I'd avoid it. The 1080p mode only shoots 10fps. That won't cut it for bike action.
Where does it say that? The only specs I could find either on the DX site page, or in the pdf manual stated 30fps for both shooting resolutions.
EDIT: Me bad, just watched the SJ72 review and they stated the frame rate was 10FPS for 1080p mode. Maybe they've improved it? Also the bike mount doesn't look so nice!