The Ironhorse Sunday is an iconic downhill bike which Sam Hill won quite some races on. In addition the Dave Weagle designed suspension attracted a big enough fanbase so that the bike is seen in bikeparks even nowadays, 7 years after it was introduced to the market. Ironhorse has gone out of business in 2009 but before that they seemed to have been working on a new Sunday without the Dave Weagle designed dw-lnik rear suspension. Simon-Watts’ description:
Produced to replace the DW equipped Sundays when it was realized Ironhorse were loosing the rights to DW. Never produced for obvious reasons, but an exciting design. Lighter than my Medium size Sunday with same components.
Have a look at the pictures posted. It look like a classic four-bar design with an extremly low shock placement. Geometry data would be interesting, especially chain stay length an head angle. The chain stay pivot might be above the axle to circumvent the Specialized patent. Esthetics reminds me a bit of the current Trek Session (which is a good thing). I like it. Or rather “I would have liked it, if it had made it to production…”.