RIM AN (AM) 20 406x25 RUNAWAY 36 M-BK/MSW Premium double walled, welded joint rim intended for all around use. Intended for a non traditional center cross lacing pattern. Item Specifications: Size: 20in, Color: Black, Weight: 425g, Width OD: 31.5, Side: MSW, Drill: 36, ERD: 391, Wall: Dbl, Valve: SV, Model: Runaway, Profile: 13.5, Tire Compatibility: Tube Only, ISO: 406, Width ID: 25, Brand: Alienation,