https://www.google.ro/search?q=ax+spate+biciclete&espv=2&biw=1024&bih=655&source=lnms&tbm=isch&sa=X&ei=Pi87VZD3LMnUaqrxgKgD&ved=0CAYQ_AUoAQ#imgrc=NRHSP7Xxk-nANM%253A%3B-fAv-_2u3HD21M%3Bhttp%253A%252F%252Fwww.onebike.ro%252Fimage%252Fcache%252Fdata%252FPiese%252520de%252520schimb%252FAx%252520butuc%252F16%252Fax_spate_10_mm_mtb_montat_154_g-200x250.jpg%3Bhttp%253A%252F%252Fwww.onebike.ro%252Fbiciclete%252Fax-butuc%3B200%3B250
Poate te ajuta imaginile,te sfatuiesc sa mergi la un atelier sa-ti monteze corect piesele pe ax si sa il stranga si corect.