Just an extra 'l' instead of a double 'e' for 'wheeler'. And there are three signs like this within 40 meters of each other, all of them spelled the same way, before you ask.
I guess what gets to me about things like this is the fact that not enough care is given to spelling things right on big banners and hoardings. It reflects an attitude of not caring. Why care about things like this though, right? Fair enough. But it seems to me to permeate deeper levels of one's existence, this attitude, that is. And hey, just to prove me too "anally retentive", it looks like the guy on the bike seems to have no problem with the misspelling because he's waiting to park. However, in an attempt to take a final dig at all of you who think me too "anal", well, how do you know he's not reading the Tamil version?