Unfortunately this fender is useless for when used with the SMP Drakon saddle. It is a great idea but not a great design. Went with a different but similar low profile fender and am very pleased.
The Big Fender was simple to install. It relies on the seat support to provide a mount and can twist as it is only attached by wedging into the seat frame.
I have two of these, one lives on a bike overseas. I bought a second one, and it is even better, they changed the material on the strap that cinches the fender to the seat post, and it holds better than the original, and the company then replaced the strap for my old one. Excellent.
Got this rear fender to match the Origami front fender on my CX bike that doesn't have fender mounts as I ride this bike in the wet off season and gravel rides so looking for something unobtrusive yet solid. Lightweight and solid but deducted a star as the strap that helps lock it to the seat tube tends to fall off when not in use as I take it off when carrying bike on a rack, etc.
This rear fender is very easy to set up and adjust, and offers excellent protection against rear wheel spray. The seatpost grippper stays firmly in place, so you don't have to deal with it sliding mid-ride and exposing you back end to water. The fender itself also detachesre-attaches to the mounting bracket, which makes the fender versatile for changing conditions like a wet ride to work and a dry ride home.
Quick and easy to attach and take off. It could pose a problem if you have your seat slammed, but then you probably have other problems, if that's the case. Takes care of the back spray, but won't protect you from rear spray around your cranks, find a clip on fender that can do that and color me impressed.
I bought this fender to bring along on a week long tour. It easily snaps apart and back together. So, it's easy to pack in a bag. I used it a couple of times during the tour. It performed well, keeping my backside free from road spray.
I'm very happy with the protection this provides to my backside. Easy to take on and off and recommend not always leaving it on the bike. Very easy for a thief to remove.
Took a little bit of adjustment to get it properly snug so it didn't drift, but once adjusted correctly it barely moves. Does a good job keeping the mud off me. I'd buy it again.
Bought one of these to use on my hardtail MTB. Saved me from the dreaded skunk strip several times. Then I went to visit my son and could not take my bike, so I planned on riding his in the rain. Quick disconnect works great, one snap and it is on or off. I took the fender along and re-mounted it on his MTB for use while I was at his house. Decided to leave it with him, as he did not have a fender. Came home and ordered 2 more, a replacement for me and a gift for my other son. Now all 3 of us have this excellent rear fender on our MTBs. It would work equally well on a road bike with the seat post mounting strap.
I bought the fender for my road bike and after one use in a good rain my back was sprayed as much as ever, the fender is not long enough. I liked the idea of the easy attachment, but of it doesn't work, I could have attached a piece of poo for free and got the same results.
I was tired of scrubbing the dirt out of my expensive riding shorts and jerseys after only a few small puddles on the trail left a line of muck up my back. I thought I would try this fender and I am so glad I did. It went on to the seat post in about 1 minute. It stayed in place for a 15 mile single track ride. I hit some pretty muddy spots on the trail and when I got home my clothes were as clean as when I left, not counting the sweat. For under $15 you need to have one of these ready to throw on your bike when the trail is not going to be completely dry.