Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 一辆不寻常的自行车前轮有20个辐条，后轮有前轮的两倍。这辆自行车有多少个辐条？


### Response:
 前轮有20个辐条。
后轮有2x20=<<2*20=40>>40个辐条。
所以，这辆自行车总共有20+40=<<20+40=60>>60个辐条。