Penny Markt will be doing motorcycle gear as of 28th March. Scroll down to see the range.
Their geraniums are in stock today (hey, this is news for old gits you know).
As for bikewear per se, Munich's nicest shop is probably
Bikeway. They speak English (well they did to 2 Indians on Friday afternoon who were looking at back protectors), give you free coffee or juice, have lots of secondhand bits in the basement and are very nice to boot.
Talking of boots, if anyone dares to laugh at my fairy biker boots, I shall kick them somewhere not pleasant (and yes, I do mean you sunshine).