Second result on google gives us the answer:
http://www.abc.net.au/science/articles/2015/07/07/4251468.htm
"So the creationist argument relies on us finding no evidence of individual parts of the motor having a role outside of bacterial flagella.
Luckily, individual components of the bacterial flagellar motor have indeed been found elsewhere. And they work. So the motor is 'reducible', and certainly not 'irreducibly complex'. "
Such examples are further evidence of evolution.
For further reading, I can recommend:
https://www.amazon.co.uk/Wonders-Li.../0007452675/ref=cm_cr_arp_d_bdcrb_top?ie=UTF8
Finished it a few weeks ago, and very interesting, including ways in which life may have first formed.