Square Tubing Size

[redidbull]

I kind of like this frame. I'm thinking of building it into a motorized version with the 6.5 predator I have. Figure I can move the seats forward enough to have room for the motor. Was trying to figure what size tube that is. I have some 1.5" but thinking that may be bigger. Any thoughts? Thanks. Jim

 

[Old Iron]

Looks like 2x2 to me.
Definitely want as thin of a wall as possible to keep down the weight.

 

[redidbull]

Place I get most of my tubing from is by the pound, so thin it will be. Thanks. Jim

 

[Bonehead]

If you zoom in on the back bumper, you can see the wall thickness. (just as a rule of thumb, typically the thinner the wall the more square the corners on tubing)

 

[smallfoot]

I used 1x4 thin wall on recommendation of the build I was following on my kart. OI is right! If you use that go thin wall for light weight. Placement of the seat is easily done. Some changes to steering angle and length can be done easily. In fact adding length to the frame in the rear would be easy too. If you use a predator get a torque averter for easy placement of chain angle and length. The torque averters offer multi-hole attachment for easy mounting and adjustments.