The unnamed 38-year-old driver of the blue Ford transit van which struck Mr Maynard – who was cycling with a friend – was initially arrested in relation to the incident.
However, no charges were ever brought and on Saturday, November 15, he was released without being prosecuted.
The older Mr Maynard said: “I do not accept the decision.
“While I wouldn’t wish any charge to be brought unless an offence were suspected, were there the slightest grounds for suspicion, then of course, a jury should have that chance to see evidence, then decide guilt or otherwise.
“In my opinion, this CPS decision has removed that opportunity right at the outset.
“The CPS’s own guidelines in these situations state that these decisions must be influenced by the public interest.
“Surely it is in the public interest that a jury have the opportunity to decide guilt when an innocent cyclist is killed from behind on a clear road?
“When a driver collides with an innocent cyclist from behind, in this case two, then barring acts of god, or overwhelmingly adverse conditions, there has to be careless driving involved.
“Accidents just don’t happen.
“Cyclists have a basic right to be spared the constant fear of being hit by motor vehicles.
“The message needs to be driven home that even the slightest lack of care whilst driving can have devastating consequences.
“With driving comes responsibility.”
Mr Maynard, of London Road, Earley, explained his son was a good, experienced rider.
“Anthony, was a known good, safe cyclist, and was not at fault,” he continued.
“The investigation proved that, as if I needed confirmation. He was a competent and proficient amateur sports cyclist who was always mindful of road safety.”