Reverse curve ahead
The road ahead bends in two successive curves in opposite directions. Reduce your speed before entering and stay in your lane through both bends. Riders unfamiliar with Thai mountain or rural roads should be especially cautious, as the second curve may be sharper than expected.
Study guide
Connect this sign to practice
Warning signs like Reverse curve ahead test whether you spot the hazard early enough to react. The Thai theory exam often pairs them with stopping-distance, visibility, and right-of-way questions, so practising the symbol alongside its scenarios makes the wording less of a trap.
Now see it in questions.
Spotting Reverse curve ahead in isolation is one thing. Recognising it inside a real exam-style question, among lookalikes and trick wording, is another. The diagnostic mixes it in for you.
