TredSled

[cog]

Very few gyms put aside room for a sled area.Rogers Athletic offers a twist on the teadmill.

http://www.rogersathletic.com/strength_training/speed_and_power/speed_and_power.asp?pid=302

[tiramisu]

That's gotta be expensive. My old tire isn't as pretty though.

[cog]

It has some fancy electronics for the coaches.I think you could build your own with a manually adjustable resistance.Lots of broken down cheapo treadmills out there.Some of the best pumps I ever had we're from pushing vehicles out of sand.Then the beer in the trunk got hot.Thirsty as hell with hot beer.