Bicycle brake system having a flexible disk

A brake system for a bicycle having a frame, the brake system comprising:

• a flexible brake disk;
• a fixed mount single acting caliper mounted on the bicycle frame in a position to straddle the flexible brake disk;
• a fixed brake pad mounted on one side of the caliper;
• a moveable brake pad mounted on the other side of the caliper;
• and
• a brake actuator on the moveable brake pad side of the brake disk in alignment with the flexible brake disk, wherein the flexible brake disk is flexed into engagement with the fixed brake pad upon actuation of the brake actuator.

A brake system for a bicycle having a frame, the brake system comprising:

• a flexible brake disk including an inner area, an outer periphery and a plurality of curved legs, the inner area being fixed with respect to a rotatable wheel hub, the outer periphery including an outer friction contact ring, the plurality of curved legs supporting the outer friction contact ring, wherein the curved legs are shaped to bend in compliance with expansion of the outer friction contact ring which occurs when the outer friction contact ring is heated;
• a fixed mount single acting caliper mounted on the bicycle frame in a position to straddle the outer periphery of the flexible brake disk;
• a fixed brake pad mounted on one side of the caliper;
• a moveable brake pad mounted on the other side of the caliper;
• and
• a brake actuator piston on the moveable brake pad side of the brake disk in alignment with the outer periphery of the flexible brake disk, wherein the brake disk is located with a first clearance between the fixed brake pad and the brake disk and a second clearance between the moveable brake pad and the brake disk when the brake actuator is not actuated, and wherein the moveable brake pad is moved into contact with the outer friction contact ring and the outer friction contact ring is flexed into engagement with the fixed brake pad upon actuation of the brake actuator piston.