A male cyclist wearing only a helmet, shoes and a leopard print G-string was spotted as he biked along State Highway 6 in Marlborough, New Zealand, at about 4.30pm on Saturday.
Blenheim man Chris Lane was driving home after taking part in the Havelock Muddy Buddy race when he spotted the sparsely clad cyclist making his way down the road. "We saw this guy riding and we didn't think anything of it, but when we got closer we realised he was naked except for a helmet and a G-string.
"My kids are 10 and 13 [years-old] and they thought it was the funniest thing," Mr Lane said.
The cyclist appeared to be taking the ride seriously, he added. "He wasn't a really scrawny, serious-looking cyclist but at the same time he was gunning along.
"He must have lathered on the sunblock if he was riding for very long otherwise he would have got toasted."
Danijel Duvnjak, who owns a cycle shop in Blenheim said he recommended wearing at least two layers of clothing when cycling to limit gravel rash in the event of an accident.
Chafing could be an issue if a cyclist was not wearing shorts and they had an uncomfortable seat.
You can watch Chris Lane's Facebook video here.
Update: There's a video interview with the cyclist, fire risk assessor, Nick Lowe, here.