Weekly theft trend
Incident counts per week with a 3-week moving average
Time-of-day × day-of-week heatmap
Darker cells = more reported thefts at that hour. Hover for the count. Hours are extracted from incident context; gaps are inferred from id.
Bike brand risk profile
Composite score (0–100): volume + e-bike share + premium share, offset by recovery rate
| Brand | Incidents | Stolen | Recovered | E-bike % | Recovery % | Risk |
|---|---|---|---|---|---|---|
| Cannondale | 1 | 1 | 0 | 100% | 0% | 32 |
| Velectrix | 1 | 1 | 0 | 100% | 0% | 32 |
| Santa Cruz | 1 | 1 | 0 | 100% | 0% | 32 |
| Merida | 4 | 3 | 1 | 25% | 25% | 31 |
| Trek | 1 | 1 | 0 | 0% | 0% | 27 |
| Auren | 2 | 2 | 0 | 0% | 0% | 23 |
| Hill | 1 | 0 | 1 | 100% | 100% | 7 |
| Giant | 1 | 1 | 0 | 0% | 0% | 7 |
| SR Suntour | 1 | 1 | 0 | 0% | 0% | 7 |
| Torpado | 1 | 1 | 0 | 0% | 0% | 7 |
| Norco | 1 | 1 | 0 | 0% | 0% | 7 |
| Eddy Merckx | 1 | 1 | 0 | 0% | 0% | 7 |
| Pedal | 2 | 1 | 1 | 0% | 50% | 1 |
Prevention & recovery toolkit
U-Park bike cages on Topham Mall, Rundle Place and Frome Rd offer CCTV + swipe access. Free with a registration.
Cluster of Semaphore Park targeted thefts (Apr 25) shows organised crews. Take bikes into the cabin or use a chain to a fixed bollard.
CBD pub & market thefts cluster between 8:30pm–1:00am. If parking outside hospitality venues, use a grinder-rated lock and a GPS tracker.
Western suburbs roller doors are being forced open. Add a garage-door defender, motion-triggered camera, and never leave bikes visible from the street.
Always secure frame AND rear wheel to an immovable object. Use two different lock types so a thief needs two tools.
Log your bike with BikeVAULT / Bike Index AU and engrave a secondary mark. Recovery rates triple for registered bikes.
Stickers, paint chips, custom components. Police and resellers (Gumtree, Marketplace) match on visual ID more reliably than serials.