ICE stands for Inspired Cycle Engineering, and their trikes are fine machines. That's why high quality TerraCycle ICE Idler Kits are the perfect match. These kits will make your ride smoother, quieter and even improve performance. You'll notice the extra kick with a more efficient power side chain management system. Built tough, made to last, and easy on the eyes, an ICE Idler Kit from TerraCycle is just what the doctor ordered.