Chain Length Problem

[Gandalf the Yellow]

so new frame recently has caused this issue, horizontal drop outs and using Echo TR cromoly snail cams.

Stock frame, 380 drop outs with +/-10mm adjustment from snail cams. running 18/15 ratio

using a kool chain and got it as 'short' as I can (fully stretched now as it's been ridden on for about a month), with some slack of course, and to be able to get the chain remotely tensioned I need to use the full adjustment of the snail cam and when the wheel is fully pushed back there's still a fair amount of slack (enough for some chain slapping action) - it's annoying but just about bearable and it's less responsive.

so I thought maybe a single half link may solve the problem by replacing 1+1/2 full link with 1 single half link, it's shortened it by about 10mm or so which on paper seems perfect, but once it's on and tensioned all the way out the chain was just slightly too short and tyre is scrubbing against the frame and my rear brake ran out of adjustment to be fully in contact with the rim.

just wondered if anyone else had similar problems? I can't get bigger snail cams because the drop out is pretty much out of adjustment too with the wheel pushed all the way back and the axle won't fully sit inside. any suggestions on what I can try or will I have to live with a slappy chain? I don't really want to use a full half link chain, bad experiences in the past.

Steve

[ghostrider88]

Get a new chain,510hx won´t stretch so much so this won´t happen/will take longer to happen.

[Gandalf the Yellow]

I've snapped 510/610 chains before but not with a Kool so I was hoping to be able to stick with this/something with similar strength.

will the single half link stretch a noticable amount?

Steve