Two.

The first I was in line with the cars on a single lane back street coming up to a roundabout. I was a little close to the car in front of me and when they stopped very quickly I broke my helmet on their back window. I was stunned, and had to pull my forks out so the front wheel would clear the frame, but rode home. The helmet was held together by the velcroed padding. Shouldnt have ridden home.

The second I was again in the lane in a 50kmph zone, but two lanes. I usually was able to do 50 in this zone, so it made sense to take a lane. But a car was turning off ahead of me, so I, along with the other cars, was being held up a little. When it became clear I stood up on the pedals to minimize my affect on the traffic.

The chain slipped, I went down. Broke the back corner of my helmet, broke my collar bone and prolapsed a disc and had sciatic pain for 10 months.

I rode for 4 years in China, but didnt wear a helmet. Now back in Australia where helmets are mandatory.

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