This collection may look like "just a couple of books" dedicated to your Royal Enfield. However, this set is in fact a collection of 5 books! The Super Factory Workshop Manual contains all 3 of the most current Factory Service Manuals that address the 4 and 5-speed vintage replica Enfield motorcycles, both Original and Lean-burn AVL engines! Each addresses different aspects, with some overlap as well. To top it off, we've added the current Factory Parts Catalog for your model. They clearly show exploded views of the motorcycle parts, and are invaluable when assembling or disassembling your British style Enfield motorcycle and especially when ordering the correct parts.