After Madeleine Fasnacht won gold and bronze medals and Anya Louw added another gold last year, two Launceston triathlon converts completed the set with silver medals.

Midway through a three-year commitment to host the continental titles, Cycling Tasmania and Mersey Valley Cycling Club put on an impressive event while the state was even able to call on its own former under-23 time trial world champion Campbell Flakemore to provide the commentary.

Turner's finish behind Queenslander Francesca Sewell in the under-19 time trial mirrored the result at nationals in January.

"I'm pretty happy with that," said the 17-year-old Launceston College student from Kayena.

"A lot of hard work has gone into that so it's good to get the reward."

Watched by her mum Franciska and plenty of supporters from the Tasmanian cycling community, Turner hopes to continue her progress onto the national and international stage.

"After the road race on Sunday, I'll have a bit of a break then focus on the National Road Series with the TIS Racing team.

"Ultimately, I'd love to be able to ride professionally, but we'll see."

Sewell adapted best from the field of 16 to the 15.4-kilometre flat and straight course between Evandale and Nile, clocking 22.53 to win by 15 seconds with New Zealand's Henrietta Christie (23.29) third.

"It was really tough out there," said the 16-year-old Gold Coaster.

"I'm really happy. It's awesome to win. I love riding so it's great to get these results."

Finn Fisher-Black produced a performance as eye-catching as his name to top an all-New Zealand podium in the men's event.

Already a world champion and world record holder on the track, the 17-year-old from Nelson added to his national time trial title.

"I went into track nationals in peak form so had no idea whether I could continue that and am stoked," said Finn-Black, whose time of 34.01 over 26.2km led home compatriots Laurence Pithie (34.29) and Alex White (34.39) with Australian champ Pat Eddy fourth.

"We are stoked to get the top three and this is selection for worlds so hopefully contributes to that."

Victoria's Kate Perry added elite women's gold to the silver she won last year and bronze at nationals in January.

"I'm a little bit shell-shocked to be honest," said the Melbourne 28-year-old who won the nearby Mersey Valley Tour three years ago.

"Time trials are always interesting when you go in as favourite and I really wanted this one and have targeted it since nationals so it's pretty special.

"I always like coming to Tasmania. It's some of the most picturesque landscape and spectacular rides, the locals are very supportive of cycling and I've had a few good results down here."

Coming in 69 seconds behind Perry's time of 37.25 over 26.2km saw Frain collect Tasmania's second silver of the day.

"I've been thinking about this all week and really wanted it," she said.

The 26-year-old, who grew up in Launceston and went to St Patrick's College before moving to Hobart for work, only took up cycling a year ago after stress fractures to her foot and hip curtailed her triathlon career and embraced a steep learning curve in the NRS with TIS Racing.

"I'm pretty new to this but did want to get a good personal result to feel like I'd achieved what I wanted.

"I decided to stick with cycling full-time and love it. I want to go and experience Europe or America and go as far as I can because it really is my passion now."

Victorian Jenny Pettenon was third in 39:41.

The 2016 Tour of Tasmania champ Ben Dyball returned to claim his maiden Oceania title, clocking 49.14 over 40km at an average speed of 48.7 km/h.

"I'm a bit tired but it's worth it," said the 29-year-old Sydneysider who had previously claimed two silvers and a bronze in the event. I'm relieved to finally get a gold  and stand on the top step of the podium.

"I've always wanted to win the Oceania time trial."

Victorian teenager Sarah Gigante continued her meteoric rise as she effortlessly stepped up to the under-23s.

A year after finishing third in the under-19 time trial and then winning the road race, the Melbourne 18-year-old added her first Oceania title to the elite national road race she won in January.

"Evandale is definitely one of my favourite places along with Railton and Buninyong," she said.

"This is really special. I just cannot believe how this year is turning out. It's been a great start and this was a race I really wanted to target."

Gigante's time of 38.34 was 14 seconds ahead of New Zealander Georgia Christie with Victorian Jemma Eastwood third (39.04) and Devonport's reigning under-19 champion Anya Louw fourth.

Liam Magennis won the 40km men's race in 50.15, having finished second last year and first the year before.

"I felt pretty good out there but it was a tough course," said the 22-year-old from Port Macquarie who finished 96 seconds ahead of Victorian Alastair Christie-Johnston with Jordan Louis, of NSW, third in 52.28 and Zach Johnson the best-placed Tasmanian in seventh.

"I was a bit nervous coming into this so to get that result feels pretty good."

The para championships came down to a head-to-head between Tasmanians Patrick Best and Patrick Dennis.

Best, of Devonport, won over 15.4km in 24.14.

The road races will be held around Railton on Saturday and Sunday.