correct the sentence Well I cant say for sure since I dont ride a bike However there have been concerns about safety particularly with electric bicycles as they have been caused many traffic accidents

"Well, I can't say for sure since I don't ride a bike. However, there have been concerns about safety, particularly with electric bicycles, as they have caused many traffic accidents in China. This is mainly because some people disregard traffic rules when using electric bikes. Therefore, the government is considering regulating electric bicycles."