I ordered Cascadia Fenders for my R1U 500 via a link on their support page, so they supposedly fit. However, the attachment points are not there, despite the phrase "500 has standard attachment points" for fenders and racks. I found holes near the back axle but none on the front. When I pointed out this problem to R1U they said it was probably a mistake on the support page. So now I have fenders that do not fit unless I can figure out a way to attach them. Anyone else using 3rd Party fenders? Any advice is appreciated. Thanks.