TerraTrike and TerraCycle are two different companies, but we share a similar vision: enjoyable and efficient recumbent experiences. That's why we make TerraCycle TerraTrike Idler Kits. Our kits are specifically designed for TerraTrike trikes and they'll give you a boost of power and smooth out the return line. Available in Elite or Sport, our kits are sure to add efficiency and comfort to your ride in a durable and beautiful package. Double the Terra, double the fun.