The SUMO III is CNC machined from thick 6061 Aluminum with a simple and super strong design and is compatible with our Thermalite sprocket guard sold separately.Bore: 15/16”-24mm. Thickness: 6.0mm. Adaptors: For 22mm & 19mm spindles included. Sizes: 25 or 28 tooth. Weight: 2.3oz (25t).
