Having trouble fitting to my 5
No clearence between chain and device.
Any tips.

Not entirely sure what you mean, pics would be helpful.
What size rings you running?

is this the cheap double one or the laser ones?

I was looking at the double one – whats the issues with it?

I fitted one to my Holeshot and wrote about it here:

http://singletraction.frankencrank.com/phpBB3/viewtopic.php?f=16&t=3192&view=unread#unread

Dunno if it'll help but it's a fascinating read 😉

is it bb mounted, is it a 68mm bb shell, have you removed one of the bb spacers to fit it, is it the inside spacer that you have removed to fit the chain device? if it is a 68mm shell with a ht2 bb it replaces the inside spacer not the outside one to move it inboard and clear the chain a bit