| Wasn't a DID by any chance, was it?
Get a heavy duty AFAM chain - looks like the sort of thing used to tie supertankers down.
I have one fitted by Nelly to my ST4S ( equipped with a Scottoiler ).
Fitted in March this year it went down to Italy and got back as far as Grenoble before it's first adjustment.
It came back from Grenoble & did another 1500 or so miles including a track day before being adjusted again when serviced & new tyres were fitted.
It then went to Portugal & back, has done another 900 miles since & is still well within adjustment limits.
This is on a bike that gets a fair bit of stick.
The right chain will last well and not need loads of adjustment.
Andy | 
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