Ergon GP1 Performance Grips Ergon’s original and ground breaking GP1 continues to set standards. Offering optimal pressure distribution and available in two sizes, it features a forged aluminum clamp for fast and secure installation. Adjustment of the support platform is achieved by simply loosening the clamp bolt and positioning the grip to the desired neutral position Details: Name GP1 Model for regular shifters, Gripshift and Rohloff / Nexus Weight / Size Small, Large Material Forged Aluminum Clamp Use Mountainbike, Touring The Size Difference: As hand size is different from person to person, Ergon manufactures the GP, GS and GA ranges in two sizes – Small and Large. This difference is in the diameter of the grip. The reason for this is that a larger hand is better able to grip a larger grip with less stress and effort. This is the same in reverse for small grip. A smaller hand needs a smaller grip to allow the hand to close around it. Of course, this is all also down to personal preference. Grip Compound – Made in Germany Ergon’s product development team does not only focus on Ergonomics material research is also a core theme. The demands and testing our products undergo meet those of the automotive industry, and far exceed the industry standard. Ergonomics, Product Design and Engineering – everything is done in-house in Germany. It is from this that successful projects have been born, such as our GreenLab initiative, which explores the use of sustainable materials. For 2011 we quietly introduced what is a major milestone in our development. All grips in the Performance Comfort Series were switched to a new rubber compound. As part of this process 39 rubber compounds were developed and tested. It was worth it, the new material- made in Germany – meets the highest standards, is longer lasting and worldwide is exclus