Peptide nanotubes that assemble by H-bonded cyclic D/L peptides (DLCPs) have a great potential for construction of diverse nanomaterials. The rigid geometry and the tunability of the chemistry make them an intriguing building block for the rational design of nano-structured materials.¹ They have potential applications as drug-delivery vehicles or synthetic membrane penetrating protein/ion-channels. However, DLCPs have some limitations that could hinder their use as a functional nanomaterials or synthetic ion channels. DLCPS can have low aqueous solubility and it is difficult to control their self-assembly process resulting in nanotubes with indeterminate lengths. Prior research within our group has presented a potential solution to control the length of peptide nanorods through coupling of amino acid side-chains using copper-activated azide-alkyne cycloaddition and disulfide bonds.² This project presents another potential solution to the control of length of peptide nanorods, by tethering cyclic peptides to a linear anchor through formation of triazole, creating molecules known as the “Rack CP”. To date, a series of Rack CPs differing in their length have been synthesised, providing a potential nanomaterials with ease of tunability and further functionalisation. These Rack CPs are a starting point in generating a new class of DLCPs.