As more people opt for two wheels to get around, bike thefts are also climbing, with more than four per day on average reported stolen in Christchurch.
The city is the latest to adopt a community bike register, with more than 1200 cyclistssigning up in the three weeks since it began.
Senior Sergeant Roy Appley said there were two main reasons why bicycles were taken.
"They're used for transport, in much the same way sometimes cars that are stolen are used for transport and then they're left somewhere," he said.
"Secondly, there's a bit more of a concerted effort by thieves to actually take certain bikes for the purposes of changing their look and repurposing them - which is more of your organised crime-type arrangement."
Some people did not replace their bike for fear of thieves striking again, he said.
"There may be many benefits from cycling, such as even just the cost of getting to work for example, or the health benefits. To lose people from an activity they otherwise enjoy because a thief has interrupted their enjoyment of that is a sad thing."
Port Hills mountain bike tracks, like the Montgomery Spur Loop are popular. Photo / Niva Chittock
Mountain bikes tend to be the biggest target and it can have a huge impact, Appley said.
Avid biker Claire has avoided having any of her bikes stolen but friends have not been so lucky.
"Having a super flashy bike in town with a piddly little lock ... that's just silly, that's just asking for trouble. I actually have four bikes, and I've got two that I definitely would not bike to town on," she said.
It is also why Rick's family leave mountain bikes at home, unless hitting the trails.
"All my family, two kids and my wife, all have cheap bikes that we commute on that, we'd be annoyed if they got stolen, but it wouldn't be the end of the world. They literally cost $20 off TradeMe."
Around Again Cycles' workshop restores and sells second-hand bikes, carrying out a police check on each one that comes in.
Staff member Bianca hears of lots of stolen bikes and has already signed up for the new register, which is supported by the city council and the police.
"Probably 90 per cent of my transport is by bike, so it's very important for me. On the weekends, I take my daughter out with me," she said.
"If my bike does get stolen, I hope [with 529] it can be a quick recovery."
Users upload photos of their bike and its serial number to the 529 Garage register.
They also come with security cameras and charging ports for e-bikes.
Julian, along with most of the cyclists RNZ spoke to, said the security measures did help.
The Linwood Avenue cycleway in Christchurch. Photo / Niva Chittock
"Those bike stations are really good, I've seen those in town. Even just those bars that they have on the footpath, so that there's something solid you can lock to, are good," he said.
"But it's also, I think, a lot of locks that you buy are actually not that great. Like you can just cut through them really easily."
Christchurch City Council has proposed a further $235m for cycling projects over the next 10 years.
The funding will cover the creation of more major cycle routes, safe rail crossings and maintenance of current cycleways.
