One pair of Carl Douglas Aussie Rail track in 86 cm (33.85") with hardware. Composite Engineering - Van Dusen Racing Boats uses Carl Douglas AussieRail slides in all of our new boats. 

Standard length is 86 cm, which fits all Advantage shells. We can cut them down to 81 cm (~32 inches) if you wish but we no longer order 81 cm from Carl Douglas due to shipping cost. Please write "cut down to 81 cm" in the notes section. The price is the same. Call if you have questions. 

The "un-notched" distinction given to these tracks denotes that they are for Advantage shells. They also fit our heavyweight Traditional shells (which have a wider cockpit than midweight and lightweight Traditional shells) and all Traditional shells that are outfitted with a wing rigger (thus the cockpit has no knees). Notched tracks are milled to account for the central knee inside the cockpit of our lightweight and midweight traditional shells with tube riggers. 

** Please note that shipping oversize packages has become more expensive. If we find a more affordable way to ship this product, we will reimburse you. 

** Also note that we now order these through Durham Boat Company / Dreher instead of Carl Douglas in the UK due to oversee shipping cost and tariffs. Dreher may offer a better shipping price so feel free to order from them directly. See https://www.durhamboat.com/product/carl-douglas-aussierail-slides/