These side entry cages are absolutely great. I have the carbon version and they are stiff and light. Holds your bottle snugly, but removal and seating are simple. They also feel extremely strong and durable -- when you put your bottle in you know the cage is just not going to break by the feel. I was given another leading bottle cage in carbon and it broke right at the point of the 'V'. These are absolutely the best cages i have ever used, and they look great with their minimalist design.