This is an RGS parts manual. PRGS It is applicable to all 120 engines such as the 120 Jota, RGA, SFC1000 and Corsa. To fully cover the last two you would also need the 120 additions manual. The general layout pictures and drawings of this manual are a mess, there is some hand drawn pictures and it can be seen that by the time Laverda got round to doing this one they must have known the end was nigh. Apart from that it is still a very useful boo to have if you are working on one of these 120 engines.