The TCS Malice uses the most advanced drilling pattern of any bicycle rim on the market today. Our new 4D drilling process creates the optimal interface between spoke & rim. This exact angle reduces binding & the need for eyelets. The I-Beam is distinctive, centrally located vertical support counteracts spoke loads & provides torsional rigidity. Our new G69 material is super light w/ superior strength. These rims are designed & drilled for 3 cross specifically. Each TCS Malice rim comes w/ a valve plug for the unused valve hole (TCS Malice rim drilled for both TCS & Schrader) Material: 6069 T6 (30% stronger than 6061 T6) Walls: Double Joint: Welded Weight: 336grams / 11.9oz Diameter: 406 Drilling: 36H Valve: TCS & SV Sidewall: CNC’d ERD: 395 Width 28.5mm Includes Rim Strip