How strong is this?

Indian Larry built a frame from chain links for a chopper. It held a v-twin motor. I think it should be strong enough.

there are many different strength factors for link bars too though. i know bikes need to be strong but also look at the weight factor. JMO

Ya ive seen that truck in person, its at a shop here in TX. It also has a chain for link and its like a lime green and orange chevy dually. They do really good work i think that was done before they had a shop tho