I'm purchasing a bike for my 6-year-old son. We've narrowed it down to the '13 Redline Raid 20 or the '13 Specialized Boy's Hotrock 20 Coaster. Our son rides mostly on neighborhood streets on a daily basis...but he is hard on the bike (his current cheap starter bike is falling apart from excessive wear) so I want to find a high quality bike that will last. Any opinions would be appreciated!