Originally Posted by
ultraman6970
31.8 vs 31.7 u wont notice the difference in my oppinion, besides the obvious one that is to see the screws going a little bit deeper in one than in the other one (only a tiny bit). The issue is that many things are still in english system instead of International System aka metric system that is a lot simplier even to understand. Even the army and the navy uses metrix system for proyectiles trayectory calculations.
2.54 x 1.25 = 3.175
I said they're actually 31.75mm, There's no difference in the OS spec handlebars and you won't see any difference because there is none. :-/
Deda rounds down, others round up, that's the only difference.