Hello,

I have been biking for 2 years and loving it. I sold my first bike as I didn't like it all that much the shifting was not working well even after taking it to multiple bike stores. My old bike was http://www.jamisbikes.com/usa/thebik...nturasport.pdf

I'm now looking at several different ideas to purchase a new bike. But before I go into that I am wondering if I should look at an entire carbon frame fork and seat post. I usually ride 5-6 days a week. 5 days is about 1 1/2 ride and the other 2 days can be upwards of 2 -3 hours. Average speed is about 18 mph.

Things I want on the new purchase is at least shimano 105 group set but I'm stuck on carbon and the budget got tighter last weekend when the washer decided to spring a leak and needed to be replaced. I will never be a racer as I mainly ride to keep in shape for the Air Force.

With my riding amounts would all carbon be worth the extra money? Should I look at just carbon fiber forks and seat post with an aluminum frame. I'm currently looking at this bike 2011 Orbea T105. I can get it for $1599 and believe it is a good price. Although would I be better off being less expensive and purchase a lower level of the orbea that is aluminum.

My last bikes weight was around 25 lbs and this obera I'm looking at is around 19 lbs. will I see a real difference.

Thanks for all your input and suggestions.