I've been riding with the Seat Concepts seat kit on my WR250R (and my WR250X) for most of the summer. I've been using the low foam version, which is about 3/4" lower than stock. It also happens to be wider (9 3/4" at its widest point), and has slightly softer foam than the stock seat. The combination of softer foam and wider seat surface make it really comfortable, especially for longer rides. I've done several 250+ mile days and this seat is a HUGE improvement over the stock WR250R seat. The lower seat height also gives me more confidence when riding off road, and I'm now much more comfortable pulling up to stop signs and stop lights when riding on the road.
My seat has the black gripper/carbon seat cover, which is pretty grippy compared to the stock seat. I like it, but if you prefer sliding around a little more on the seat, I'd recommend the all carbon seat cover, which still offers a little bit of grip, but you can move around better. If you do a lot of long rides on your WR250R/X and want a lower and wider seat, the Seat Concepts Seat with low seat foam option is definitely the way to go.
Cover Material Options:
The Black Gripper/Carbon cover has gripper material on top of seat and a carbon vinyl material on the sides. It's great for aggressive riding or being held in place. If you like to slide around, it might not be the best choice. The all carbon cover is a black vinyl that has a carbon fiber pattern made into the surface for a good look. There is a texture that acts like a very light gripper material and it's easier to move around on the seat.
Foam Height Options:
The Low Height foam is about 3/4" lower than stock, but wider. The Standard Height foam is the same height as stock, but wider.
What You Get:
The kit includes seat cover and replacement foam. It DOES NOT include the seat pan. Most people will use their stock seat pan, and install the Seat Concepts foam and seat cover on it.
Where To Buy:
• WR250R/X Seat Concepts Seat Kit at SoloRacer.com