The Command Post Ircc has all the benefits of our Command Post IR, but with Cruiser Control technology. And with 10 micro-adjust positions, you'll always be able to find just the right one for descending or climbing. At a Glance Patented mechanical locking system with the addition of Cruiser Control Technology. Cruiser Control technology features added positions in the cruiser control range. Bonded lightweight aluminum micro-adjustable “alien” style head. Dual-keyway system eliminates saddle wiggle. Energized triple-lip wiper prevents contamination. Durable zero-gap, dual-lip x-ring internal seal ensures long-term durability. 30.9mm and 31.6mm seatpost diameters. Three lengths of travel: 75mm 100mm