Never heard of it. Cool though.
http://www.ebay.com/itm/vintage-Groundhog-mini-bike-made-by-reiner-2-person-with-fat-tires-very-rare-/321054096383?pt=Go_Karts&hash=item4ac050bbff
http://www.ebay.com/itm/vintage-Groundhog-mini-bike-made-by-reiner-2-person-with-fat-tires-very-rare-/321054096383?pt=Go_Karts&hash=item4ac050bbff
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