A hard-to-find book about Yamaha's favorite giant killer, the RD350/400.
This is the RD350/400 Performance Portfolio, covering the years 1972-1979. It's a 140 pages filled with tests, specs, history, hop-ups, maintenance and much more.
This book is new, never read. This is one of the famous Brooklands books, which are very hard to find (you won't find any in bookstores).
A great reference source or just for the reading pleasure.