I recently built a bolt on trike conversion using 1 1/4 incn black pipe and bearings from tractor supply. I used 5/8 solid round bar for axle and ground keyway with grinder. My question is how did you make your wheels and attach them?There are dozens of conversion kits out there on ebay and from a buch of diff dealers.
Just on word of warning "crome don't get you home" so stear clear of the "lowrider type" there made cheaply and sell for just as much as the kits made for people with limited mobility.
The two basic types are ,cantlever or bolt on and some cross over useing both.
I fab my own so i can't say i've ever bought one but heres a pic of the one i ripp off.
I'll try and find the supplier for you asap