The Gippieme "Sprint" seatpost is a one bolt type. Recently it has begun slipping allowing the saddle to tilt back. I can start the ride out with it being level and by the time I get home, it has tilted a few degrees. I have it quite snug but it still slips. Any suggestions on what I can do to eliminate this?
Nice 25.0 seatposts are far and few these days. I'd like a 2 bolt type but I don't know if this type existed in later times. I have a vintage 3T that also slips so my back-up is.