As a result of proprietary Stealth Optimum Composite Resonant Ratio (OCRR) technology, the Stealth aero frame will take you to the podium. The head tube and seat tubes are all carbon with NO alloy inserts. The enhanced carbon construction is light, stiff, and extremely strong. Extraordinary advances in composite engineering allow us to make a full carbon chain stay including the drop outs. The drop outs are all carbon! No alloy rear fork ends. The reinforced bottom bracket shell and stiff, 100 mm wide, chain stays yield a solid performer. The carbon drop outs are rear entry with an alloy replaceable hanger. This makes loading the wheel and adjusting a snap. The cable routing is internal via internal integrated sleeves. The cables thread effortlessly through the frame. The Stealth carbon frame absorbs bumps and harsh road vibration effortlessly. Stiff yet compliant, highly maneuverable, and fast! It is undeniable. Whether you say it is slippery or sexy, performance and comfort is what it is all about. We hear it over and over - this bike is fast!".."It feels like it has a lower center of gravity"..."It handles like it is on rails!"�.�it�s the best ride I�ve ever experienced�. We agree. It is the concept behind the design followed by the implementation and strict quality control. If you are looking for a frame that is sexy, exotic, and rides like it�s on rails, the bp Stealth model Stealth OCRR is the frame for you. Frame requirements - Bottom Bracket: English 68 x 113 mm (FSA

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