I just decided to get into biking for exercise and challenging actives. A short time ago I bought a used Trex 7000 from a relative. It's in pretty good shape but I found the after I adjusted the seat I lean so far forward while riding that a lot of my weight is resting on my wrists and my hands go numb. I took it to my LBS to find out what I could do to relieve the situation. They recommended that I get a handlebar stem extension and new ergo grips. The problem with this is that 3 of the cables have to be replaced. I paid about $175.00 for the bike and the LBS wants about $200.00 for new cables, stem extension, adjustable handlebar stem, grips, seat, and labor. They also showed me a new 2011 giant roam 1 for $479.00. By the way I'm 62 yrs old. The question is should I put the money int fixing a k20 yr. old Trex 7000 or be better off getting a bike like the giant roam 1?