State of the art in 2008 but still does what it says on the box. Comes with a 53mm, internal diameter, anti vibration mount and 2 piece wiring loom for hard wiring to your bike battery. I have powered it up on a standalone battery and all the functions are there and it acquires a satellite signal. £55 including UK mainland, insured, 2nd class, signed for, parcel postage (delivery aim, 3 working days). Andy
