Broderick and Bruce Wilson won the No Limits Open 600 endurance race at Cadwell Park this weekend to claim the championship.
The brothers achieved their sixth victory out of six races to ensure they could not be caught.
Lining up on a grid of 44 teams, the siblings had already set pole position in qualifying and dominated the three-hour race from start to finish, riding on their Yamaha R6.
“We’ve had such a fantastic season,” explained Bruce, who has returned to racing bikes this season in order to help Broderick’s transition from motocross to road racing.
“When we started the year we were hopeful of maybe making the top five on occasion, so to have won every round this season has blown us both away.
“Winning the championship at our local track made the experience even more special.”
Riding for an hour at a time, the physical demands of the undulating Lincolnshire track proved gruelling on all teams, but off-road enduro champion Broderick’s extreme level of fitness meant he was more than up for the challenge.
“My off-road background has given me a great platform to progress into the road racing scene, with my fitness being a real attribute,” said the Gipsey Bridge competitor.
“Endurance racing in general is both extremely physically and mentally draining.
“It’s been a really tough year, but it’s been so enjoyable and I feel well established on a road bike now.”
With two rounds left in the season, the brothers are hopeful of more continued success in the endurance championship.
Broderick is simultaneously working hard on his solo efforts in the sprint classes.
“It’s been great to compete with my brother in the endurance class, and also to race in the sprints, too,” he added.
“I intend to focus more on sprint racing next year, with my end goal being to race in the BSB championships within the next two years.”
The brothers now head to Anglesey, in Wales, for the seventh round of the season, before the final round of the year at Donington Park.