Well I ordered the backrest with very high intentions and was very disappointed. Product did not fit well at all, you cant tighten the latch for the back rest. In fact in the directions it says to use electric tape to make it fit. I installed it on my bike and it flexed a good 3+ inches when I leaned on it. I had high hopes for this product and really need a good back rest for my CVO , but it does absolutely nothing for support.
Im suprised so many fellow CVO owners rave about the product, did absolutely nothing for me.
Maybe I had a defective unit and they will come out with an upgrade, stock seat provides a little back support which I will do with until something better comes along.
Sorry to hear your results.
Did you get the frame from Grass Hopper? I know there was another source wanting exclusive rights to market this and while he replaced some of the original frames that were made of lighter material, these did not provide support, he may have sent you one of the originals.
Also the section that does attach the backrest does slide in and i did put one thickness/wrap of a black plastic tape around that surface and there is still slight movement but it doesn't affect the support or security etc.
Read some of the early posts about the first weaker frames that were mostly replaced.
The other option would be to change the seat with one that has a backrest, but first i would insure he sent you the correct, improved frame. If not contact your vendor.
Grass Hopper, frame 60 dollars, broadtracker/kutter HD, HD passenger backrest 104 dollars, the new frame, because i asked Grass Hopper is made of thicker Stainless Steel and then painted black, mine is sturdy.
Good luck.