cbr125 forum

Hey, I have a 2013 CBR125R and i've been thinking about getting clipons to lower the handlebars
this is what the bars look like stock: https://i.imgur.com/ZTo9l1Z.png
will undoing these bolts that i circled and just replacing the stock (really high imo) clipons with new ones? would putting some similar ones to these: https://i.imgur.com/FF3bfX0.png work by just putting them on there and screwing the bolts? is there any chance they'll hit the tank or anything like that?

if so, what size should i buy? (there are sizes ranging from like ~30-50mm) not really sure how to measure the diameter or whatever i should call it
thanks!