Specialized Hardrock Sport Disc 2004 And identit Dr Jekyll
Well you definetely got a good deal, i actually work in halfords and i get to build and rate all the bike, i gave it 6 out of 10 overall, its a good bike component wise but if your doing jumps and are a beginner i would've recommended a hardtail.
I can't see why you think it's good value for money, when to be honset it's a complete rip off. The components are pretty wank for the money really, but the frame is alright.
Yes you can take it into any Halfords shop for the free service.
By jumping it, you have allready invalidated any warrenty that Halfords offer, which wasn't the smartest thing you could have done. If/when you take it in, don't mention you've jumped it...