Tom Pidcock voiced anger after two of his Pinarello‑Q36.5 teammates were hit by a police vehicle traveling the wrong way down the road during the Tre Valli Varesine in Italy.
He said he wanted to 'stop racing' after learning that Marcel Camprubi and Thomas Gloag were knocked from their bikes with six laps of the finishing circuit remaining.
Pidcock finished second in the one‑day race in Varese but was near 'mad' following the incident. Spain’s Camprubi was able to continue, while his fellow Briton Gloag stopped and required stitches on his knee.
"First of all, I wanted to halt the race, halt racing myself," Pidcock told Eurosport after the race, which was won by Belgium's Jarno Widar in a sprint finish.
"I was mad. I had guys each riding in front of me, for me, and past 2 of them are on the floor."
"This shouldn't happen. But we continued and got back into the race and I'm blessed that I could be on the podium."
BBC Sport has contacted race organisers and local police for comment.
In August, two‑time Olympic mountain bike champion Pidcock won his second cross‑country world title at the Mountain Bike World Championships.
He dedicated that triumph to British cyclist Finlay Tarling, 19, who died on 14 August during the Volta a Portugal after a high‑speed collision with a van that had strayed onto the closed road.
Camprubi posted a representation of a broken motorcycle on Instagram Stories, with a caption that read: "Sad that you person to hazard your beingness to race, 1 period aft a tragic accident."