Kibblewhite exhaust valves are a great upgrade from your O.E.M. motorcycle valves due to their superior performance and outstanding reliability. All KPMI Black Diamond stainless steel valves are impregnated by a special German process to a depth of 0.002", with a surface build up of 0.0002". This "Black Diamond" process improves wear properties, reduces friction, and provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating. Each valve is designed using Finite Element Analysis software, and profiles are tested on Kibblewhites computerized flow bench. Black Diamond Valves are light, strong, one-piece forgings with profiles that provide excellent flow characteristics and will outlast titanium valves.Detailed Specifications: Type: Valve, exhaust, Black Diamond. Material: Stainless steel. Quantity: 1. Head diameter: 1.221" / 31.01 mm. Stem diameter: 0.2150". Tulip: 20. Overall length: 3.030". Remarks: Standard head diameter. Notes: Kibblewhite valves are sold individually. Must use KPMI spring kit with these valves. Not compatible with O.E.M. springs.

The Comet helmet model features an all new aerodynamic shell with multiple air intake and exhaust vents for cool air circulation, injection molded visor and new, hi-flow mount vent design. Our secure-lock liner and new contoured cheek pads incorporate a snap system for ease of removal and features plush aero-cool and airmesh fabrics. All new injection molded poly carbonate shell, ABS mouth vent and closable rear top vents. Full EPS lined, including chin bar provides superior protection. Snap-in liner is removable/washable and made with moisture wicking fabrics. Multiple front shell and liner intake vents, air channeled EPS liner and rear exhaust vents. Clear UV coated vibrant graphics in popular colorways to match our latest gear. Meets Snell 2010 and DOT standard.

Troy Lee Designs is proud and excited to announce a multi-year agreement with American Honda to become the official apparel supplier to the Factory Honda Supercross and Motocross race team for the 2012 season and beyond. 80% pre-laundered cotton (10 ounce) / 20% polyester blend fleece. Pull-over style. Split stitch double needle sewing on all seams. Twill neck tape. Honda Wing logo.