Hi, im new to trials myself, well about 6 weeks now! I found i was having problems with my track standing and back wheel hops untill i got my self a new freewheel. I found i will have nearly an inch of play before my freewheel would engage so i brought a new TRY-ALL 108.9 and all i can say is, WOW what a differance, it made my learning curve so much quicker because i felt i had more control over the bike! hope this helps lol