Well here is there website http://www.sitrex.com/index.php and Here is a U.S. Dist.
http://www.darrellharpenterprises.com/index.php?page=sitrex-rh2-rotary-tiller-offset :thThumbsU
http://www.darrellharpenterprises.com/index.php?page=sitrex-rh2-rotary-tiller-offset :thThumbsU