The way i've done it is save up for a nice bike that you know is nice but other people don't and buy that, because then you will get a really nice bike but because it hasn't got flashy pink rims or that then there will be a less chance of someone stealing it. I would suggest an onza of some sort but check the weight because weight is a killer. I would suggest getting an onza T-pro or an onza pro there isn't much difference really, the only differences that they have is that the onza T-pro has a longer wheelbase[length of frame basically]and the onza pro has onza dual pull cable disc brakes which personally, i haven't tried myself. There are other bikes in the range like the Onza Blade or the Onza Comp but they are very expensive and for that money i would look for another make of bike, like Echo or Koxx You can easily check the specs on either the Onza website or Tarty bikes. P.S. I would have given you links to these but i haven't quite figured out how to post links yet. Sorry for that. Hope this helps.