Say there’s a race up Tantalus between a bicyclist on a bike share bicycle and a triathlete runner, who wins? We’ll find out on Sunday.

It was just a preview, and warm-up on Saturday for the annual Tantalus Time Trial, when cyclist Sau Hsu will ride a Bikeshare Hawaii bike up Tantalus Drive against local triathlete and runner Lectie Altman and other non-Bikeshare cyclists.

It’s a fun non-official race, to see who, or what, is faster.

“Cause Bikeshare bikes are not made for this, they’re not made for racing, there’s going to be a lot of beautiful racing bikes coming up this hill and there’s going to be the Bikeshare bike which is made for comfort and safety and all of that, and it’s not just a racing bike,” said Lois McCarney, CEO of Bikeshare Hawaii.

But what makes the race different will be the comparison of man versus man on machine.

“Now I am running, and Sau had the idea to ride the Bikeshare bike up Tantalus and asked if I wanted to run and race him and I thought it would be a great idea and wanted to support Lori and Bikeshare Hawaii,” said Altman.

Cyclist Sau says although he is going to try his best, he does not deny Altman’s abilities, calling her “superhuman.”

” I assume she’s going to kick my butt, but I’m going to try my best to kick her butt kind of deal,” said Hsu. “It’s going to be one of those kicking butt scenarios where everybody says their gonna kick each others butt, but let’s be real Lectie is going to beat me.”

The race is four and a half miles, up 1,400 feet.

The Tantalus Time Trial is the oldest continuously running bicycle race in Hawaii. The race starts on Makiki Heights Drive at 7 a.m.