I jumped into Twinshock Trials a while back on a TY175...
havn't done enough of it for a while but its a hoot!
ride all day on the one bike,
low maintenance,
stop and talk with your mates,
but I am crap at it...
will get out there again this year on a TY250D {which is a pig!}
good fun!
would like to try classic road Racing also...