Annoying high pitched squeal !!

[Woodzey80]

Just got back from our tour around Scotland & every now & then when I grab a handful & start coming down the box I keep hearing what I can only describe as a high pitched squeal ! It's intermittent so hard to pinpoint where it's coming from. My obvious thought is the brakes but don't think it is that. Any suggestions ?
Thanks

[Fazerider]

Do you have the wife on the back?  :lol

[dazza]

I get a similar noise only its more of an annoying drone every time Midden comes to visit.  :b

[Woodzey80]

Ha ha ! The missus was nowhere in sight, that might of explained it if she was !!