Ellsworth Momentum SST.2 Frameset: The Momentum is a pure-bred 100 mm slope style bike built to make it right at home at your favorite park, jumps, or 4X track. Ellsworth's ICT suspension in combination with Fox's 831 fork make this bike ACE any hole shot. Its short wheelbase, low slung bottom bracket and slack head angle allows riders the ability to point and shoot into their favorite line. As with all of the sst.2 Ellsworth frames, the Momentum is made with our lighter and stronger pivot integrated seat tube and semi-integrated tapered head tube.