I've had an issue with various fork seals having a tight enough press fit in my 48mm forks. I had a pair of SKF that I used the past year by using a little Teflon tape on the outside of the seal. I decided to give the Synergy Seals a try. Installation was a little different but just followed the tips on the video. Pulling out the Teflon strip is a little tricky. Fork action is very good. Just a smooth as the SKF. Looking at the seals ,they are very simple in design. Everything is great so far.