Roller Assembly OLS# 112183 T601 and T701 Lower 80mm Concentric October 3, 2022 / Roller Assembly OLS# 112183 T601 and T701 Lower 80mm Concentric Product Details Additional Information Roller Diameter: 80 mm (3.15?) Pin Type: concentric Car Frame Model: T601 and T701 – Lower Roller (anodized finish) Original Date of Supply: January 2016 – Present