absoluteBLACK has unveiled its latest innovation in braking technology: the RAVEN SL and RAVEN GT full-floating disc rotors. These rotors represent the culmination of over a decade of research into rotor perforation patterns and their impact on braking performance.<\/p>\n
Design Philosophy<\/strong><\/p>\n The primary objective behind the RAVEN series is to ensure an even distribution of steel across the rotor’s friction track. This design approach aims to mitigate localized overheating and uneven wear, thereby enhancing braking efficiency and longevity. By analyzing the friction track as hundreds of circular paths, absoluteBLACK has meticulously calculated the steel distribution, resulting in a rotor pattern that, while seemingly uneven, offers consistent braking and thermal behavior. (absoluteblack.cc<\/a>)<\/p>\n Construction and Materials<\/strong><\/p>\n Both the RAVEN SL and RAVEN GT feature a two-piece full-floating construction. This design allows the stainless-steel friction ring to expand relative to the carrier as temperatures rise, effectively limiting distortion during repeated heating and cooling cycles. The RAVEN SL is tailored for riders prioritizing low weight, while the RAVEN GT incorporates over 500 smaller perforations and additional material to provide greater thermal capacity under sustained braking. (bikebiz.com<\/a>)<\/p>\n Performance Testing<\/strong><\/p>\n Independent testing by the German bicycle testing laboratory EFBE Pr\u00fcftechnik GmbH has demonstrated the RAVEN rotors’ impressive performance. In heat-resistance tests, the absoluteBLACK combination dissipated 92.7 Wh of braking energy, closely matching the 92.9 Wh dissipated by a Shimano Dura-Ace reference combination under identical conditions. Furthermore, brake torque measurements revealed that the RAVEN rotors, when paired with GRAPHENpads, generated 241 Nm at 140 N lever force, increasing to 274 Nm at 160 N. In comparison, the Dura-Ace reference combination produced 211 Nm at 140 N, with further lever travel limited by contact with the handlebar. (bikebiz.com<\/a>)<\/p>\n Specifications and Availability<\/strong><\/p>\n The RAVEN SL 160mm rotor weighs a claimed 85g, while the RAVEN GT 160mm rotor weighs 99g. Center Lock options include the RAVEN SL CTRL 140mm at 81g, RAVEN SL CTRL 160mm at 94g, and RAVEN GT CTRL 160mm at 108g. These rotors are available directly from absoluteBLACK and through selected dealers. (bikebiz.com<\/a>)<\/p>\n In summary, the RAVEN SL and RAVEN GT full-floating disc rotors from absoluteBLACK offer cyclists advanced braking performance through innovative design and rigorous testing, setting a new standard in rotor technology. <\/p>\n