The Rolf Prima Carbon TT wheel system features the same hub, spoke and rim spec as the TdF58, but uses only 10 bladed spokes in the front wheel. Although not UCI legal for mass start road events, it's the ultimate speed choice for fast time trials on the road or in triathlons. model: Carbon TT wheel size: 700c category: aerodynamic weight: 1295g set [537g/758g] spoke count: bladed 10F/12R rim: tubular hubs: Campagnolo and Shimano compatible hubset: Carbon TT wheel systems orbit around a proprietary hub designed and manufactured in the USA. Front hubs feature a unique 86mm wide flange placement which increases lateral wheel stiffness by nearly 20%. Patented Differential Flange Diameter™ on the rear hub lends a mechanical advantage effectively doubling the number of functional pulling spokes; increasing wheel durability. Black, CNC machined hub shells with oversized axles provide high strength, stiffness and light weight. Optimized flange contours provide full spoke elbow support, increasing spoke life. Hubs also feature precision cartridge bearings with low drag supplementary contact seals and bearing preload adjustment on both front and rear hub shells. freehub mechanism: CNC machined Titanium freehub body has 3 sprung steel pawls for a bomb-proof torque transfer system. Pawls are driven by 3 hardened steel leaf springs. The system is strong, simple and dependable. rims: At 395 grams, this proprietary, deep-section carbon fiber rim is light and stiff. The 58mm tall single cavity rim section offers superior lateral and torsional stiffness. Brake sidewalls are reinforced with fiberglass for improved braking performance and durability. The combination of low spoke count, exceptional aerodynamic performance and minimal rotating weight makes the Carbon TT wheel system the fastest tubular wheelset available in its category. spoke & nipple: Black custom bladed, 14 gauge spokes and internal alloy nipples with nylon inserts contribute to clean aerodynamic performance and superior, long-term durability. Patented, Jacketed Nipple Design™ and Dish Reducing design™ reduce spoke bending loads and rear wheel dish to increase spoke fatigue life. extras: Rolf Prima Carbon TT wheel systems include alloy valve extenders and titanium quick release skewers (89g / set). All Rolf Prima wheel systems are protected by one or more of the following US Patents: 5,931,544; 5,938,293; 6,024,414; 5,947,565; 6,244,667 and 6,497,042. Rolf Prima wheel systems are also protected by several foreign patents including Canadian Patent 2,136,053 with others pending. FOR IMMEDIATE RELEASE, EUGENE, OR, Jan 30, 2006 ROLF PRIMA INTRODUCES ITS FASTEST WHEELS EVER Eugene, OR- After introducing its first Carbon tubular wheel system late last summer, Rolf Prima has developed an even faster wheel and reduced the spoke counts even further. The new Carbon TdF58 wheel system uses a 58mm tall custom tubular rim design using an exclusive Nodal Reinforcement ™ process that allows the use of higher spoke tensions to maintain wheel stiffness. With only 12 bladed stainless steel spokes (front and rear) paired together at the rim using Rolf's patented Paired Spoke Technology™ these wheels are among the lightest and fastest wheels available. At only 1310 grams per set these hand-built wheels are UCI approved for mass start events and retail for $2399 per set. Also new for 2006 is the Carbon TT wheel system which is based largely on the Carbon TdF58 platform, but uses only 10 spokes in the front wheel and 12 in the rear making it the lowest spoke count wire tensioned wheel system in the history of wheels. These wheels are the ultimate choice for elite triathletes and road time trialers says Rolf Prima's marketing director, T.J. Walsh. Look for these wheels to make their professional debut on the ITU race circuit under 2005 World #1 ranked triathlete Hunter Kemper and 2003 US Ironman champion, Michael Lovato. The Carbon TT wheelset tips the scales at only 1295 grams and retails for $2399. All Rolf Prima carbon wheel systems are engineered to advance lightweight aerodynamic performance and were developed for individuals with top-level performance in mind. Rolf Dietrich is the inventor of the paired-spoke bicycle wheel design. All Rolf Prima wheel systems are hand-built in Eugene, Oregon and are protected by numerous patents in the US and other countries with several non-exclusive license agreements in force.