Got it guys, thank you! Last question for now - I might need some type of special socket wrench that's got thinner walls, is that right? Or do you guys find normal socket wrench sets fit?
Also, don't Stronglight bolts usually take 16mm bolts, which means I need even a different socket?
Stronglight has more clearance for 16mm bolts than Zeus, but there's no reason why you couldn't use 15mm or even 14mm bolts instead, as long as they fit the spindle.
BTW, the bolts in your picture don't look like they're original equipment anyway.