They were bought second hand as new so can't send back but after 100 miles they're squeaky underconpression. Is there an easy fix, is this common? I've heard people having it with pikes before.
when was last lower leg or full service?
I would do a lower leg service in case they are just dry.
You can also cycle the damper and I would personally have a look at the air spring as its so easy to check.
Never serviced. Bought second hand but new and only done 100 miles
Sorry, thought this was going to be a Bee Gees thread... as you were
what do you class as squeaky? and where from?
It'd be worth doing a lower service. Not unheard of that they are dry from the factory.
I've just got bike back out and can't make it squeak just with pressure without riding. But when I was at Gisburn it wouldn't stop.
Are you sure it's not the infamous Gisburn mouse infestation?