Lenz Sport has been in business for quite some time. They have been making their bikes out of Colorado since the late 90′s. Owner/Designer/Builder Devin Lenz has created several 29er bikes with varying amounts of travel. The Mammoth is a trail oriented mountain bike with a single pivot linkage driven suspension design offering 5″ of travel. Recently Dirt Rag published a review of the Mammoth on their website. Check out what their thoughts on the Mammoth trail bike were.