I've just resumed cycling for this year and I find my saddle keeps sliding back. No matter how much I tighten the allen bolt underneath it still wobbles a bit and the saddle slides back. I was out for 2.5 hours one day and I could have been home in 2 hours if I hadn't had to keep stopping and adjusting the saddle. How can I stop the saddle moving?
It wasn't a problem last year, except on the first ride.
