I just revived a V1 GPR from E bay
They don't make a mount for my DR 650, it looks like the pivot arm should be centered on the triple clamp stem.
I know it centers left and right but when centered fro and aft it doesn't leave a lot of room for the fixed arm to clear.
The only thing I could find at GPR says the fixed pin should be in the middle of the slot not at the end.
Any help would be great, I am going to need to drill and tap the top of my bar mounts and will only get one chance to get it correct.