The cage is curved to suit smaller chainring sizes and shorter so it doesn't foul on the chain stay.
Interloc Racing Design wrote:Same performance level as the CD, but designed for triples. Will work with standard road triple cranks, but it optimized for smaller rings such as 48-36-24t or 50-36-26, which is now possible with our Triple-Lizer ring.
Why? Though many cyclists strive to look like the pros, there's a growing realization that huge gears are not ideal for the majority of roadies.
• Braze-on style.
• The Alpina-d for drop bar bikes