Recumbent

TerraTrike's 13t Deluxe Idler is designed for quiet operation and uniform wear. Long-wearing black Delrin material with pre-installed sealed bearing. - 63.5mm OD, 8mm ID (bearing ID), 15mm width - The larger OD of this idler may not fit older trikes or newer trikes in some locations - (best bet: replace your old idlers with the same OD replacement idler) - OEM replacement part