Sibling rivalry doesn't get any more fierce, but it was probably always going to be a double Honda and Rees family celebration when the 2021 New Zealand Superbike Championships wrapped up in Taupō at the weekend.
Reduced from four rounds to three because of the Covid-19 pandemic, the championship final at Bruce McLaren Motorsport Park became a history-making occasion for the high-powered and high-profile Rees Honda Racing Team.
Whakatāne brothers Damon and Mitch Rees, both riding Honda CBR1000 bikes, were respectively first and second in the premier superbike class standings after January's two South Island rounds, separated by just 16.5 points.
After the first two of three superbike races at Taupō and with just one more clash to come, they were still the top dogs but they'd swapped positions and it was now elder brother Mitch in charge, 10.5 points ahead of Damon.
In the end, Mitch Rees' 1-1-2 results over the weekend were enough to earn him the coveted title, the 28-year-old eventually winning it by 14.5 points from Damon, who suffered brake problems in race two when he was forced to nurse his bike to an unaccustomed eighth placing.