Sorry, cann't remember the details, but basically, pretty much everything stops in Ramadan, and is closed during the Eid festival at the end of Ramadan. Office hours are very limited and unreliable, and without being rude, there's a certain lethargy. As you'd expect I imagine, given the fasting and late night eating, not to mention the heat. Ramadan in August, now that's pretty tough I reckon.
Maybe things have improved from a few years ago, but I really wouldn't bank on it. I put the previous guys in touch with someone in the business (customs clearance) and it was still a massive pain for them.
I'll ask around a bit. How late in August were you planning on arriving, and how many bikes? ( and what bikes for that matter ?)