There's some links on my web page to some good carting info sites. Just look for the carting or carting/ scootering equipment headers. I have links to general sites, vendors and some free carting plans.
http://members.aol.com/rottweilerwor..._competing.htm http://members.aol.com/rottweilerworld/equipment.htm
At one year of age I would not add any weight, and I would go easy at first. By two you can look to start adding weight and prolonged endurance. Rotties are still developing and any driving or pulling should be held off until they are a bit older.
Sharyl Mayhew's site has a good description of introducing your dog to carting.
http://users.erols.com/gr8rswis/IntroCarting.htm
Warrik Wilson's site is also outstanding since it covers just about everything.
http://www.cartingwithyourdog.com/
Good luck!!
Dawn
U-CD Cammcastle's Mystic Riven CD NA NAJ NAC NGC NJC TT CGC
http://members.aol.com/dplantier http://members.aol.com/rottweilerworld