Originally Posted by
mcours2006
They're computers, NOT bike parts. Software that's developed for them keep getting more complex and thus require more processing power, more memory, more robust OS, etc. How has cycling changed in the last, oh say, 50 years, where you need disc brakes or your bike becomes obsolete?
I mean really, we should still be just fine with steel rims and Campag Delta brakes. Hell, the Strong Men of the TdF used to climb those mountains with a single-speed.