actually I cant believe i didn't notice but my girlfriends is a little different has drop bars and what looks like lesser quality derailers then the suntour 4000. her are shimano, but I cant quite make out the sub catagory. sugino vp cranks, virtually the same bike only taller and a road bike no name listed just says bianchi and has the Campione stickers, cro-mo. I've got more to talk about so please get back to me. my bianchis have always had little mysteries behind them and I never knew the specifics