scoobydoo

Thinking of getting into trials and looking for some advice on what bike to get . I have been driving road bikes for years and I do a bit of Enduro riding as well , previously had a crf 450 and my current bike is a tm 300 Enduro. I have been looking around at second hand bikes , was thing of a 250 cc bike , but I have seen some 280 and 300 advertised too . Would the 280 / 300 be too powerfully for my first trials bike .