Since I assembled the bike with Record 11 speed, I didn't want to spend the money on another Record crank so I went with the cheaper Chorus compact. Some time ago I substituted the Record 11/23 cassette with the Chorus 12/29. Don't know if I'll try to sell the original drive train or keep it just in case I want to switch back. It may be nice to have since it only has about 300 miles on it.