The Thule 516 - Prologue fork mount bike rack is an excellent value because it goes beyond merely carrying a bike securely.  The Prologue offers many features found on Thule's more expensive fork mounts.  The Prologue fits mountain bikes with disk brake calipers and is approved for high performance road bikes with carbon fiber forks.  The wheel tray fits thin road bike tires and mountain bike tires up to 2.6 inches wide, even with high profile rims.  Plus the wheel tray is long enough to accommodate long wheelbase bikes up to 48 inches. 

The Thule Prologue has got security covered as well, Thule's One-Key System allows you to purchase Thule lock cylinders in a key matched set.  A single Thule lock cylinder is all that's needed to lock the bicycle to the Prologue rack and at the same time lock the Prologue to the load bar.  Although the Prologue is priced lower than most carriers it still offers a high level of construction material. The head unit of the Prologue is built with high-strength engineering composite plastic and the wheel tray is one piece black powder-coated aluminum. 

The hardware included with the Prologue will attach to both Thule standard rectangle load bars and Yakima RoundBars.  The Prologue will attach to Thule's Rapid Aero load bars using the Thule Xadapt 9 hardware.  The Prologue does NOT work with the Thule AeroBlade load bars.

Product Technical Information