Originally Posted by RobbieTunes

Nope, pretty much the same design, I guess. F5 fit and finish look better, bolts definitely look better, more recessed (and look like steel) The cut-outs on the J and L are deeper, but not very precise, and the silver J and L is not polished, more like cloudy satin.

It will take me about 20 minutes to get the finish to be reflective, then another 10 to make it look like chrome, but it will be done. I've already got steel bolts in there. The OEM J and L bolts are OK for water bottle cages, not much else. Next time I get to Fastenal, I'll pick up some stainless bolts.