"It's not just a bike, it's an extension of my legs, its an extension of me," says Danielle Loizou-Lake of her custom-made bike, which was stolen in a brazen break-in in Perth's southern suburbs on Thursday morning.

Danielle Loizou-Lake with her girls in her $8000 custom-design tricycle. Credit:Danielle Loizou-Lake

Mrs Loizou-Lake, a mum of two girls aged five and three, suffered a spinal-cord injury in 2002 and now lives with partial paraplegia.

While she can walk, she has no movement below her knees. It took almost three years and close to $8000 to engineer her tricyle to fit it to her body and posture needs. As a family with only one car she said she was lost without it.

"This has big implications on my life. It allows me and my girls to get around in a safe way. I can't walk that far," she told WAtoday.