He is a positive and sprightly 80-year-old who still enjoys the physical work involved.
He enjoys testing himself against the physical extremes and finds cycling a good vehicle for this.
Grandiek won seven gold medals in cycling events in his age group at the Masters Games.
He does not get challenged in the over-80 grade but takes pride when he rides faster times than people 20 to 30 years younger than himself.
They started the riders by age in yesterday's 20km time trial from Brighton towards Taieri Mouth and back.
Grandiek, the oldest competitor in cycling, was off first and finished in a respectable 50min 30sec.
There was a strong southerly facing the riders on the outward journey.
"It was tough, especially going out into the head wind," Grandiek said. "But coming back was good."
Road racing is not his specialty. Her prefers the track and has been timed at 49sec for the 500m time trial. He has a time of 3min 29sec for the 2000m individual pursuit at the velodrome in Invercargill.
Grandiek only started cycling in 2007 as a way to keep himself fit.
He was just getting confident on the steep tracks at the veldrome when he had a year off cycling while he had a triple bypass operation.
Grandiek was not prepared to let this little interlude slow him down.
He still lives a full life and continues to enjoy the physical challenge.
He has a positive approach to life and has always kept himself fit. "I recovered quickly and have had no problems with my cycling," he said.
He trains three days on the track and on another days goes out for a long ride on the road for 60km just for pleasure.
The fastest time of the day went to Ray Dunstan (Dunedin) who won the men's aged 50 to 54 grade in 28min 04sec.
Aaron Bleakley (Dunedin) won the 35 to 39 age-group in 30min 52sec.