So yesterday I was in my first crash. I went over the handlebars and now i have a fractured Humerus right at the shoulder joint. But the bike remained unscathed short of the brand new rear rim. It got some scars (not cracks) on the rim break area. I have been told use fine sand paper or to use a granite stone to re-surface the rim break area. What is the best way to do this? has anyone else done this?
Thanks ahead of time.