We have the support now used a few times (for a young dog Labrador, approximately 25 kg). You made a very strong impression. The mounting on the frame of the wheel (28 "men's Treckingrad, 26mm diameter frame spar seatpost) worked well. The included plastic sleeves resemble the margin under the mounting bracket further the good (had three sleeves in between slide). However, the holder rotates on the sleeves - therefore a star deduction. Now have a sleeve replaced by the also enclosed rubber pad. It seems to keep better. Bin thus still experimenting. A BUY recommendation I give but definitely.
