Merlin Extralight mid 1990's has Dura Ace rear derailleure, breaks, and STI shifters. The crank is Shimano compact 50 - 34 and 12-28 rear. Current saddle is a Fizik Aliante. This is a wonderful bike that I had over ten years. As far as I can tell it has never been crashed. Because of back problems I had to replace this bike with a more upright riding position bike, a Trek Madone 6 series H 3, I wish I could ride the Merlin.