Quote Originally Posted by Aggie_Ama View Post
I rode on a bike with Sora for 2.5 years. This bike took me through numerous metric centuries, 100 miles most weekends, one imperial century and two MS150's (actually 180 in two days) in a hilly area of Texas. While you will find a lot of snobbery towards Sora, with tune ups it can serve you well. I put over 4,000 miles on the drivetrain and only changed tires and chains. She was still shifting well when I upgraded.

You could upgrade but Bike4Ever is honest- it would cost a lot. IMO ride the heavier bike to get stronger, learn bike handling and figure out what you like then buy a whole new bike. My much lighter bike really didn't make me much faster (maybe .5 mph), it was training and riding.

Why do you want to upgrade? Does the bike not fit?
I rode my Trek 1000 for 2 years and about 4,000 miles. It had Shimano Tiagra components on it.

After 2 years I knew what I wanted... and considered upgrading the components. But, spending as much as I would have spent on upgrading everything... well, I felt a little silly doing it to such an inexpensive frame.

So, I got a new bike. I knew I wanted full carbon with all Ultegra components and went looking for it.

When I got my new spiffy bike, I figured I would be fast. I too had a 15-16 mph average. I figured I would get up to a 17-18 mph average easy.

WRONG! I had to WORK to get my average up. And it's work I could have done on my Trek 1000 and I'm sure I would have been just as fast on my Trek if I had worked for it some.

Sure, a nice bike is nice to ride... but it doesn't add a whole lot in the way of speed. The engine has to make it go faster.