U
User10571
Guest
My 2 speed Brompton has developed a high pitched chitter, up there with chalk on blackboard - but definitely chittery, whenever/ not always (but I can induce it 90% of the time) I go over rough tarmac, speed bumps, potholes, drain covers etc.
It is coming from the front end of the bike, and as I say it it chittery, rather than cyclical.
It has that dry metal on dry metal flavour to it.
I thought it might be from the points of contact between the main hinge clips and the frame (I have the Brompification variety) so I've given the mating surfaces of both some lithium grease - with little or no effect - which makes me think a) Try Copaslip and b) it is something else.
Anyone else experienced anything similar?
It isn't a high mileage bike and has hardly ever been out in the rain.
It is coming from the front end of the bike, and as I say it it chittery, rather than cyclical.
It has that dry metal on dry metal flavour to it.
I thought it might be from the points of contact between the main hinge clips and the frame (I have the Brompification variety) so I've given the mating surfaces of both some lithium grease - with little or no effect - which makes me think a) Try Copaslip and b) it is something else.
Anyone else experienced anything similar?
It isn't a high mileage bike and has hardly ever been out in the rain.