Williams, 21, won the men’s 15-24 years cruiser class at the annual championships at Gawler, north of Adelaide, on Saturday.

He backed up with a fourth-place finish in AA men’s 20-inch class later that day to emerge rapt with his performances.

The state championships success comes seven months after Williams represented Australia at BMX world championships in Rotterdam.

He reached the quarter-finals in both classes at worlds, the highlights of his career to date. 

But clinching state honours ranks close to that achievement.

“The states was a big thing, it was a different thing. When you go to states you’ve got your mind set on getting a really good result,” he said.

“Of course that was the case when I went overseas, but it was more about being there and representing your country.

“I know when I’ll look back on it in 10 years’ time the world titles will be a way bigger deal than the state titles, and is now. But I’m still pretty proud of this.”

Williams said getting a fast start — something which had been a minor weakness in the past — was crucial to his weekend success. 

“I realised after I went overseas I was really happy with how I went. But if there was one thing I had to work on, I had to get a quicker start,” he said.

“So I’ve been working a lot on my starts. In the 24-inch (cruiser) class, I got in front straight away. Once I was in front, it was easier from there.

“With the AA men’s (20-inch) class, that’s why I went well in that, I got a good start, I didn’t have to play catch-up at all. I was in the mix from the start.”

Williams said the South Australian titles were a “stepping stone” to nationals, in Brisbane in May. He also plans to head back to worlds in Belgium in July.

“I feel as though I’m not in my best form. I know I was riding heaps faster when I went overseas six months ago,” he said.

“But enjoying riding has taken the pressure off. When I rocked up to the titles on the weekend, I felt why I did so well was because I wasn’t nervous.”

Williams, a civil engineering student at Deakin University in Geelong, started BMX riding by chance when he was three.

His father Ian underwent a knee reconstruction at 33 and was encouraged by his doctor to take up cycling.

“Being a 33-year-old he wanted something more extreme than road cycling, he thought he’d give BMX a go,” Williams said.

“Seeing as I was young, he brought me along for a bit of fun. We did it as a hobby, then my younger brother (Matt) got into it.”

Williams was one of three Warrnambool BMX Club members to claim podium finishes at the South Australian championships.

Annika Jephcott placed third in the girls’ nine years 20-inch class. She also earned seventh in the cruiser class.

And Nikita McKinnon earned two third-place finishes, in the girls’ 14 years 20-inch and cruiser classes.

Warrnambool BMX Club president Karla Jephcott said the results were the club’s best at the event.

“Mic Williams, he seems to be riding really well at the moment, on the top of his game,” she said.

“And it was really good to see the two girls in there too. Both have tough age classes. To see them up there was fantastic.”

Others to make finals included Karla Jephcott, Joanna Jephcott and James McKinnon while Tim Jephcott and Axel McKinnon also competed.

Meanwhile, the Jetty Flat BMX track is re-open after contractors completed a $58,000 upgrade.

The works included laying asphalt on three gravel berms — angled track turns — in time for the club to host a BMX Victoria event next month.