Originally Posted by
terrymorse
Specialized advertises the Tarmac as "barely UCI legal".
About their Aethos, Specialized brags "we broke those sacred UCI rules too...The lightest disc road frame ever produced with builds as light as 5.9kg".
So there's another UCI-illegal bike.
2 riders in my club have the Aethos. I don't know how much they spent but neither went full weight-weenie. They both say they love the bike and I believe them.