This is a set of JConcepts Mono Front Wheels in White with 12mm Hex. for the Team Associated B4.1, and the Kyosho RB5 Buggies. FEATURES: Maximum size allowed under ROAR rules Constructed of plastic with slight concave dish shaped design INCLUDES: Four JConcepts Mono Front Wheels in White with 12mm Hex REQUIRES: #2135 12mm Front Hex Adapters (JCOC2135) if using on B4.1 SPECS: Width: 0.98" (25mm) Diameter: 2.2" (56mm) Hex Size: 12mm jxs 02/03/12 ir/jxs