She had seen cyclists pull "dangerous manoeuvres" on local streets.
These included not checking behind before changing direction, and crossing in front of traffic to mount the footpath without warning.
However, cycle safety had improved over the past few years, she said.
Experienced Tauranga cyclist Cliff Kingston, who organised weekly social rides, was surprised by the findings.
"Cyclists are very aware of their vulnerability but there are also times when vehicles see us but they don't register we are there."
Some cyclists did silly things, "but then, so do some motorists", he said.
Cycling advocate and medical officer of health Phil Shoemack said New Zealand lacked suitable infrastructure for safe cycling, compared with Europe where the mode of transport was encouraged and made easily accessible.
"We don't do much to make roads safer for cyclists," he said.
Te Puna man Hugh Clark, who was seriously injured when he rode into a parked car in 2008, acknowledged he was at fault in his crash "but it doesn't really matter who's right and who's wrong because you're always going to come off worse when you're on a bicycle".
Mr Matenga's report showed the victims ranged in age from 6 to 93, with an average age of 46 years, and more than three-quarters were male.
Attitudes toward cycling needed a complete "rethink", Mr Matenga said.
- with APNZ
