Alright guys! I am a lurker here and have finally decided to step up to the plate. The motivation behind this trike is my mother. After my father passed away my mom moved into a small house about a half a mile away.. Well I just fired her lawn boy so I need to fill in. And that's how I am justifying this build to the wife! The rear end will be a surprise for now. But I am going rat rod in this. Here is the pipe fitting "adapter". I will tell you this will be a fixed gear 3 speed with reverse! My loving wife is in nursing school and unfortunately build time and study time overlap by about 98% so construction has been coming in spurts.