le performer est un velo accessible il est destine au rider debutant details cadre acier hi ten boitier mid bb 100 roulements scelles equipements cadre gt fs design tubes acier hi ten gusset mid bb seat stay mounted u brake integrated 1 1 8 h t w removable rotor tabs odyssey springfield brake compatible fourche gt fs design hi ten 2pc steerer tapered legs 31mm offset 3 8 axle dropouts chaine kmc s1 pedalier gt power series cr mo 3pc 170mm arms 19mm x 8t cr mo spindle gt 25t steel chainwheel boitier de pedalier mid sealed bearing pedales gt low profile fs platform design pp material boron axle cog set 9t sealed 1pc driver 16t freewheel jantes alloy single wall 36h pneus gt lp 5 20 x 2 35 moyeu avant alloy body sealed bearings 3 8 axle 36h 15mm nut moyeu arriere alloy body 1 loose ball 4 sealed bearing 14mm x 165mm axle 9t cassette 36h 17mm nut rayons stainless steel 14g freins aluminum u brake w soft compound pad levier de frein alloy guidon gt freestyle 2pc steel 8 5 h x 29 w 3 up 11 back potence gt top load 1 1 8 cold forged cap 32mm rise 50mm poignees gt super soft 155mm single compound w o flange w gt removable plug jeu de direction 1 1 8 integrated design 45x45 degree sealed bearings selle gt pivotal padded tige de selle alloy pivotal 25 4 x 200mm poids 12 3 kg