after racing Riverwest 24 this year, i caught the fixed-gear bug again. (haven't ridden a FG since 2013)

but my knees are fubar. (both need replacing, but i'll be waiting a while)

long story short, i'd like to hear from someone 30+ with serious knee issues that still rides fixed, and decide if it's worth a shot for me.

i would obviously start with mild street gearing and ride almost all flats......

any help appreciated, thx

p.s. very few of the things my doctors & PT peeps have told me have held water, so here i am.