Originally Posted by
AngelPedaller
Go for a Tiagra 4650, 105 5700 full crank and don't bother changing chainrings. A 34t 130BCD chainring would cost more than a decently used 10sp/9sp compact crank in marketplace....
A 34T, 130mm BCD ring would actually be an impossibility, at least with 1/2" chain pitch. 39T is the smallest 130mm BCD ring. For a 34T ring, you need a 110mm BCD arm, or smaller.