The 420 will easily haul you and a child, I am 6' 225 and my wife is 5'8 and 180 and hers will haul both of us with no problem. My 350 even hauled us ok (not as well as the 420 does tho), be carefull when picking out a back seat. The one my folks had (moose) sets the passenger too far back and when we borrowed it it made it very light in in the front(really tricky going up hills with rough spots) but the one I have (Wes Industries <a href="http://www.wesindustries.com/products.asp?id=2&s=5" target="_blank">http://www.wesindustries.com/products.asp?id=2&s=5</a> ) actually sets the passenger directly above the rear axle and makes it alot more stable. The folks said they had the same problems so when i re mounted it on their bike i mounted it 5 inches further ahead and it solved their problems. It looks like the Kimpex outback boxes put the passenger in the same place as the Wes box.
this is the best price I have found for the Wes box <a class="postlink" href="http://cgi.ebay.com/ebaymotors/WES-ATV-Backrest-Back-Seat-Storage-Cargo-Luggage-Box_W0QQitemZ230204553781QQihZ013QQcategoryZ43969QQssPageNameZWDVWQQrdZ1QQcmdZVi
ewItem">http://cgi.ebay.com/ebaymotors/WES-ATV- ... dZViewItem</a>
this is the best price I have found for the Wes box <a class="postlink" href="http://cgi.ebay.com/ebaymotors/WES-ATV-Backrest-Back-Seat-Storage-Cargo-Luggage-Box_W0QQitemZ230204553781QQihZ013QQcategoryZ43969QQssPageNameZWDVWQQrdZ1QQcmdZVi
ewItem">http://cgi.ebay.com/ebaymotors/WES-ATV- ... dZViewItem</a>
