Regarding the backrest, couldn't agree more about using a stainless washer under the screw that holds the shaft in position. I did exactly the same thing myself as I believed over time if i didn't the continual small movements would eventually stress the threaded area and crack or break this anchor point.

I've also mentioned this before but I don't think it can be said often enough. It took me about 3k miles for my seat to really mould to MY shape. My experience with buying a new seat saw me begin to doubt the benefit of paying so much for the Corbin. Its not that it wasn't more comfortable than the stock seat but was expecting more for big bucks I'd spent. Then there was this annoying pressure point right on my coccyx or tailbone where it felt like the foam was to thin in that area and that part of my anatomy was sitting fair on the area that held the backrest in place. So initially all wasn't looking that good for my Corbin. I even bought an airhawk which other than the backrest was defeating the purpose of the Corbin in the first place.

Also, I missed the special position Corbin gave me of feeling like I was riding as part of my bike and not just on it. So I persevered and eventually every pressure point just disappeared. Since then I've sold the airhawk and count my lucky stars every time I use the Corbin. I guess trusting Corbin's r&d dept paid off.

Btw, I never got asked any sizing questions either


Staintune Pipes, K&N Pods, 45 pilots, TBS needles and 145 mains.