The Unior manual, written by Canadian author and top mechanic Denise Belzil, is a detailed book containing "how to..." instructions, as well as enriched with images and additional advice for both professional and amateur bicycle mechanics.
- Denise has been in the bicycle mechanic industry for nearly 30 years and has become one of the top experts in North America. In the 1990s, she founded her first bicycle mechanic school in Montreal, Techno Cycle, where she has taught countless mechanics during her career.
- Volume I describes hubs, bottom brackets and headsets, running to 274 pages. Volume II is dedicated to the transmission and braking system. It consists of 318 pages.
- The book is printed on high quality laminated paper with a spiral binding, so that it is extremely handy to be used during any maintenance operation on bicycles.
- The book is available in two versions: in English and in French.