I am a bloody idiot! Please help!

[bunnyman666]

I used to wrench bikes, but I specislised in road bikes. Even the track bikes I am familiar with used built in chain tensioners.

I can’t for the life of me figure out how the frack these are supposed to work:

 

[Captain Awesome]

Similar but same principle

 

[bunnyman666]

I will try that again. That’s how I had attempted to install them LOL I will try it again! Thanks @Captain Awesome

 

[ZZ3Malibu]

Look like BMX style, https://www.google.com/search?sxsrf...280&bih=577#kpvalbx=_LhXAX7CYO9SawbkP4_m24Ao8