I'm no expert in towing sleds, but I was the horse the other day, and here is the best way I came up with to tow with a Pro. I was pretty nervous about the tunnel getting tweaked, I did a couple things you might like to comment on.
Here is the setup:
1) ran a motorcycle strap (green) around both the board support AND the bumper (yes its a Cobe, but I think this may also allow you to tow with the stock bumper.) this distributes the towing forces over the whole rear section of tunnel, not just the back.
2) Its hard to see, but I ran a strap around the spindle and rear part of the ski loop, so I was actually pulling on the spindle. The strap goes through the loop so that you get a slight tow-in effect to eliminate wandering.
3) I attached a Snobunje Cobra hook into that strap right near the back of the ski loop. By itself, the Cobra is too stretchy to tow with, but double it up like this, and it is twice as stiff and still takes the shock off the tunnel and bumper. Duct tape the hooks onto the strap.
Worked pretty well over some nasty terrain with nobody on the dead sled. Others do anything like this? I see the Snobunje setup, but didn't like just using the bumper, or towing from only the ski loop, especially on non-groomed stuff.
Here is the setup:
1) ran a motorcycle strap (green) around both the board support AND the bumper (yes its a Cobe, but I think this may also allow you to tow with the stock bumper.) this distributes the towing forces over the whole rear section of tunnel, not just the back.
2) Its hard to see, but I ran a strap around the spindle and rear part of the ski loop, so I was actually pulling on the spindle. The strap goes through the loop so that you get a slight tow-in effect to eliminate wandering.
3) I attached a Snobunje Cobra hook into that strap right near the back of the ski loop. By itself, the Cobra is too stretchy to tow with, but double it up like this, and it is twice as stiff and still takes the shock off the tunnel and bumper. Duct tape the hooks onto the strap.
Worked pretty well over some nasty terrain with nobody on the dead sled. Others do anything like this? I see the Snobunje setup, but didn't like just using the bumper, or towing from only the ski loop, especially on non-groomed stuff.