There'll be some Xcerts that'll do the job but I don't know the name of any of the songs 😳 Presumably you've already got some Fannies in there? You could probably get away with using 2 Biffy songs, 27 maybe and something off a new album since they're basically a different band.
Or… How about Marmaduke Duke, Single Ladies? I'd try and recommend some other Marmaduke Duke as I'm a big Biffy fanboy and Sucioperro are OK but sadly MD are s**t
Good shout on Twin Atlantic btw, Lightspeed's just waiting to be used for a really nice mtb vid, it's almost too perfect.
I always want to use some Mull Historical Society but I've never made it work yet. Had a crack with This Is Not Who We Were once but it didn't hang together well.
How about a spot of the dreaded Runrig? They're pretty rotten but Siol Ghoraidh has a nice pedally rhythm to it… An Ubhal As Airde (the one from the Carlsberg ad) makes for a lovely quiet bit, I used it in a motorbike vid once and it was a total joy to work round. Hearts of Olden Glory or Hearthammer would be usable I guess, again Hearts for a seriously laidback bit. Disclaimer: It's my brother that's the Runrig fan, I'm just a passive Runrigger.