170 pages and more than 300 illustrations and charts, size 8.25 x 10.75 inches. This manual is a compilation of 6 publications. It includes the September 1974 workshop manual for the Penton 100cc 'Berkshire' and the 125cc 'Six Day' models plus three Penton illustrated parts lists for those same models. In addition, it also includes the 1969 Floyd Clymer 100cc and 125cc Sachs engines workshop manual plus an illustrated Sachs engine parts list. The off-road motorcycle revolution was at its peak by the mid 1960's and while the predominance of those motorcycles were imports, Maico, Hodaka, Bultaco, Husqvarna, Ducati (to name just a few) there were no USA manufacturers. This situation changed when entrepreneur John Penton struck a deal with KTM to produce a series of off-road motorcycles to his specification. This collaboration resulted in the birth of Penton motorcycles, namely the 100cc 'Berkshire' and the 125cc 'Six Day' models. Today, Penton motorcycles are highly sought after classics from the mid 1960's off-road revolution. There are few, if any, manuals that deal with the Penton-KTM-Sachs motorcycles and those that are available are lacking the detail required to repair, maintain and overhaul the Sachs engines. Floyd Clymer was the first to publish an 'in-depth' workshop manual for the 100cc and 125cc Sachs engines and it is included in this publication The combination of the Penton and Clymer manuals yields a comprehensive workshop manual and the inclusion of the illustrated parts list for both manufacturers will be a major assistance in the repair and/or restoration of the Penton 'Berkshire' and 'Six Day' models. Unfortunately, owners of these early Penton motorcycles are subjected to considerable confusion surrounding the appropriate selection of the multitude of originals and reprints of the various manuals and parts lists that have recently flooded the marketplace. We encourage you to exercise caution when purchasing a manual for your motorcycle or automobile as many of the reprints found on internet websites are from 'bedroom sellers' at enticingly low prices by individuals that really have no idea what they are selling. Many are nothing more than poor quality, comb-bound photocopies that are scanned and printed complete with greasy pages and thumbprints and, as such, are deceptively described as 'pre-owned', 'used' or even 'refurbished'. In addition, they are often advertised for the incorrect series and/or model years.