There's been years of internet speculation and rumours surrounding this bike. A Giant Anthem X 29er prototype has been spotted at the Sea Otter Classic. Features include a tapered headtube and Giant’s Maestro rear suspension. This second generation prototype and the 2011 production models will be aluminium, with a carbon framed version set to join the range for 2012. Carl Decker (pictured) has already won a Super D race aboard the Anthem X 29er at the Sea Otter.