Police are appealing for witnesses to a crash in Queensbury.
A cyclist and a white van collided at 10.15am yesterday on the A644 Brighouse and Denholme Road close to Perseverance Road.
The cyclist was with a group of eight other cyclists. He was towards the back of the group.
He collided with the white van which was overtaking the group at the time.
The driver then continued on without stopping.
The van is described as possibly being of a long wheel base and high.
The 56-year-old cyclist, who is from the Huddersfield area, was taken to Bradford Royal Infirmary with a serious shoulder injury.
Any witnesses are asked to contact PC John Cummins of the Western Area Roads Policing Unit on 0845 6060606.