He began the journey with friends Chris Wignell and Jimmy Rice who travelled in a camper van, before he continued alone for long stretches and met different support crews along the route.
Friends joined him for sections along the route, while he completed the ride on a road bike with his equipment carried separately.
Their efforts raised more than £5,700 via a JustGiving page.
Goliah added: “There’s different ways people do it on a bike, but I wanted to do it in six months, so I did it on a road bike and had support carrying the bags.
“One of my favourite parts of travel is embracing local culture. Some of the places that you stop in at night you’ve never heard of and will likely never visit again were so enjoyable.
“On the flip side, sometimes you can have 100km between towns and get yourself caught in the middle of nowhere.
“I went over the handlebars in Kazakhstan and I’m pretty sure I broke my nose so I couldn’t breathe out of it – in a sandy desert that ended up being quite dry on the throat!”