The lessons of the Project California RCA have now been applied to the R3. Using the Squoval™ 3 family of tube shapes, the latest R3 saves you more than 7 watts while increasing more torsional stiffness for precise handling. Sleek, internal Future-Proof cable routing enables easy setup and maintenance whether you’re running mechanical, electronic, or hydraulic lines. Bottom line: the renowned ride quality of the R3 has been defined even further to give you more. More aero. More road. More machine.