Thinking of A change i Have A haibike Sduro Hard 9 In Excellent Condition Only About 400mls 20mths old UsedMostly On Greenlane And Cycle Tracks What Would it Be Worth? and What does everybody Think About The New Shimano E8000 Motor .As Good as The Yamaha Pw? was also looking at a Giant Dirt E1 Any Probs With them? Cheers