Emergency braking is the one skill most riders never practice and most need. In Hanoi traffic, the difference between a near miss and a crash is often half a metre of stopping distance — and that distance comes from technique, not luck.
The basic sequence
When something appears in front of you: sit up, look where you want to go, squeeze the front brake firmly and progressively, add the rear brake lightly, and keep the clutch covered. The front brake does most of the stopping on a scooter or motorbike — the mistake most new riders make is relying only on the rear, which roughly doubles stopping distance. Squeeze, do not grab: a sudden grab can lock the wheel, especially on the painted lines and manhole covers that make Hanoi roads slippery.
What to avoid
Locking the rear brake causes a skid; if it happens, release and re-apply. Locking the front is worse — release instantly. Do not brake hard while leaning in a corner; straighten the bike first, then brake. And do not pull the clutch in early — engine braking helps the rear wheel stay stable.
Practice it
Find an empty stretch early on a weekend morning — a quiet industrial road or an empty parking area — and practice stops from low speed until the motion is automatic. Practise with the bike you actually ride, because every scooter brakes slightly differently. If you rent, run the rental-motorbike-inspection-checklist at pickup and include two or three gentle test stops so you know how the brakes feel before traffic tests them for you.
Speed is the hidden variable
Stopping distance grows with the square of speed, and Vietnam’s urban speed limits are low for a reason — see motorbike-speed-limits-vietnam. Riding at the limit means you can stop when a bus pulls out; riding above it means physics decides.
The one-line version
Squeeze the front firmly, feather the rear, sit up straight, look ahead — and practice it once a month so it happens without thinking.