I have a 2013 (i think) Onza Comp, I'm having a bit of a problem with the chain tensioners, they are small nuts with bolts going through them, the frame makes it really tight to tighten and i'm my case impossible. 
 
	I was wondering whether there is a specific tool that I should use or whether I could use rear chain tensioners like the Gusset Kojak instead and just forget about the other ones.
 
	Favouring the second idea right now, but wanted to see if anyone had a solution or advice.
 
	Thanks.