B&H has the Sony HDR-AS15 action cam for $149 (reg. $209) in a kit that includes the waterproof case and the bike mount pack. The HDR-AS15 shoots 1080/60p video, as well as 720p video at 120fps for 4x slow motion (5x slow motion if your footage goes in a 24p timeline). Check it out here at B&H Photo.
Additionally, you can pick up the HDR-AS15 in a kit that includes the waterproof case, tilt adapter, adhesive mounts, headband and skeleton frame for $178. Check it out here at B&H Photo.