The Trials model was designed for more extreme obstacle riding and featured a taller bottom bracket (13"), shorter chains stays (16.5") and a steeper head tube. This bike is fully fillet brazed including the high rise stem (there is also a 3/4" headset spacer to bring the bars up higher). Many Trials bikes would have only used a single or double chain ring setup but this one has a three rings.
More details @ http://mombat.org/1985_Mountain_Goat_Trials.htm
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