Short answer: for most people doing a single day on Wadjemup, hire wins. Longer answer, the one worth your three minutes, depends on your bike, your tyres and whether youve ever actually tried wheeling a loaded touring bike up a gangway with two hundred other people trying to do the same thing.
Ive done both. Hired a clunky three-speed from the settlement on one trip, dragged my own gravel bike over on another. Neither was a disaster, but they're not the same day out, and the Rottnest bike hire decision matters more than people think before they've booked the ferry.
What hire actually gets you at Thomson Bay
Land at Thomson Bay Settlement and the hire operation is right there, a short walk from the jetty. You queue, you get sized up for a frame, you get a basket if you ask, and you're rolling in under fifteen minutes most days. That's the whole appeal. No bike bag, no disassembly, no standing at a Fremantle terminal watching a deckhand decide whether your pannier count is a problem.
The hire fleet is built for the island's conditions, which is to say upright, wide-tyred, forgiving things that don't care about a bit of sand blow across the path near Geordie Bay. They're not quick. They're not meant to be. If you're chasing a personal best around the island loop, hire isn't your bike. If you want to get to the Basin, swim, eat a sandwich and get to the next bay without fussing over gear ratios, it's fine. Genuinely fine, not just