AberdeenBikers

Right this is going to come out like a tard but its worth checking the simple things as it can catch you out.

I have a tech7 top box that comes with a fitting for plates, it says its universal but I guess it means its universal for sport racks only not top box racks like a givi monolock.

This may seem a daft question but I want to be sure before I wax £70 on a sport rack

Givi make 2 sorts of fittings ...

Mono key and Mono lock

They produce universal mounting plates for both types of box .
A universal plate will be used to fit the box to a sports rack. or and in the case on the mille a converted pillion seat.

The GIVI universal probably will not fit another type of box.
you said that

Neorion wrote:I have a tech7 top box that comes with a fitting for plates,

the Tech 7 box will probably not fit the GIVI rack... if you want a shot of a mono lock box and universal plate you are welcome to have a look.