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 Standard on Tandem Pro.
