I bought a hybrid bike about one month ago. It's a BMC Alpenchallenge AC02 Tiagra. Have been having a blast on it to the point of considering to eventually get into road bikes
Full Specs can be seen here: http://www.bmc-switzerland.com/int-en/bikes/lifestyle/mountainroad-alpenchallenge-ac02-tiagra/
Chainwheel: Shimano Tiagra, 50-39-30T
Cassette: Shimano Tiagra, 11-34
Tyres: Continental Sport Contact II, 35mm
Rims: DT SWISS R522D
So the question is, if you were to do some upgrades what would you get?
I plan to get a road bike in 1.5-2 years time. In the mean time I'd like to use this one to train (likely uphilly stuff like http://www.cycling-challenge.com/col-de-la-faucille - over 1000m altitude). In terms of improving performance/handling/speed what kind of sensible upgrades can be done for a budgeted $500 tops?
Thanks in advance, would much appreciate your inputs!