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by Neal Rogers
March 21, 2018
In today’s Daily News Digest: Valverde wins Stage 2 sprint at Catalunya, moves into GC lead; Canadian Adam de Vos (Rally Cycling) solos to Stage 3 win, GC lead at Tour de Langkawi; Cape Epic: Cannondale men, Specialized women win again on Stage 2; Autonomous Uber car kills cyclist walking bike across road in Arizona; Stage 3 summit finish at Volta a Catalunya is cancelled; 2018 Colorado Classic announces route details in Vail; Shimano patents disc rotor cover; Steele von Hoff back racing four weeks after breaking his backl Santa Cruz bring back Blur and revamp HighBall cross-country bikes; RockyMounts issues voluntary recall of SplitRail and MonoRail hitch racks; Video: World champ Jolanda Neff’s impressive wheelie; Video: 1928 Penny Farthing Race in London.
To the racers worried about crashing into a pile of spinning disc rotors: Shimano hears you. The company has filed for a patent on a rotor cover that limits contact with the rotor from both the front and the side, all but eliminating the possibility of direct contact with skin.
Rotor covers have been thrown about as a solution to the safety concerns associated with road disc brakes, but certain drawbacks need to be overcome. Any rotor cover is going to add weight, likely increase aerodynamic drag, and possibly affect cooling.
The Shimano cover concept addresses the heat issue, but appears to make few concessions to aerodynamics. It mounts just below a flat mount disc caliper and wraps around a disc rotor and incorporates large, square-edged holes designed to “effectively [dissipate] heat of the disc brake rotor by drawing air into an inner side of the rotor cover,” according to the patent filing.
A patent drawing can bear little resemblance to the final product, and it’s likely that a production Shimano rotor cover would be more shapely and aerodynamic. If the company makes it at all, that is.
Read more from the patent application.