Howdy folks. I am a complete newb, no denial of that here. But I went to a bike store and was strongly advised to get a Specialized Hardrock Sport Disc 29. I loved it during my short test ride, so smooth and strong. I left the store and check it online for reviews and such, and like what I see. But there's also the Specialized Hardrock Disc 29 (the non-sport version) which cost 100 dollars less but also seems to be well reviewed... I can't see WHY there is a price difference though, the stats seem the same to my newb eyes. Can anyone advise me as to whether the Sport version is a necessary purchase for an overweight male who is purchasing a bike for a commute over basically normal roads, or would the non-sport be sufficient? Thanks to any who reply. 8^)