Minoura BH100S Bike Water Bottle Cage Holder - Fits 22mm to 29mm Seatposts - Perfect for Road Bikes, Mountain Bikes & Commuting

I bought this clamp and another to compare the two. After installing them both and using them, this one came up short. No matter how hard I tried to clamp it tight it would not hold at the angle I needed with a full water bottle in it. The other unit also was much simpler than this one and could be screwed down really tight compared to this one.