PM me about what are these chapters supposed to be. I have pretty big experience as a mechanic, so probably I could help ya. Also that would be good for me to practice.
here are some of my articles for you to judge if my English is good enough https://www.pinkbike.com/forum/listcomments/?threadid=157992&pagenum=1#commentid5587340 https://www.pinkbike.com/forum/listcomments/?threadid=153001&pagenum=1#commentid5596921