Some of us believe in the N+1 theory when it comes to bikes. That is, the correct number of bikes in our quiver is always one more than we've got, but Ridley flips that theory on its head with the Liz SL Disc Ultegra Complete Road Bike. This do-it-all endurance machine is capable of hammering centuries and hill sprints alike, and carries its strength through to race day when you're toeing the line with the podium on your mind. It manages to capture so many categories by combining a meticulous carbon layup with diamond constructed tubes that reduce aerodynamic drag, while elevating stiffness for putting the power down. Paired with Shimano's workhorse Ultegra drivetrain, the Liz SL Disc is well prepared for next season's pursuits. The Liz SL is built from a blend of 30t and 24t high-modulus carbon fiber, just like the Fenix SL. This particular model pairs its stiff frame with disc brakes, as opposed to the classic rim brakes. While they may scale in just a couple of grams heavier than their rim counterparts, the Ultegra 8000 brakes on this SL offer impeccable modulation, and the power to stop on a dime on the steepest pitches. For an extra dose of stiffness, Ridley opts for a beefy PressFit BB86 shell. The wide bottom bracket shell anchors the oversized drive spine, solidly transferring every bit of power to the drivetrain without any watt-sucking lateral movement. While this frame isn't billed as specifically aerodynamic, it does boast an integrated fork crown for a smooth transition between the head tube and fork that at least offers the appearance of aerodynamics. You'll enjoy some drag-reduction benefits over frames without the integrated fork crown, and it just plain looks cleaner.