Chain rollers - adjustable connecting rod ?

[Durf4693]

So quick question. How come I keep hearing of upper and lower chain rollers? I only see one lower on mine. And what is the purpose of having a adjustable connecting rod on the rear suspension linkage ? To lower for a race ?

[trickedcarbine]

Should be two rollers. Upper and lower. Some drag guys eliminate both and just run a tensioner.

 

Typically if there is an adjustable link in the rear, it is for lowering the bike. Kind of common for guys with longer swing arms that make the back sit up higher and in TT racing to lower quads for handling.

[Durf4693]

 

I see, It looks like a stock swingarm with 6 holes to raise or lower the link.

I must be challenged bc I only see one roller, even on my 1998 stocker I only saw one. Maybe I'm not looking hard enough :-/

Edited September 29, 2016 by Durf4693

[trickedcarbine]

Could just be missing

[Durf4693]

Ha yeah found it. Mine was so wore there was nothing even there. What's a good aftermarket brand ?

[trickedcarbine]

Upp

[registered user]

Some drag guys eliminate both and just run a tensioner.

hmm I wonder if that's why so many cases end up with chain wack . seems perfectly plausible to me

[JTmachining]

hmm I wonder if that's why so many cases end up with chain wack . seems perfectly plausible to me

That's when the chain breaks yo

[Durf4693]

Yeah the top roller should was missing on the bike I'm working on, Wtf. I ended up getting Powerclip rollers, I like the idea behind them, had to use a longer bolt though to get the roller centered on chain.