Avon & Somerset Police are appealing for spectators with video or photos of the fatal accident to contact them.
The crash happened as 23-year-old cyclist Junior Heffernan came round a bend during the Severn Bridge Road Race.
Here is Acting Inspector Darren Jarvis...
More top news
A photographer from North Devon has recreated Nirvana's iconic album cover with the same model - 25 years on.
Bristol golfer Chris Wood says he'll thrive in the tense Ryder Cup environment once he steps onto the tee for the first time on Friday.
There's a warning that fraudsters and thieves in the West Country are increasingly targeting the elderly and vulnerable.