This is the second spring we apply this seat. When we first bought
it, it spent one month in our garage; since it didn't match on my Trek 3700 or
my husband's Giant Boulder Se. Finally my husband buy longer bolt in hardware
store and attached it to Giant. To attach the seat he removed fast release seat
bolt and replaced it with longer one from hardware store (provided one was to
wide for bike wholes, and the one on the fast release system on bike was to
short. It too took a moderate fiddling with attaching to the wheel; since of
the derailleur system. After being installed the seat is extremely sturdy and
secure. Our child enjoys it. We go riding every day. It too has leg protectors,
that is excellent. Be careful with attaching the straps, they are flimsy. You necessitate
to get applied to rear weight. It takes little practice. The seat is extremely close
to bike seat, and our 22 months old boy who is 34 3/4" high was kicking
our legs with his legs. Now we taught him to keep his feet in provided slots
and it is fine now (but we ended up with bruises before which).