Sea Otter: New long-travel bikes Weight down, suspension improved gravity rigs Share on Facebook Share on Twitter Share on Pinterest Share on Whatsapp Share on Reddit Email to a friend By James Huang Published: April 24, 2008 at 3:19 am The lighter and simpler 303 RDH complements Yeti’s existing 303 James Huang The stout-looking rear end offers 7″ of travel and is intended for downhill applications. James Huang The swingarm activates a rail-controlled linkage for a more precisely controlled shock rate. James Huang In spite of the complicated look the prototype Yeti 303 RDH is essentially a single-pivot bike. James Huang After a successful initial run on the 303 , Yeti has expanded its rail technology to other models. James Huang The prototype 303 RDH is rife with intricate machining work. James Huang Full downhill frames are still equipped with 1 1/8″ head tubes both top and bottom. James Huang The beefy dropouts help keep the rear wheel in plane. James Huang The 303 RDH uses the rail to control shock rate but the 303-7 uses it to control the wheel path. James Huang The rear end of the 303-7 provides a rearward axle path for better square-edge bump performance. James Huang There’s a lot going on here. James Huang The sensitive parts of the centrally located rail are somewhat shielded from rear-wheel muck James Huang The unique suspension kinematics requires the use of this complex forward pivot. James Huang A small swing link adds rigidity to the rear end. James Huang As on all of the Yeti prototypes , there’s a lot of machine work involved here… James Huang …and here. James Huang The head tube on the 303-7 is a standard 1 1/8″ but is machined to shave a few grams James Huang